EXHIBIT 4.13



                               SECURITY AGREEMENT

                                      among

                           TRANSDIGM HOLDING COMPANY,

                                 TRANSDIGM INC.,

             CERTAIN OTHER SUBSIDIARIES OF TRANSDIGM HOLDING COMPANY

                                       and

                             BANKERS TRUST COMPANY,

                               as COLLATERAL AGENT

                        --------------------------------

                          Dated as of December 3, 1998

                        --------------------------------



                                TABLE OF CONTENTS


                                    ARTICLE I
                                                                         
SECURITY INTERESTS.............................................................2

         1.1. Grant of Security Interests......................................2
         1.2. Power of Attorney................................................2

                                   ARTICLE II

GENERAL REPRESENTATIONS, WARRANTIES AND COVENANTS..............................3

         2.1. Necessary Filings................................................3
         2.2. No Liens.........................................................3
         2.3. Other Financing Statements.......................................3
         2.4. Chief Executive Office, Record Locations.........................3
         2.5. Location of Inventory and Equipment..............................4
         2.6. Recourse.........................................................4
         2.7. Trade Names; Change of Name......................................4

                                   ARTICLE III

                   SPECIAL PROVISIONS CONCERNING RECEIVABLES;
CONTRACT RIGHTS; INSTRUMENTS; CHATTEL PAPER....................................5

         3.1. Additional Representations and Warranties........................5
         3.2. Maintenance of Records...........................................5
         3.3. Direction to Account Debtors; Contracting Parties; etc...........5
         3.4. Modification of Terms; etc.......................................6
         3.5. Collection.......................................................6
         3.6. Instruments......................................................6
         3.7. Assignors Remain Liable Under Receivables........................6
         3.8. Assignors Remain Liable Under Contracts..........................7
         3.9. Further Actions..................................................7

                                   ARTICLE IV

SPECIAL PROVISIONS CONCERNING TRADEMARKS.......................................7

         4.1. Additional Representations and Warranties........................7
         4.2. Licenses and Assignments.........................................8
         4.3. Infringements....................................................8
         4.4. Preservation of Marks............................................8
         4.5. Maintenance of Registration......................................8
         4.6. Future Registered Marks..........................................8
         4.7. Remedies.........................................................8

                                    ARTICLE V





                                                                         
                          SPECIAL PROVISIONS CONCERNING
PATENTS, COPYRIGHTS AND TRADE SECRETS..........................................9

         5.1. Additional Representations and Warranties........................9
         5.2. Licenses and Assignments.........................................9
         5.3. Infringements....................................................9
         5.4. Maintenance of Patents or Copyright.............................10
         5.5. Prosecution of Patent Applications..............................10
         5.6. Other Patents and Copyrights....................................10
         5.7. Remedies........................................................10

                                   ARTICLE VI

PROVISIONS CONCERNING ALL COLLATERAL..........................................10

         6.1. Protection of Collateral Agent's Security.......................10
         6.2. Warehouse Receipts Non-negotiable...............................11
         6.3. Further Actions.................................................11
         6.4. Financing Statements............................................11

                                   ARTICLE VII

REMEDIES UPON OCCURRENCE OF EVENT OF DEFAULT..................................11

         7.1. Remedies; Obtaining the Collateral Upon Default.................11
         7.2. Remedies; Disposition of the Collateral.........................13
         7.3. Waiver of Claims................................................13
         7.4. Application of Proceeds.........................................14
         7.5. Remedies Cumulative.............................................16
         7.6. Discontinuance of Proceedings...................................16

                                  ARTICLE VIII

INDEMNITY.....................................................................17

         8.1. Indemnity.......................................................17
         8.2. Indemnity Obligations Secured by Collateral; Survival...........18

                                    ARTICLE X






                                                                          
MISCELLANEOUS.................................................................23

         10.2.  Waiver; Amendment.............................................23
         10.3.  Obligations Absolute..........................................24
         10.4.  Successors and Assigns........................................24
         10.5.  Headings Descriptive..........................................24
         10.6.  Governing Law.................................................24
         10.7.  Assignor's Duties.............................................24
         10.8.  Termination; Release..........................................24
         10.9.  Counterparts..................................................25
         10.10. Severability..................................................25
         10.11. The Collateral Agent..........................................25
         10.12. Benefit of Agreement..........................................26
         10.13. Additional Assignors..........................................26

         ANNEX A  Schedule of Chief Executive Offices/Record Locations
         ANNEX B  Schedule of Inventory and Equipment Location
         ANNEX C  Schedule of Trade and Fictitious Names
         ANNEX D  Schedule of Marks
         ANNEX E  Schedule of Patent
         ANNEX F  Schedule of Copyrights
         ANNEX G  Form of Assignment of Security Interest in United States
                  Trademarks and Patents
         ANNEX H  Form of Assignment of Security Interest in United States
                  Copyrights




                                SECURITY AGREEMENT

            SECURITY AGREEMENT, dated as of December 3, 1998, made by each of
the undersigned assignors (each an "Assignor" and, together with any other
entity that becomes an assignor hereunder pursuant to Section 10.13 hereof, the
"Assignors") in favor of Bankers Trust Company, as Collateral Agent (the
"Collateral Agent"), for the benefit of the Secured Creditors (as defined
below). Except as otherwise defined herein, capitalized terms used herein and
defined in the Credit Agreement (as defined below) shall be used herein as so
defined.

                              W I T N E S S E T H :

            WHEREAS, TransDigm Holding Company ("Holdings"), TransDigm Inc. (the
"Borrower"), the lenders party from time to time party thereto (the "Lenders"),
Credit Suisse First Boston, as Syndication Agent and Co-Lead Arranger, and
Bankers Trust Company, as Administrative Agent and Co-Lead Arranger (together
with any successor administrative agent, the "Administrative Agent"), have
entered into a Credit Agreement, dated as of December 3, 1998, providing for the
making of Loans to, and the issuance of Letters of Credit for the account of,
the Borrower as contemplated therein (as amended, modified or supplemented from
time to time, the "Credit Agreement") (the Lenders, the Administrative Agent,
the Letter of Credit Issuers and the Collateral Agent are herein called the
"Lender Creditors");

            WHEREAS, the Borrower may at any time and from time to time enter
into one or more Interest Rate Protection Agreements or Other Hedging Agreements
with one or more Lenders or any affiliate thereof (each such Lender or
affiliate, even if the respective Lender subsequently ceases to be a Lender
under the Credit Agreement for any reason, together with such Lender's or
affiliate's successors and assigns, if any, collectively, the "Other Creditors",
and together with the Lender Creditors, are herein called the "Secured
Creditors");

            WHEREAS, pursuant to the Holdings Guaranty, Holdings has
unconditionally guaranteed to the Secured Creditors the payment when due of all
Guaranteed Obligations as described therein:

            WHEREAS, pursuant to the Subsidiaries Guaranty, each Subsidiary
Guarantor has jointly and severally guaranteed to the Secured Creditors the
payment when due of all Guaranteed Obligations as described therein;

            WHEREAS, it is a condition precedent to the making of Loans to, and
the issuance of Letters of Credit for the account of, the Borrower under the
Credit Agreement that each Assignor shall have executed and delivered to the
Collateral Agent this Agreement; and

                                                                          Page 2


            WHEREAS, each Assignor will obtain benefits from the incurrence of
Loans to, and the issuance of Letters of Credit for the account of, the Borrower
under the Credit Agreement and the entering into by the Borrower of Interest
Rate Protection Agreements or Other Hedging Agreements and, accordingly, each
Assignor desires to enter into this Agreement in order to satisfy the condition
described in the preceding paragraph;

            NOW, THEREFORE, in consideration of the benefits accruing to each
Assignor, the receipt and sufficiency of which are hereby acknowledged, each
Assignor hereby makes the following representations and warranties to the
Collateral Agent for the benefit of the Secured Creditors and hereby covenants
and agrees with the Collateral Agent for the benefit of the Secured Creditors as
follows:

                                    ARTICLE I

                               SECURITY INTERESTS

            1.1. Grant of Security Interests. (a) As security for the prompt and
complete payment and performance when due of all of its Obligations, each
Assignor does hereby assign and transfer unto the Collateral Agent, and does
hereby pledge and grant to the Collateral Agent for the benefit of the Secured
Creditors, a continuing security interest in, all of the right, title and
interest of such Assignor in, to and under all of the following, whether now
existing or hereafter from time to time acquired: (i) each and every Receivable,
(ii) all Contracts, together with all Contract Rights arising thereunder, (iii)
all Inventory, (iv) all Equipment, (v) all Marks, together with the
registrations and right to all renewals thereof, and the goodwill of the
business of such Assignor symbolized by the Marks, (vi) all Patents and
Copyrights, (vii) all computer programs of such Assignor and all intellectual
property rights therein and all other proprietary information of such Assignor,
including, but not limited to, Trade Secrets Rights, (viii) all other Goods,
General Intangibles, Investment Property, Permits, Chattel Paper, Documents,
Instruments and other assets (including cash), (ix) the Cash Collateral Account
and all monies, securities, instruments and other investments deposited or
required to be deposited in such Cash Collateral Account, (x) all other bank,
demand, time savings, cash management, passbook, certificates of deposit and
similar accounts maintained by such Assignor and all monies, securities,
instruments and other investments deposited or required to be deposited in any
of the foregoing accounts, and (xi) all Proceeds and products of any and all of
the foregoing (all of the above, collectively, the "Collateral").

            (b) The security interest of the Collateral Agent under this
Agreement extends to all Collateral of the kind which is the subject of this
Agreement which any Assignor may acquire at any time during the term of this
Agreement.

            1.2. Power of Attorney. Each Assignor hereby constitutes and
appoints the Collateral Agent its true and lawful attorney, irrevocably, with
full power after the occurrence of and during the continuance of an Event of
Default (in the name of such Assignor or otherwise) to act, require, demand,
receive, compound and give acquittance for any and all moneys and claims for
moneys due or to become due to such Assignor under or arising out of the
Collateral, to

                                                                          Page 3


endorse any checks or other instruments or orders in connection therewith and to
file any claims or take any action or institute any proceedings which the
Collateral Agent may deem to be necessary or advisable to protect the interests
of the Secured Creditors, which appointment as attorney is coupled with an
interest.

                                   ARTICLE II

                GENERAL REPRESENTATIONS, WARRANTIES AND COVENANTS

            Each Assignor represents, warrants and covenants, which
representations, warranties and covenants shall survive execution and delivery
of this Agreement, as follows:

            2.1. Necessary Filings. All filings, registrations and recordings
necessary or appropriate to create, preserve and perfect the security interest
granted by such Assignor to the Collateral Agent hereby in respect of the
Collateral have been accomplished (or within 10 days after the Initial Borrowing
Date will be accomplished) and the security interest granted to the Collateral
Agent pursuant to this Agreement in and to the Collateral creates a perfected
security interest therein prior to the rights of all other Persons therein and
subject to no other Liens (other than Permitted Liens) and is entitled to all
the rights, priorities and benefits afforded by the Uniform Commercial Code or
other relevant law as enacted in any relevant jurisdiction to perfected security
interests, in each case to the extent that the Collateral consists of the type
of property in which a security interest may be perfected by filing a financing
statement under the Uniform Commercial Code as enacted in any relevant
jurisdiction or in the United States Patent and Trademark Office or in the
United States Copyright Office.

            2.2. No Liens. Such Assignor is, and as to Collateral acquired by it
from time to time after the date hereof such Assignor will be, the owner of all
Collateral free from any Lien, security interest, encumbrance or other right,
title or interest of any Person (other than Permitted Liens), and such Assignor
shall defend the Collateral against all claims and demands of all Persons at any
time claiming the same or any interest therein adverse to the Collateral Agent.

            2.3. Other Financing Statements. As of the date hereof, there is no
financing statement (or similar statement or instrument of registration under
the law of any jurisdiction) covering or purporting to cover any interest of any
kind in the Collateral (other than financing statements filed in respect of
Permitted Liens), and so long as the Termination Date has not occurred, such
Assignor will not execute or authorize to be filed in any public office any
financing statement (or similar statement or instrument of registration under
the law of any jurisdiction) or statements relating to the Collateral, except
financing statements filed or to be filed in respect of and covering the
security interests granted hereby by such Assignor or in connection with
Permitted Liens.

            2.4. Chief Executive Office, Record Locations. The chief executive
office of such Assignor is located at the address indicated on Annex A hereto
for such Assignor. Such Assignor will not move its chief executive office except
to such new location as such Assignor may establish in accordance with the last
sentence of this Section 2.4. The originals of all

                                                                          Page 4


documents evidencing all Receivables and Contract Rights of such Assignor and
the only original books of account and records of such Assignor relating thereto
are, and will continue to be, kept at such chief executive office, at one or
more of the other locations set forth on Annex A hereto or at such new locations
as such Assignor may establish in accordance with the last sentence of this
Section 2.4. All Receivables and Contract Rights of such Assignor are, and will
continue to be, maintained at, and controlled and directed (including, without
limitation, for general accounting purposes) from, the office locations
described above or such new location established in accordance with the last
sentence of this Section 2.4. No Assignor shall establish new locations for such
offices until (i) it shall have given to the Collateral Agent not less than 15
days' prior written notice of its intention to do so, clearly describing such
new location and providing such other information in connection therewith as the
Collateral Agent may reasonably request, and (ii) with respect to such new
location, it shall have taken all action reasonably satisfactory to the
Collateral Agent to maintain the security interest of the Collateral Agent in
the Collateral intended to be granted hereby at all times fully perfected and in
full force and effect.

            2.5. Location of Inventory and Equipment. All Inventory and
Equipment held on the date hereof by each Assignor is located at one of the
locations shown on Annex B hereto for such Assignor. Each Assignor agrees that
all Inventory and Equipment now held or subsequently acquired by it shall be
kept at (or shall be in transport to) any one of the locations shown on Annex B
hereto, or such new location as such Assignor may establish in accordance with
the last sentence of this Section 2.5. Any Assignor may establish a new location
for Inventory and Equipment only if (i) it shall have given to the Collateral
Agent not less than 15 days' prior written notice of its intention so to do,
clearly describing such new location and providing such other information in
connection therewith as the Collateral Agent may request and (ii) with respect
to such new location, it shall have taken all action reasonably satisfactory to
the Collateral Agent to maintain the security interest of the Collateral Agent
in the Collateral intended to be granted hereby at all times fully perfected and
in full force and effect.

            2.6. Recourse. This Agreement is made with full recourse to each
Assignor (including, without limitation, with full recourse to all assets of
such Assignor) and pursuant to and upon all the warranties, representations,
covenants and agreements on the part of such Assignor contained herein, in the
other Secured Debt Agreements and otherwise in writing in connection herewith or
therewith.

            2.7. Trade Names; Change of Name. No Assignor has or operates in any
jurisdiction under, or in the preceding five years has had or has operated in
any jurisdiction under, any trade names, fictitious names or other names except
its legal name and such other trade or fictitious names as are listed on Annex C
hereto for such Assignor. No Assignor shall change its legal name or assume or
operate in any jurisdiction under any trade, fictitious or other name except
those names listed on Annex C hereto for such Assignor and new names established
in accordance with the last sentence of this Section 2.7. No Assignor shall
assume or operate in any jurisdiction under any new trade, fictitious or other
name until (i) it shall have given to the Collateral Agent not less than 15
days' prior written notice of its intention so to do, clearly describing such
new name and the jurisdictions in which such new name shall be used and
providing such other information in connection therewith as the Collateral Agent
may reasonably

                                                                          Page 5


request and (ii) with respect to such new name, it shall have taken all action
reasonably requested by the Collateral Agent to maintain the security interest
of the Collateral Agent in the Collateral intended to be granted hereby at all
times fully perfected and in full force and effect.

                                   ARTICLE III

                   SPECIAL PROVISIONS CONCERNING RECEIVABLES;
                   CONTRACT RIGHTS; INSTRUMENTS; CHATTEL PAPER

            3.1. Additional Representations and Warranties. As of the time when
each of its Receivables arises, each Assignor shall be deemed to have
represented and warranted that such Receivable, and all records, papers and
documents relating thereto (if any) are what they purport to be.

            3.2. Maintenance of Records. Each Assignor will keep and maintain at
its own cost and expense accurate records of its Receivables and Contracts,
including, but not limited to, originals of all documentation (including each
Contract) with respect thereto, records of all payments received, all credits
granted thereon, all merchandise returned and all other dealings therewith, and
such Assignor will make the same available on such Assignor's premises to the
Collateral Agent for inspection, at such Assignor's own cost and expense, at any
and all reasonable times upon prior notice to such Assignor. Upon the occurrence
and during the continuance of an Event of Default and at the request of the
Collateral Agent, such Assignor shall, at its own cost and expense, deliver all
tangible evidence of its Receivables and Contract Rights (including, without
limitation, all documents evidencing the Receivables and all Contracts) and such
books and records to the Collateral Agent or to its representatives (copies of
which evidence and books and records may be retained by such Assignor). Upon the
occurrence and during the continuance of an Event of Default and if the
Collateral Agent so directs, such Assignor shall legend, in form and manner
satisfactory to the Collateral Agent, the Receivables and the Contracts, as well
as books, records and documents (if any) of such Assignor evidencing or
pertaining to such Receivables and Contracts with an appropriate reference to
the fact that such Receivables and Contracts have been assigned to the
Collateral Agent and that the Collateral Agent has a security interest therein.

            3.3. Direction to Account Debtors; Contracting Parties; etc. Upon
the occurrence and during the continuance of an Event of Default, if the
Collateral Agent so directs any Assignor, such Assignor agrees (x) to cause all
payments on account of the Receivables and Contracts to be made directly to the
Cash Collateral Account, (y) that the Collateral Agent may, at its option,
directly notify the obligors with respect to any Receivables and/or under any
Contracts to make payments with respect thereto as provided in the preceding
clause (x), and (z) that the Collateral Agent may enforce collection of any such
Receivables and Contracts and may adjust, settle or compromise the amount of
payment thereof, in the same manner and to the same extent as such Assignor.
Without notice to or assent by any Assignor, the Collateral Agent may apply any
or all amounts then in, or thereafter deposited in, the Cash Collateral Account
which application shall be effected in the manner provided in Section 7.4 of
this Agreement. The costs and expenses (including reasonable attorneys' fees) of
collection, whether incurred by an

                                                                          Page 6


Assignor or the Collateral Agent, shall be borne by the relevant Assignor. The
Collateral Agent shall deliver a copy of each notice referred to in the
preceding clause (y) to the relevant Assignor, provided, that the failure by the
Collateral Agent to so notify such Assignor shall not affect the effectiveness
of such notice or the other rights of the Collateral Agent created by this
Section 3.3.

            3.4. Modification of Terms; etc. Except in accordance with such
Assignor's ordinary course of business and consistent with reasonable business
judgment, no Assignor shall rescind or cancel any indebtedness evidenced by any
Receivable or under any Contract, or modify any term thereof or make any
adjustment with respect thereto, or extend or renew the same, or compromise or
settle any material dispute, claim, suit or legal proceeding relating thereto,
or sell any Receivable or Contract, or interest therein, without the prior
written consent of the Collateral Agent. No Assignor will do anything to impair
the rights of the Collateral Agent in the Receivables or Contracts.

            3.5. Collection. Each Assignor shall endeavor in accordance with
reasonable business practices to cause to be collected from the account debtor
named in each of its Receivables or obligor under any Contract, as and when due
(including, without limitation, amounts which are delinquent, such amounts to be
collected in accordance with generally accepted lawful collection procedures)
any and all amounts owing under or on account of such Receivable or Contract,
and apply forthwith upon receipt thereof all such amounts as are so collected to
the outstanding balance of such Receivable or under such Contract, except as
otherwise directed by the Collateral Agent after the occurrence and during the
continuation of an Event of Default, any Assignor may allow in the ordinary
course of business as adjustments to amounts owing under its Receivables and
Contracts (i) an extension or renewal of the time or times of payment, or
settlement for less than the total unpaid balance, which such Assignor finds
appropriate in accordance with reasonable business judgment and (ii) a refund or
credit due as a result of returned or damaged merchandise or improperly
performed services or for other reasons which such Assignor finds appropriate in
accordance with reasonable business judgment. The reasonable costs and expenses
(including, without limitation, reasonable attorneys' fees) of collection,
whether incurred by an Assignor or the Collateral Agent, shall be borne by the
relevant Assignor.

            3.6. Instruments. If any Assignor owns or acquires any Instrument
constituting Collateral (other than checks and other payment instruments
received and collected in the ordinary course of business), such Assignor will
within 10 Business Days notify the Collateral Agent thereof, and upon request by
the Collateral Agent will promptly deliver such Instrument to the Collateral
Agent appropriately endorsed to the order of the Collateral Agent as further
security hereunder.

            3.7. Assignors Remain Liable Under Receivables. Anything herein to
the contrary notwithstanding, the Assignors shall remain liable under each of
the Receivables to observe and perform all of the conditions and obligations to
be observed and performed by it thereunder, all in accordance with the terms of
any agreement giving rise to such Receivables. Neither the Collateral Agent nor
any other Secured Creditor shall have any obligation or liability under any
Receivable (or any agreement giving rise thereto) by reason of or arising out of
this

                                                                          Page 7


Agreement or the receipt by the Collateral Agent or any other Secured Creditor
of any payment relating to such Receivable pursuant hereto, nor shall the
Collateral Agent or any other Secured Creditor be obligated in any manner to
perform any of the obligations of any Assignor under or pursuant to any
Receivable (or any agreement giving rise thereto), to make any payment, to make
any inquiry as to the nature or the sufficiency of any payment received by them
or as to the sufficiency of any performance by any party under any Receivable
(or any agreement giving rise thereto), to present or file any claim, to take
any action to enforce any performance or to collect the payment of any amounts
which may have been assigned to them or to which they may be entitled at any
time or times.

            3.8. Assignors Remain Liable Under Contracts. Anything herein to the
contrary notwithstanding, the Assignors shall remain liable under each of the
Contracts to observe and perform all of the conditions and obligations to be
observed and performed by them thereunder, all in accordance with and pursuant
to the terms and provisions of each Contract. Neither the Collateral Agent nor
any other Secured Creditor shall have any obligation or liability under any
Contract by reason of or arising out of this Agreement or the receipt by the
Collateral Agent or any other Secured Creditor of any payment relating to such
contract pursuant hereto, nor shall the Collateral Agent or any other Secured
Creditor be obligated in any manner to perform any of the obligations of any
Assignor under or pursuant to any Contract, to make any payment, to make any
inquiry as to the nature or the sufficiency of any performance by any party
under any Contract, to present or file any claim, to take any action to enforce
any performance or to collect the payment of any amounts which may have been
assigned to them or to which they may be entitled at any time or times.

            3.9. Further Actions. Each Assignor will, at its own expense, make,
execute, endorse, acknowledge, file and/or deliver to the Collateral Agent from
time to time such vouchers, invoices, schedules, confirmatory assignments,
conveyances, financing statements, transfer endorsements, certificates, reports
and other assurances or instruments and take such further steps relating to its
Receivables, Contracts, Instruments and other property or rights covered by the
security interest hereby granted, as the Collateral Agent may reasonably
require.

                                   ARTICLE IV

                    SPECIAL PROVISIONS CONCERNING TRADEMARKS

            4.1. Additional Representations and Warranties. Each Assignor
represents and warrants that it is the true and lawful owner of or otherwise has
the right to use the registered Marks listed in Annex D hereto for such Assignor
and that said listed Marks include all United States marks and applications for
United States marks registered in the United States Patent and Trademark Office
that such Assignor owns or uses in connection with its business as of the date
hereof. Each Assignor represents and warrants that it owns, is licensed to use
or otherwise has the right to use, all Marks that it uses. Each Assignor further
warrants that it has no knowledge of any third party claim that any aspect of
such Assignor's present or contemplated business operations infringes or will
infringe any trademark, service mark or trade name other than as could not,
either individually or in the aggregate, reasonably be expected to have a
Material

                                                                          Page 8


Adverse Effect. Each Assignor represents and warrants that it is the true and
lawful owner of or otherwise has the right to use all U.S. trademark
registrations and applications listed in Annex D hereto and that said
registrations are valid, subsisting, have not been cancelled and that such
Assignor is not aware of any third-party claim that any of said registrations is
invalid or unenforceable, or is not aware that there is any reason that any of
said registrations is invalid or unenforceable, or is not aware that there is
any reason that any of said applications will not pass to registration other
than as could not, either individually or in the aggregate, reasonably be
expected to have a Material Adverse Effect. Each Assignor hereby grants to the
Collateral Agent an absolute power of attorney to sign, upon the occurrence and
during the continuance of an Event of Default, any document which may be
required by the United States Patent and Trademark Office in order to effect an
absolute assignment of all right, title and interest in each Mark, and record
the same.

            4.2. Licenses and Assignments. Except as otherwise permitted by the
Secured Debt Agreements, each Assignor hereby agrees not to divest itself of any
right under any Mark absent prior written approval of the Collateral Agent.

            4.3. Infringements. Each Assignor agrees, promptly upon learning
thereof, to notify the Collateral Agent in writing of the name and address of,
and to furnish such pertinent information that may be available with respect to,
any party who such Assignor believes is infringing or diluting or otherwise
violating any of such Assignor's rights in and to any Mark, or with respect to
any party claiming that such Assignor's use of any Mark violates in any material
respect any property right of that party. Each Assignor further agrees to
prosecute in accordance with reasonable business practices any Person infringing
any Mark in any manner that could reasonably be expected to have a Material
Adverse Effect.

            4.4. Preservation of Marks. Each Assignor agrees to use its Marks in
interstate commerce during the time in which this Agreement is in effect and to
take all such other actions as are necessary to preserve such Marks as
trademarks or service marks under the laws of the United States.

            4.5. Maintenance of Registration. Each Assignor shall, at its own
expense, diligently process all documents required to maintain trademark
registrations, including but not limited to affidavits of use and applications
for renewals of registration in the United States Patent and Trademark Office
for all of its significant registered Marks, and shall pay all fees and
disbursements in connection therewith and shall not abandon any such filing of
affidavit of use or any such application of renewal prior to the exhaustion of
all administrative and judicial remedies without prior written consent of the
Collateral Agent.

            4.6. Future Registered Marks. If any Mark registration is issued
hereafter to any Assignor as a result of any application now or hereafter
pending before the United States Patent and Trademark Office, within 30 days of
receipt of such certificate, such Assignor shall deliver to the Collateral Agent
a copy of such certificate, and an assignment for security in such Mark, to the
Collateral Agent and at the expense of such Assignor, confirming the assignment
for security in such Mark to the Collateral Agent hereunder, the form of such
security to be substantially the

                                                                          Page 9


same as the form hereof or in such other form as may be reasonably satisfactory
to the Collateral Agent.

            4.7. Remedies. If an Event of Default shall occur and be continuing,
the Collateral Agent may, by written notice to the relevant Assignor, take any
or all of the following actions: (i) declare the entire right, title and
interest of such Assignor in and to each of the Marks, together with all
trademark rights and rights of protection to the same, vested in the Collateral
Agent for the benefit of the Secured Creditors, in which event such rights,
title and interest shall immediately vest, in the Collateral Agent for the
benefit of the Secured Creditors, and the Collateral Agent shall be entitled to
exercise the power of attorney referred to in Section 4.1 hereof to execute,
cause to be acknowledged and notarized and record said absolute assignment with
the applicable agency; (ii) take and use or sell the Marks and the goodwill of
such Assignor's business symbolized by the Marks and the right to carry on the
business and use the assets of such Assignor in connection with which the Marks
have been used; and (iii) direct such Assignor to refrain, in which event such
Assignor shall refrain, from using the Marks in any manner whatsoever, directly
or indirectly, and such Assignor shall execute such further documents that the
Collateral Agent may reasonably request to further confirm this and to transfer
ownership of the Marks and registrations and any pending trademark application
in the United States Patent and Trademark Office to the Collateral Agent.

                                    ARTICLE V

                          SPECIAL PROVISIONS CONCERNING
                      PATENTS, COPYRIGHTS AND TRADE SECRETS

            5.1. Additional Representations and Warranties. Each Assignor
represents and warrants that it is the true and lawful owner of all rights in
(i) all United States trade secrets and proprietary information necessary to
operate the business of the Assignor (the "Trade Secret Rights"), (ii) the
Patents listed in Annex E hereto for such Assignor and that said Patents include
all the United States patents and applications for United States patents that
such Assignor owns as of the date hereof and (iii) the Copyrights listed in
Annex F hereto for such Assignor and that said Copyrights constitute all the
United States copyrights registered with the United States Copyright Office and
applications to United States copyrights that such Assignor owns as of the date
hereof. Each Assignor further warrants that it has no knowledge of any third
party claim that any aspect of such Assignor's present or contemplated business
operations infringes or will infringe any patent or such Assignor has
misappropriated any trade secret or proprietary information which, either
individually or in the aggregate, could reasonably be expected to have a
Material Adverse Effect. Each Assignor hereby grants to the Collateral Agent an
absolute power of attorney to sign, upon the occurrence and during the
continuance of any Event of Default, any document which may be required by the
United States Patent and Trademark Office in order to effect an absolute
assignment of all right, title and interest in each Patent, and to record the
same.

                                                                         Page 10


            5.2. Licenses and Assignments. Except as otherwise permitted by the
Secured Debt Agreements, each Assignor hereby agrees not to divest itself of any
right under any Patent or Copyright acquired after the date hereof absent prior
written approval of the Collateral Agent.

            5.3. Infringements. Each Assignor agrees, promptly upon learning
thereof, to furnish the Collateral Agent in writing with all pertinent
information available to such Assignor with respect to any infringement,
contributing infringement or active inducement to infringe in any Patent or
Copyright or to any claim that the practice of any Patent or use of any
Copyright violates any property right of a third party, or with respect to any
misappropriation of any Trade Secret Right or any claim that practice of any
Trade Secret Right violates any property right of a third party in any manner
which, either individually or in the aggregate, could reasonably be expected to
have a Material Adverse Effect. Each Assignor further agrees, absent direction
of the Collateral Agent to the contrary, to diligently prosecute any Person
infringing any Patent or Copyright or any Person misappropriating any Trade
Secret Right in accordance with such Assignor's reasonable business judgment.

            5.4. Maintenance of Patents or Copyright. At its own expense, each
Assignor shall make timely payment of all post-issuance fees required pursuant
to 35 U.S.C. ss. 41 to maintain in force its rights under each Patent or
Copyright, absent prior written consent of the Collateral Agent.

            5.5. Prosecution of Patent Applications. At its own expense, each
Assignor shall diligently prosecute all significant applications for (i) United
States Patents listed in Annex E hereto and (ii) Copyrights listed on Annex F
hereto, in each case for such Assignor and shall not abandon any such
application prior to exhaustion of all administrative and judicial remedies,
absent written consent of the Collateral Agent.

            5.6. Other Patents and Copyrights. Within 30 days of the acquisition
or issuance of a United States Patent, registration of a Copyright, or
acquisition of a registered Copyright, or of filing of an application for a
United States Patent or Copyright, the relevant Assignor shall deliver to the
Collateral Agent a copy of said Copyright or certificate or registration of, or
application therefor, said Patents, as the case may be, with an assignment for
security as to such Patent or Copyright, as the case may be, to the Collateral
Agent and at the expense of such Assignor, confirming the assignment for
security, the form of such assignment for security to be substantially the same
as the form hereof or in such other form as may be reasonably satisfactory to
the Collateral Agent.

            5.7. Remedies. If an Event of Default shall occur and be continuing,
the Collateral Agent may by written notice to the relevant Assignor, take any or
all of the following actions: (i) declare the entire right, title, and interest
of such Assignor in each of the Patents and Copyrights vested in the Collateral
Agent for the benefit of the Secured Creditors, in which event such right,
title, and interest shall immediately vest in the Collateral Agent for the
benefit of the Secured Creditors, in which case the Collateral Agent shall be
entitled to exercise the power of attorney referred to in Section 5.1 hereof to
execute, cause to be acknowledged and notarized and to record said absolute
assignment with the applicable agency; (ii) take and practice or sell the

                                                                         Page 11


Patents and Copyrights; and (iii) direct such Assignor to refrain, in which
event such Assignor shall refrain, from practicing the Patents and using the
Copyrights directly or indirectly, and such Assignor shall execute such further
documents as the Collateral Agent may reasonably request further to confirm this
and to transfer ownership of the Patents and Copyrights to the Collateral Agent
for the benefit of the Secured Creditors.

                                   ARTICLE VI

                      PROVISIONS CONCERNING ALL COLLATERAL

            6.1. Protection of Collateral Agent's Security. Each Assignor will
do nothing to impair the rights of the Collateral Agent in the Collateral. Each
Assignor will at all times keep its Inventory and Equipment insured in favor of
the Collateral Agent, at such Assignor's own expense to the extent and in the
manner provided in the Credit Agreement. Except to the extent otherwise
permitted to be retained by such Assignor or applied by such Assignor pursuant
to the terms of the Credit Agreement, the Collateral Agent shall, at the time
any proceeds of such insurance are distributed to the Secured Creditors, apply
such proceeds in accordance with Section 7.4 hereof. Each Assignor assumes all
liability and responsibility in connection with the Collateral acquired by it
and the liability of such Assignor to pay the Obligations shall in no way be
affected or diminished by reason of the fact that such Collateral may be lost,
destroyed, stolen, damaged or for any reason whatsoever unavailable to such
Assignor.

            6.2. Warehouse Receipts Non-negotiable. Each Assignor agrees that if
any warehouse receipt or receipt in the nature of a warehouse receipt is issued
with respect to any of its Inventory, such Assignor shall request that such
warehouse receipt or receipt in the nature thereof shall not be "negotiable" (as
such term is used in Section 7-104 of the Uniform Commercial Code as in effect
in any relevant jurisdiction or under other relevant law).

            6.3. Further Actions. Each Assignor will, at its own expense and
upon the request of the Collateral Agent, make, execute, endorse, acknowledge,
file and/or deliver to the Collateral Agent from time to time such lists,
descriptions and designations of its Collateral, warehouse receipts, receipts in
the nature of warehouse receipts, bills of lading, documents of title, vouchers,
invoices, schedules, confirmatory assignments, conveyances, financing
statements, transfer endorsements, certificates, reports and other assurances or
instruments and take such further steps relating to the Collateral and other
property or rights covered by the security interest hereby granted, which the
Collateral Agent deems reasonably appropriate or advisable to perfect, preserve
or protect its security interest in the Collateral.

            6.4. Financing Statements. Each Assignor agrees to execute and
deliver to the Collateral Agent such financing statements, in form reasonably
acceptable to the Collateral Agent, as the Collateral Agent may from time to
time reasonably request or as are necessary or desirable in the opinion of the
Collateral Agent to establish and maintain a valid, enforceable, first priority
perfected security interest in the Collateral as provided herein and the other
rights and security contemplated hereby all in accordance with the UCC as
enacted in any and all relevant jurisdictions or any other relevant law. Each
Assignor will pay any applicable filing

                                                                         Page 12


fees, recordation taxes and related expenses relating to its Collateral. Each
Assignor hereby authorizes the Collateral Agent to file any such financing
statements without the signature of such Assignor where permitted by law.

                                   ARTICLE VII

                  REMEDIES UPON OCCURRENCE OF EVENT OF DEFAULT

            7.1. Remedies; Obtaining the Collateral Upon Default. Each Assignor
agrees that, if any Event of Default shall have occurred and be continuing, then
and in every such case, the Collateral Agent, in addition to any rights now or
hereafter existing under applicable law, shall have all rights as a secured
creditor under any UCC, and such additional rights and remedies to which a
secured creditor is entitled under the laws in effect, in all relevant
jurisdictions and may:

            (i) personally, or by agents or attorneys, immediately take
possession of the Collateral or any part thereof, from such Assignor or any
other Person who then has possession of any part thereof with or without notice
or process of law, and for that purpose may enter upon such Assignor's premises
where any of the Collateral is located and remove the same and use in connection
with such removal any and all services, supplies, aids and other facilities of
such Assignor;

            (ii) instruct the obligor or obligors on any agreement, instrument
or other obligation (including, without limitation, the Receivables and the
Contracts) constituting the Collateral to make any payment required by the terms
of such agreement, instrument or other obligation directly to the Collateral
Agent and may exercise any and all remedies of such Assignor in respect of such
Collateral;

            (iii) withdraw all monies, securities and instruments in the Cash
Collateral Account for application to the Obligations in accordance with Section
7.4 hereof;

            (iv) sell, assign or otherwise liquidate any or all of the
Collateral or any part thereof in accordance with Section 7.2 hereof, or direct
the relevant Assignor to sell, assign or otherwise liquidate any or all of the
Collateral or any part thereof, and, in each case, take possession of the
proceeds of any such sale or liquidation;

            (v) take possession of the Collateral or any part thereof, by
directing the relevant Assignor in writing to deliver the same to the Collateral
Agent at any place or places designated by the Collateral Agent, in which event
such Assignor shall at its own expense:

                  (x) forthwith cause the same to be moved to the place or
            places so designated by the Collateral Agent and there delivered to
            the Collateral Agent;

                  (y) store and keep any Collateral so delivered to the
            Collateral Agent at such place or places pending further action by
            the Collateral Agent as provided in Section 7.2 hereof; and

                                                                         Page 13


                  (z) while the Collateral shall be so stored and kept, provide
            such guards and maintenance services as shall be necessary to
            protect the same and to preserve and maintain them in good
            condition; and

            (vi) license or sublicense, whether on an exclusive or nonexclusive
basis, any Marks, Patents or Copyrights included in the Collateral for such term
and on such conditions and in such manner as the Collateral Agent shall in its
sole judgment determine;

it being understood that each Assignor's obligation so to deliver the Collateral
is of the essence of this Agreement and that, accordingly, upon application to a
court of equity having jurisdiction, the Collateral Agent shall be entitled to a
decree requiring specific performance by such Assignor of said obligation. By
accepting the benefits of this Agreement, the Secured Creditors agree that this
Agreement may be enforced only by the action of the Collateral Agent acting upon
the instructions of the Required Secured Creditors and that no other Secured
Creditor shall have any right individually to seek to enforce this Agreement or
to realize upon the security to be granted hereby, it being understood and
agreed that such rights and remedies may be exercised by the Collateral Agent
for the benefit of the Secured Creditors upon the terms of this Agreement and
the Credit Agreement.

            7.2. Remedies; Disposition of the Collateral. If any Event of
Default shall have occurred and be continuing, then any Collateral repossessed
by the Collateral Agent under or pursuant to Section 7.1 hereof and any other
Collateral whether or not so repossessed by the Collateral Agent, may be sold,
assigned, leased or otherwise disposed of under one or more contracts or as an
entirety, and without the necessity of gathering at the place of sale the
property to be sold, and in general in such manner, at such time or times, at
such place or places and on such terms as the Collateral Agent may, in
compliance with any mandatory requirements of applicable law, determine to be
commercially reasonable. Any of the Collateral may be sold, leased or otherwise
disposed of, in the condition in which the same existed when taken by the
Collateral Agent or after any overhaul or repair at the expense of the relevant
Assignor which the Collateral Agent shall determine to be commercially
reasonable. Any such disposition which shall be a private sale or other private
proceedings permitted by such requirements shall be made upon not less than 10
days' prior written notice to the relevant Assignor specifying the time at which
such disposition is to be made and the intended sale price or other
consideration therefor, and shall be subject, for the 10 days after the giving
of such notice, to the right of the relevant Assignor or any nominee of such
Assignor to acquire the Collateral involved at a price or for such other
consideration at least equal to the intended sale price or other consideration
so specified. Any such disposition which shall be a public sale permitted by
such requirements shall be made upon not less than 10 days' prior written notice
to the relevant Assignor specifying the time and place of such sale and, in the
absence of applicable requirements of law, shall be by public auction (which
may, at the Collateral Agent's option, be subject to reserve), after publication
of notice of such auction (where required by applicable law) not less than 10
days prior thereto. The Collateral Agent may, without notice or publication,
adjourn any public or private sale or cause the same to be adjourned from time
to time by announcement at the time and place fixed for the sale, and such sale
may be made at any time or place to which the sale may be so adjourned. To the
extent permitted by any such requirement of law, the Collateral Agent may bid
for and become the purchaser of the Collateral or any item thereof, offered for

                                                                         Page 14


sale in accordance with this Section without accountability to the relevant
Assignor. If, under mandatory requirements of applicable law, the Collateral
Agent shall be required to make disposition of the Collateral within a period of
time which does not permit the giving of notice to the relevant Assignor as
hereinabove specified, the Collateral Agent need give such Assignor only such
notice of disposition as shall be reasonably practicable in view of such
mandatory requirements of applicable law. Each Assignor agrees to do or cause to
be done all such other acts and things as may be reasonably necessary to make
such sale or sales of all or any portion of the Collateral valid and binding and
in compliance with any and all applicable laws, regulations, orders, writs,
injunctions, decrees or awards of any and all courts, arbitrators or
governmental instrumentalities, domestic or foreign, having jurisdiction over
any such sale or sales, all at such Assignor's expense.

            7.3. Waiver of Claims. Except as otherwise provided in this
Agreement, EACH ASSIGNOR HEREBY WAIVES, TO THE EXTENT PERMITTED BY APPLICABLE
LAW, NOTICE AND JUDICIAL HEARING IN CONNECTION WITH THE COLLATERAL AGENT'S
TAKING POSSESSION OR THE COLLATERAL AGENT'S DISPOSITION OF ANY OF THE
COLLATERAL, INCLUDING, WITHOUT LIMITATION, ANY AND ALL PRIOR NOTICE AND HEARING
FOR ANY PREJUDGMENT REMEDY OR REMEDIES, and each Assignor hereby further waives,
to the extent permitted by law:

            (i) all damages occasioned by such taking of possession except any
damages which are the direct result of the Collateral Agent's gross negligence
or willful misconduct;

            (ii) all other requirements as to the time, place and terms of sale
or other requirements with respect to the enforcement of the Collateral Agent's
rights hereunder; and

            (iii) all rights of redemption, appraisement, valuation, stay,
extension or moratorium now or hereafter in force under any applicable law in
order to prevent or delay the enforcement of this Agreement or the absolute sale
of the Collateral or any portion thereof, and each Assignor, for itself and all
who may claim under it, insofar as it or they now or hereafter lawfully may,
hereby waives the benefit of all such laws.

Any sale of, or the grant of options to purchase, or any other realization upon,
any Collateral shall operate to divest all right, title, interest, claim and
demand, either at law or in equity, of the relevant Assignor therein and
thereto, and shall be a perpetual bar both at law and in equity against such
Assignor and against any and all Persons claiming or attempting to claim the
Collateral so sold, optioned or realized upon, or any part thereof, from,
through and under such Assignor.

            7.4. Application of Proceeds. (a) All moneys collected by the
Collateral Agent (or, to the extent the Pledge Agreement or any Additional
Security Document require proceeds of collateral under such Security Document to
be applied in accordance with the provisions of this Agreement, the Pledgee or
Collateral Agent under such other Security Document) upon any sale or other
disposition of the Collateral, together with all other moneys received by the
Collateral Agent hereunder, shall be applied as follows.

                                                                         Page 15


            (i) first, to the payment of all amounts owing the Collateral Agent
of the type described in clauses (iii) and (iv) of the definition of
"Obligations";

            (ii) second, to the extent proceeds remain after the application
pursuant to the preceding clause (i), an amount equal to the outstanding Primary
Obligations shall be paid to the Secured Creditors as provided in Section 7.4(e)
hereof, with each Secured Creditor receiving an amount equal to such outstanding
Primary Obligations or, if the proceeds are insufficient to pay in full all such
Primary Obligations, its Pro Rata Share of the amount remaining to be
distributed;

            (iii) third, to the extent proceeds remain after the application
pursuant to the preceding clauses (i) and (ii), an amount equal to the
outstanding Secondary Obligations shall be paid to the Secured Creditors as
provided in Section 7.4(e) hereof, with each Secured Creditor receiving an
amount equal to its outstanding Secondary Obligations or, if the proceeds are
insufficient to pay in full all such Secondary Obligations, its Pro Rata Share
of the amount remaining to be distributed; and

            (iv) fourth, to the extent proceeds remain after the application
pursuant to the preceding clauses (i) through (iii), inclusive, and following
the termination of this Agreement pursuant to Section 10.8(a) hereof, to the
relevant Assignor or to whomever may be lawfully entitled to receive such
surplus.

            (b) For purposes of this Agreement (x) "Pro Rata Share" shall mean,
when calculating a Secured Creditor's portion of any distribution or amount,
that amount (expressed as a percentage) equal to a fraction the numerator of
which is the then unpaid amount of such Secured Creditor's Primary Obligations
or Secondary Obligations, as the case may be, and the denominator of which is
the then outstanding amount of all Primary Obligations or Secondary Obligations,
as the case may be, (y) "Primary Obligations" shall mean (i) in the case of the
Credit Document Obligations, all principal of, and interest on, all Loans, all
Unpaid Drawings and all Fees and (ii) in the case of the Other Obligations, all
amounts due under such Interest Rate Protection Agreements or Other Hedging
Agreements (other than indemnities, fees (including, without limitation,
attorneys' fees) and similar obligations and liabilities) and (z) "Secondary
Obligations" shall mean all Obligations other than Primary Obligations.

            (c) When payments to Secured Creditors are based upon their
respective Pro Rata Shares, the amounts received by such Secured Creditors
hereunder shall be applied (for purposes of making determinations under this
Section 7.4 only) (i) first, to their Primary Obligations and (ii) second, to
their Secondary Obligations. If any payment to any Secured Creditor of its Pro
Rata Share of any distribution would result in overpayment to such Secured
Creditor, such excess amount shall instead be distributed in respect of the
unpaid Primary Obligations or Secondary Obligations, as the case may be, of the
other Secured Creditors, with each Secured Creditor whose Primary Obligations or
Secondary Obligations, as the case may be, have not been paid in full to receive
an amount equal to such excess amount multiplied by a fraction the numerator of
which is the unpaid Primary Obligations or Secondary Obligations, as the case
may be, of such Secured Creditor and the denominator of which is the unpaid
Primary

                                                                         Page 16


Obligations or Secondary Obligations, as the case may be, of all Secured
Creditors entitled to such distribution.

            (d) Each of the Secured Creditors, by their acceptance of the
benefits hereof, agrees and acknowledges that if the Lender Creditors are to
receive a distribution on account of undrawn amounts with respect to Letters of
Credit issued under the Credit Agreement (which shall only occur after all
outstanding Loans and Unpaid Drawings with respect to such Letters of Credit
have been paid in full), such amounts shall be paid to the Administrative Agent
under the Credit Agreement and held by it, for the equal and ratable benefit of
the Lender Creditors, as cash security for the repayment of Obligations owing to
the Lender Creditors as such. If any amounts are held as cash security pursuant
to the immediately preceding sentence, then upon the termination of all
outstanding Letters of Credit, and after the application of all such cash
security to the repayment of all Obligations owing to the Lender Creditors after
giving effect to the termination of all such Letters of Credit, if there remains
any excess cash, such excess cash shall be returned by the Administrative Agent
to the Collateral Agent for distribution in accordance with Section 7.4(a)
hereof.

            (e) All payments required to be made hereunder shall be made (x) if
to the Lender Creditors, to the Administrative Agent under the Credit Agreement
for the account of the Lender Creditors, and (y) if to the Other Creditors, to
the trustee, paying agent or other similar representative (each a
"Representative") for the Other Creditors or, in the absence of such a
Representative, directly to the Other Creditors.

            (f) For purposes of applying payments received in accordance with
this Section 7.4, the Collateral Agent shall be entitled to rely upon (i) the
Administrative Agent under the Credit Agreement and (ii) the Representative for
the Other Creditors or, in the absence of such a Representative, upon the Other
Creditors for a determination (which the Administrative Agent, each
Representative for any Other Creditors and the Secured Creditors agree (or shall
agree) to provide upon request of the Collateral Agent) of the outstanding
Primary Obligations and Secondary Obligations owed to the Lender Creditors or
the Other Creditors, as the case may be. Unless it has actual knowledge
(including by way of written notice from a Lender Creditor or an Other Creditor)
to the contrary, the Administrative Agent and each Representative, in furnishing
information pursuant to the preceding sentence, and the Collateral Agent, in
acting hereunder, shall be entitled to assume that no Secondary Obligations are
outstanding. Unless it has actual knowledge (including by way of written notice
from an Other Creditor) to the contrary, the Collateral Agent, in acting
hereunder, shall be entitled to assume that no Interest Rate Protection
Agreements or Other Hedging Agreements are in existence.

            (g) It is understood that the Assignors shall remain jointly and
severally liable to the extent of any deficiency between the amount of the
proceeds of the Collateral and the aggregate amount of the Obligations.

            7.5. Remedies Cumulative. Each and every right, power and remedy
hereby specifically given to the Collateral Agent shall be in addition to every
other right, power and remedy specifically given under this Agreement, the other
Secured Debt Agreements or now or

                                                                         Page 17


hereafter existing at law, in equity or by statute and each and every right,
power and remedy whether specifically herein given or otherwise existing may be
exercised from time to time or simultaneously and as often and in such order as
may be deemed expedient by the Collateral Agent. All such rights, powers and
remedies shall be cumulative and the exercise or the beginning of the exercise
of one shall not be deemed a waiver of the right to exercise any other or
others. No delay or omission of the Collateral Agent in the exercise of any such
right, power or remedy and no renewal or extension of any of the Obligations
shall impair any such right, power or remedy or shall be construed to be a
waiver of any Default or Event of Default or an acquiescence therein. No notice
to or demand on any Assignor in any case shall entitle it to any other or
further notice or demand in similar or other circumstances or constitute a
waiver of any of the rights of the Collateral Agent to any other or further
action in any circumstances without notice or demand. In the event that the
Collateral Agent shall bring any suit to enforce any of its rights hereunder and
shall be entitled to judgment, then in such suit the Collateral Agent may
recover reasonable expenses, including reasonable attorneys' fees, and the
amounts thereof shall be included in such judgment.

            7.6. Discontinuance of Proceedings. In case the Collateral Agent
shall have instituted any proceeding to enforce any right, power or remedy under
this Agreement by foreclosure, sale, entry or otherwise, and such proceeding
shall have been discontinued or abandoned for any reason or shall have been
determined adversely to the Collateral Agent, then and in every such case the
relevant Assignor, the Collateral Agent and each holder of any of the
Obligations shall be restored to their former positions and rights hereunder
with respect to the Collateral subject to the security interest created under
this Agreement, and all rights, remedies and powers of the Collateral Agent
shall continue as if no such proceeding had been instituted.

                                  ARTICLE VIII

                                    INDEMNITY

            8.1. Indemnity. (a) Each Assignor jointly and severally agrees to
indemnify, reimburse and hold the Collateral Agent, each other Secured Creditor
and their respective successors, permitted assigns, employees, agents and
servants (hereinafter in this Section 8.1 referred to individually as
"Indemnitee," and collectively as "Indemnitees") harmless from any and all
liabilities, obligations, damages, injuries, penalties, claims, demands,
actions, suits, judgments and any and all costs, expenses or disbursements
(including reasonable attorneys' fees and expenses) (for the purposes of this
Section 8.1 the foregoing are collectively called "expenses") of whatsoever kind
and nature imposed on, asserted against or incurred by any of the Indemnitees in
any way relating to or arising out of this Agreement, any other Secured Debt
Agreement or any other document executed in connection herewith or therewith or
in any other way connected with the administration of the transactions
contemplated hereby or thereby or the enforcement of any of the terms of, or the
preservation of any rights under any thereof, or in any way relating to or
arising out of the manufacture, ownership, ordering, purchase, delivery,
control, acceptance, lease, financing, possession, operation, condition, sale,
return or other disposition, or use of the Collateral (including, without
limitation, latent or other defects, whether or not discoverable), the violation
of the laws of any country, state or other governmental body or

                                                                         Page 18


unit, any tort (including, without limitation, claims arising or imposed under
the doctrine of strict liability, or for or on account of injury to or the death
of any Person (including any Indemnitee), or property damage), or contract
claim; provided that no Indemnitee shall be indemnified pursuant to this Section
8.1(a) for losses, damages or liabilities to the extent caused by the gross
negligence or wilful misconduct of such Indemnitee. Each Assignor agrees that
upon written notice by any Indemnitee of the assertion of such a liability,
obligation, damage, injury, penalty, claim, demand, action, suit or judgment,
the relevant Assignor shall assume full responsibility for the defense thereof.
Each Indemnitee agrees to use its best efforts to promptly notify the relevant
Assignor of any such assertion of which such Indemnitee has knowledge.

            (b) Without limiting the application of Section 8.1(a) hereof, each
Assignor agrees, jointly and severally, to pay, or reimburse the Collateral
Agent for any and all reasonable fees, costs and expenses of whatever kind or
nature incurred in connection with the creation, preservation or protection of
the Collateral Agent's Liens on, and security interest in, the Collateral,
including, without limitation, all fees and taxes in connection with the
recording or filing of instruments and documents in public offices, payment or
discharge of any taxes or Liens upon or in respect of the Collateral, premiums
for insurance with respect to the Collateral and all other fees, costs and
expenses in connection with protecting, maintaining or preserving the Collateral
and the Collateral Agent's interest therein, whether through judicial
proceedings or otherwise, or in defending or prosecuting any actions, suits or
proceedings arising out of or relating to the Collateral.

            (c) Without limiting the application of Section 8.1(a) or (b)
hereof, each Assignor agrees, jointly and severally, to pay, indemnify and hold
each Indemnitee harmless from and against any loss, costs, damages and expenses
which such Indemnitee may suffer, expend or incur in consequence of or growing
out of any misrepresentation by any Assignor in this Agreement, any other
Secured Debt Agreement or in any writing contemplated by or made or delivered
pursuant to or in connection with this Agreement or any other Secured Debt
Agreement.

            (d) If and to the extent that the obligations of any Assignor under
this Section 8.1 are unenforceable for any reason, such Assignor hereby agrees
to make the maximum contribution to the payment and satisfaction of such
obligations which is permissible under applicable law.

            8.2. Indemnity Obligations Secured by Collateral; Survival. Any
amounts paid by any Indemnitee as to which such Indemnitee has the right to
reimbursement shall constitute Obligations secured by the Collateral. The
indemnity obligations of each Assignor contained in this Article VIII shall
continue in full force and effect notwithstanding the full payment of all of the
other Obligations and notwithstanding the full payment of all the Notes issued
under the Credit Agreement, the termination of all Interest Rate Protection
Agreements or Other Hedging Agreements and all Letters of Credit and the payment
of all other Obligations and notwithstanding the discharge thereof but shall not
thereafter be secured by any security interest granted hereby.

                                                                         Page 19


                                   ARTICLE IX

                                   DEFINITIONS

            The following terms shall have the meanings herein specified. Such
definitions shall be equally applicable to the singular and plural forms of the
terms defined.

            "Administrative Agent" shall have the meaning provided in the
recitals of this Agreement.

            "Agreement" shall mean this Security Agreement as the same may be
modified, supplemented or amended from time to time in accordance with its
terms.

            "Assignor" shall have the meaning provided in the first paragraph of
this Agreement.

            "Borrower" shall have the meaning provided in the recitals of this
Agreement.

            "Cash Collateral Account" shall mean a cash collateral account
maintained with, and in the sole dominion and control of, the Collateral Agent
for the benefit of the Secured Creditors.

            "Chattel Paper" shall have the meaning provided in the Uniform
Commercial Code as in effect on the date hereof in the State of New York.

            "Class" shall have the meaning provided in Section 10.2 of this
Agreement.

            "Collateral" shall have the meaning provided in Section 1.1(a) of
this Agreement.

            "Collateral Agent" shall have the meaning provided in the first
paragraph of this Agreement.

            "Contract Rights" shall mean all rights of any Assignor under each
Contract, including, without limitation, (i) any and all rights to receive and
demand payments under any or all Contracts, (ii) any and all rights to receive
and compel performance under any or all Contracts and (iii) any and all other
rights, interests and claims now existing or in the future arising in connection
with any or all Contracts.

            "Contracts" shall mean all contracts between any Assignor and one or
more additional parties (including, without limitation, any Interest Rate
Protection Agreements or Other Hedging Agreements and any partnership
agreements, joint venture agreements and limited liability company agreements),
but excluding any contract to the extent that the terms thereof prohibit (after
giving effect to any approvals or waivers) the assignment of, or granting a
security interest in, such contract (it being understood and agreed, however,
that notwithstanding the foregoing, all rights to payment for money due or to
become due pursuant to any such excluded contract shall be subject to the
security interests created by this Agreement).

                                                                         Page 20


            "Copyrights" shall mean any United States copyright owned by any
Assignor, including any registrations of any Copyrights, in the United States
Copyright Office or any foreign equivalent office, as well as any application
for a copyright registration now or hereafter made with the United States
Copyright Office or any foreign equivalent office by any Assignor.

            "Credit Agreement" shall have the meaning provided in the recitals
of this Agreement.

            "Credit Document Obligations" shall have the meaning provided in the
definition of "Obligations" in this Article IX.

            "Default" shall mean any event which, with notice or lapse of time,
or both, would constitute an Event of Default.

            "Documents" shall have the meaning provided in the Uniform
Commercial Code as in effect on the date hereof in the State of New York.

            "Equipment" shall mean any "equipment," as such term is defined in
the Uniform Commercial Code as in effect on the date hereof in the State of New
York, now or hereafter owned by any Assignor and, in any event, shall include,
but shall not be limited to, all machinery, equipment, furnishings, fixtures and
vehicles now or hereafter owned by any Assignor and any and all additions,
substitutions and replacements of any of the foregoing, wherever located,
together with all attachments, components, parts, equipment and accessories
installed thereon or affixed thereto.

            "Event of Default" shall mean any Event of Default under, and as
defined in, the Credit Agreement and shall in any event include, without
limitation, any payment default on any of the Other Obligations after the
expiration of any applicable grace period.

            "General Intangibles" shall have the meaning provided in the Uniform
Commercial Code as in effect on the date hereof in the State of New York (and
shall include all partnership interests and all limited liability company and
membership interests).

            "Goods" shall have the meaning provided in the Uniform Commercial
Code as in effect on the date hereof in the State of New York.

            "Indemnitee" shall have the meaning provided in Section 8.1 of this
Agreement.

            "Instrument" shall have the meaning provided in the Uniform
Commercial Code as in effect on the date hereof in the State of New York.

            "Inventory" shall mean merchandise, inventory and goods, and all
additions, substitutions and replacements thereof, wherever located, together
with all goods, supplies, incidentals, packaging materials, labels, materials
and any other items used or usable in manufacturing, processing, packaging or
shipping same, in all stages of production -- from raw materials through
work-in-process to finished goods -- and all products and proceeds of whatever

                                                                         Page 21


sort and wherever located and any portion thereof which may be returned,
rejected, reclaimed or repossessed by the Collateral Agent from any Assignor's
customers, and shall specifically include all "inventory" as such term is
defined in the Uniform Commercial Code as in effect on the date hereof in the
State of New York, now or hereafter owned by any Assignor.

            "Investment Property" shall have the meaning provided in the Uniform
Commercial Code as in effect on the date hereof in the State of New York.

            "Lender Creditors" shall have the meaning provided in the recitals
of this Agreement.

            "Lenders" shall have the meaning provided in the recitals of this
Agreement.

            "Liens" shall mean any security interest, mortgage, pledge, lien,
claim, charge, encumbrance, title retention agreement, lessor's interest in a
financing lease or analogous instrument, in, of, or on any Assignor's property.

            "Marks" shall mean all right, title and interest in and to any
trademarks, service marks and trade names now held or hereafter acquired by any
Assignor, including any registration of any trademarks and service marks in the
United States Patent and Trademark Office or in any equivalent foreign office
and any trade dress including logos and/or designs used by any Assignor.

            "Obligations" shall mean (i) the full and prompt payment when due
(whether at the stated maturity, by acceleration or otherwise) of all
obligations and indebtedness (including, without limitation, indemnities, Fees
and interest thereon) of each Assignor to the Lender Creditors, whether now
existing or hereafter incurred under, arising out of, or in connection with the
Credit Agreement and the other Credit Documents to which such Assignor is a
party (including, in the case of each Guarantor, all such obligations and
indebtedness of such Guarantor under any Guaranty to which it is a party) and
the due performance and compliance by such Assignor with all of the terms,
conditions and agreements contained in the Credit Agreement and in such other
Credit Documents (all such obligations and liabilities under this clause (i),
except to the extent consisting of obligations or indebtedness with respect to
Interest Rate Protection Agreements or Other Hedging Agreements, being herein
collectively called the "Credit Document Obligations"); (ii) the full and prompt
payment when due (whether at the stated maturity, by acceleration or otherwise)
of all obligations and liabilities owing by such Assignor to the Other Creditors
under, or with respect to (including by reason of any Guaranty to which such
Assignor is a party), any Interest Rate Protection Agreement or Other Hedging
Agreement, whether such Interest Rate Protection Agreement or Other Hedging
Agreement is now in existence or hereafter arising, and the due performance and
compliance by such Assignor with all of the terms, conditions and agreements
contained therein (all such obligations and liabilities described in this clause
(ii) being herein collectively called the "Other Obligations"); (iii) any and
all sums advanced by the Assignee in order to preserve the Collateral or
preserve its security interest in the Collateral; (iv) in the event of any
proceeding for the collection or enforcement of any indebtedness, obligations,
or liabilities of such Assignor referred to in

                                                                         Page 22


clauses (i) and (ii) above, after an Event of Default shall have occurred and be
continuing, the reasonable expenses of retaking, holding, preparing for sale or
lease, selling or otherwise disposing of or realizing on the Collateral, or of
any exercise by the Assignee of its rights hereunder, together with reasonable
attorneys' fees and court costs; and (v) all amounts paid by any Indemnitee as
to which such Indemnitee has the right to reimbursement under Section 8.1 of
this Agreement; it being acknowledged and agreed that the "Obligations" shall
include extensions of credit of the types described above, whether outstanding
on the date of this Agreement or extended from time to time after the date of
this Agreement.

            "Other Creditors" shall have the meaning provided in the recitals of
this Agreement.

            "Other Obligations" shall have the meaning provided in the
definition of "Obligations" in this Article IX.

            "Patents" shall mean any patent to which any Assignor now or
hereafter has title and any divisions or continuations thereof, as well as any
application for a patent now or hereafter made by any Assignor.

            "Primary Obligations" shall have the meaning provided in Section
7.4(b) of this Agreement.

            "Pro Rata Share" shall have the meaning provided in Section 7.4(b)
of this Agreement.

            "Proceeds" shall have the meaning provided in the Uniform Commercial
Code as in effect in the State of New York on the date hereof or under other
relevant law and, in any event, shall include, but not be limited to, (i) any
and all proceeds of any insurance, indemnity, warranty or guaranty payable to
the Collateral Agent or any Assignor from time to time with respect to any of
the Collateral, (ii) any and all payments (in any form whatsoever) made or due
and payable to any Assignor from time to time in connection with any
requisition, confiscation, condemnation, seizure or forfeiture of all or any
part of the Collateral by any governmental authority (or any person acting under
color of governmental authority) and (iii) any and all other amounts from time
to time paid or payable under or in connection with any of the Collateral.

            "Receivables" shall mean any "account" as such term is defined in
the Uniform Commercial Code as in effect on the date hereof in the State of New
York, now or hereafter owned by any Assignor and, in any event, shall include,
but shall not be limited to, all of such Assignor's rights to payment for goods
sold or leased or services performed by such Assignor, whether now in existence
or arising from time to time hereafter, including, without limitation, rights
evidenced by an account, note, contract, security agreement, chattel paper, or
other evidence of indebtedness or security, together with (a) all security
pledged, assigned, hypothecated or granted to or held by such Assignor to secure
the foregoing, (b) all of any Assignor's right, title and interest in and to any
goods, the sale of which gave rise thereto, (c) all guarantees, endorsements and
indemnifications on, or of, any of the foregoing, (d) all powers of attorney for
the execution of any evidence of indebtedness or security or other writing in
connection therewith, (e) all books, records, ledger cards,

                                                                         Page 23


and invoices relating thereto, (f) all evidences of the filing of financing
statements and other statements and the registration of other instruments in
connection therewith and amendments thereto, notices to other creditors or
secured parties, and certificates from filing or other registration officers,
(g) all credit information, reports and memoranda relating thereto and (h) all
other writings related in any way to the foregoing.

            "Representative shall have the meaning provided in Section 7.4(e) of
this Agreement.

            "Required Secured Creditors" shall mean (i) the Required Lenders
(or, to the extent required by Section 13.12 of the Credit Agreement, each of
the Lenders) under the Credit Agreement so long as any Credit Document
Obligations remain outstanding and (ii) in any situation not covered by the
preceding clause (i), the holders of a majority of the outstanding principal
amount of the Other Obligations.

            "Requisite Creditors" shall have the meaning provided in Section
10.2 of this Agreement.

            "Secondary Obligations" shall have the meaning provided in Section
7.4(b) of this Agreement.

            "Secured Creditors" shall have the meaning provided in the recitals
of this Agreement.

            "Secured Debt Agreements" shall mean and include this Agreement, the
other Credit Documents and the Interest Rate Protection Agreements and Other
Hedging Agreements.

            "Termination Date" shall have the meaning provided in Section 10.8
of this Agreement.

            "Trade Secret Rights" shall have the meaning provided in Section 5.1
of this Agreement.

            "UCC" shall mean the Uniform Commercial Code as in effect from time
to time in the relevant jurisdiction.

                                    ARTICLE X

                                  MISCELLANEOUS

            10.1. Except as otherwise specified herein, all notices, requests,
demands or other communications to or upon the respective parties hereto shall
be deemed to have been duly given or made when delivered to the party to which
such notice, request, demand or other communication is required or permitted to
be given or made under this Agreement, addressed as follows:

                                                                         Page 24


            (a) if to any Assignor, at the address set forth opposite such
Assignor's signature below;

            (b) if to the Collateral Agent, at:

                Bankers Trust Company
                One Bankers Trust Plaza
                New York, New York  10006
                Attention: Greg Shefrin
                Tel. No.: (212) 250-1725
                Fax. No.: (212) 250-7218;

            (c) if to any Lender Creditor, at such address as such Lender
Creditor shall have specified in the Credit Agreement;

            (d) if to any Other Creditor, at such address as such Other Creditor
shall have specified in writing to each Assignor and the Collateral Agent;

or at such other address as shall have been furnished in writing by any Person
described above to the party required to give notice hereunder.

            10.2. Waiver; Amendment. None of the terms and conditions of this
Agreement may be changed, waived, modified or varied in any manner whatsoever
unless in writing duly signed by each Assignor directly effected thereby and the
Collateral Agent (with the written consent of the Required Secured Creditors);
provided, however, that any change, waiver, modification or variance affecting
the rights and benefits of a single Class of Secured Creditors (and not all
Secured Creditors in a like or similar manner) shall require the written consent
of the Requisite Creditors of such affected Class. For the purpose of this
Agreement, the term "Class" shall mean each class of Secured Creditors, i.e.,
whether (x) the Lender Creditors as holders of the Credit Document Obligations
or (y) the Other Creditors as the holders of the Other Obligations. For the
purpose of this Agreement, the term "Requisite Creditors" of any Class shall
mean each of (x) with respect to the Credit Document Obligations, the Required
Lenders and (y) with respect to the Other Obligations, the holders of at least a
majority of all obligations outstanding from time to time under the respective
Interest Rate Protection Agreements or Other Hedging Agreements.

            10.3. Obligations Absolute. The obligations of each Assignor
hereunder shall remain in full force and effect without regard to, and shall not
be impaired by, (a) any bankruptcy, insolvency, reorganization, arrangement,
readjustment, composition, liquidation or the like of such Assignor; (b) any
exercise or non-exercise, or any waiver of, any right, remedy, power or
privilege under or in respect of this Agreement or any other Secured Debt
Agreement; or (c) any amendment to or modification of any Secured Debt Agreement
or any security for any of the Obligations; whether or not such Assignor shall
have notice or knowledge of any of the foregoing.

                                                                         Page 25


            10.4. Successors and Assigns. This Agreement shall be binding upon
each Assignor and its successors and assigns (although no Assignor may assign
its rights and obligations hereunder except in accordance with the provisions of
the Secured Debt Agreements) and shall inure to the benefit of the Collateral
Agent and the Secured Creditors and their respective successors and assigns. All
agreements, statements, representations and warranties made by each Assignor
herein or in any certificate or other instrument delivered by such Assignor or
on its behalf under this Agreement shall be considered to have been relied upon
by the Secured Creditors and shall survive the execution and delivery of this
Agreement and the other Secured Debt Agreements regardless of any investigation
made by the Secured Creditors or on their behalf.

            10.5. Headings Descriptive. The headings of the several sections of
this Agreement are inserted for convenience only and shall not in any way affect
the meaning or construction of any provision of this Agreement.

            10.6. Governing Law. THIS AGREEMENT AND THE RIGHTS AND OBLIGATIONS
OF THE PARTIES HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE WITH AND BE GOVERNED
BY THE LAW OF THE STATE OF NEW YORK.

            10.7. Assignor's Duties. It is expressly agreed, anything herein
contained to the contrary notwithstanding, that each Assignor shall remain
liable to perform all of the obligations, if any, assumed by it with respect to
the Collateral and the Collateral Agent shall not have any obligations or
liabilities with respect to any Collateral by reason of or arising out of this
Agreement, nor shall the Collateral Agent be required or obligated in any manner
to perform or fulfill any of the obligations of any Assignor under or with
respect to any Collateral.

            10.8. Termination; Release. (a) After the Termination Date, this
Agreement shall terminate (provided that all indemnities set forth herein
including, without limitation, in Section 8.1 hereof shall survive such
termination) and the Collateral Agent, at the request and expense of the
respective Assignor, will promptly execute and deliver to such Assignor a proper
instrument or instruments (including Uniform Commercial Code termination
statements on form UCC-3) acknowledging the satisfaction and termination of this
Agreement, and will duly assign, transfer and deliver to such Assignor (without
recourse and without any representation or warranty) such of the Collateral as
may be in the possession of the Collateral Agent and as has not theretofore been
sold or otherwise applied or released pursuant to this Agreement. As used in
this Agreement, "Termination Date" shall mean the date upon which the Total
Commitment and all Interest Rate Protection Agreements and Other Hedging
Agreements have been terminated, no Note is outstanding (and all Loans have been
repaid in full), all Letters of Credit have been terminated and all Obligations
then due and payable have been paid in full.

            (b) In the event that any part of the Collateral is sold in
connection with a sale permitted by Section 9.02 of the Credit Agreement (other
than a sale to any Assignor or a Subsidiary thereof) or otherwise released at
the direction of the Required Secured Creditors and the proceeds of such sale or
sales or from such release are applied in accordance with the

                                                                         Page 26


provisions of the Credit Agreement, to the extent required to be so applied,
such Collateral will be sold free and clear of the Liens created by this
Agreement and the Collateral Agent, at the request and expense of the relevant
Assignor, will duly assign, transfer and deliver to such Assignor (without
recourse and without any representation or warranty) such of the Collateral as
is then being (or has been) so sold or released and as may be in the possession
of the Collateral Agent and has not theretofore been released pursuant to this
Agreement.

            (c) At any time that an Assignor desires that the Collateral Agent
take any action to acknowledge or give effect to any release of Collateral
pursuant to the foregoing Section 10.8(a) or (b), such Assignor shall deliver to
the Collateral Agent a certificate signed by a principal executive officer of
such Assignor stating that the release of the respective Collateral is permitted
pursuant to Section 10.8(a) or (b).

            10.9. Counterparts. This Agreement may be executed in any number of
counterparts and by the different parties hereto on separate counterparts, each
of which when so executed and delivered shall be an original, but all of which
shall together constitute one and the same instrument. A set of counterparts
executed by all the parties hereto shall be lodged with each Assignor and the
Collateral Agent.

            10.10. Severability. Any provision of this Agreement which is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

            10.11. The Collateral Agent. The Collateral Agent will hold in
accordance with this Agreement all items of the Collateral at any time received
under this Agreement. It is expressly understood and agreed that the obligations
of the Collateral Agent as holder of the Collateral and interests therein and
with respect to the disposition thereof, and otherwise under this Agreement, are
only those expressly set forth in this Agreement and in Section 12 of the Credit
Agreement. The Collateral Agent shall act hereunder and thereunder on the terms
and conditions set forth herein and in Section 12 of the Credit Agreement.

            10.12. Benefit of Agreement. This Agreement shall be binding upon
the parties hereto and their respective successors and assigns and shall inure
to the benefit of and be enforceable by each of the parties hereto and its
successors and assigns.

            10.13. Additional Assignors. It is understood and agreed that any
Subsidiary of Holdings that is required to execute a counterpart of this
Agreement after the date hereof pursuant to the Credit Agreement shall become an
Assignor hereunder by executing a counterpart hereof and delivering the same to
the Collateral Agent.

                                      * * *


            IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed and delivered by their duly authorized officers as of the date first
above written.

Address:

8233 Imperial Drive                        TRANSDIGM HOLDING COMPANY,
Waco, TX 76712                               as an Assignor
Attention: Douglas W. Peacock
Telephone: (254) 741-5420
Telecopier: (254) 741-5402                 By /s/ Peter Radekevich
                                             -----------------------------------
                                             Title: Chief Financial Officer

8233 Imperial Drive                        TRANSDIGM INC.,
Waco, TX 76712                               as an Assignor
Attention: Douglas W. Peacock
Telephone: (254) 741-5420
Telecopier: (254) 741-5402                 By /s/ Peter Radekevich
                                             -----------------------------------
                                             Title: Chief Financial Officer

8233 Imperial Drive                        MARATHON POWER TECHNOLOGIES
Waco, TX 76712                              COMPANY,
Attention: Douglas W. Peacock               as an Assignor
Telephone: (254) 741-5420
Telecopier: (254) 741-5402                 
                                           By /s/ Peter Radekevich
                                             -----------------------------------
                                             Title: Chief Financial Officer

Accepted and Agreed to:

BANKERS TRUST COMPANY,
  as Assignee, Collateral Agent


By /s/ Gregory P. Shefrin
  -----------------------------------
  Title: Vice President



                                                                    ANNEX A
                                                                      to
                                                              SECURITY AGREEMENT

                       SCHEDULE OF CHIEF EXECUTIVE OFFICES
                           AND OTHER RECORD LOCATIONS


I.    TRANSDIGM HOLDING COMPANY
      c/o Marathon Power Technologies Company
      8233 Imperial Drive
      Waco, TX 76712

II.   TRANSDIGM INC.

           Marathon Power Technologies Company
           8233 Imperial Drive
           Waco, TX 76712

           AdelWiggins Group
           5000 Triggs Street
           Los Angeles, CA 90022

           AeroControlex Group
           26380 Curtiss Wright Parkway
           Richmond Heights, OH 44143

III.  MARATHON POWER TECHNOLOGIES COMPANY
      8233 Imperial Drive
      Waco, TX 76712





                                                                    ANNEX B
                                                                      to
                                                              SECURITY AGREEMENT

                  SCHEDULE OF INVENTORY AND EQUIPMENT LOCATIONS

Assignor                             Location
- --------                             --------

TransDigm Holding Company            c/o Marathon Power Technologies Company
                                     8233 Imperial Drive
                                     Waco, TX 76712

TransDigm Inc.                       Marathon Power Technologies Company
                                     8233 Imperial Drive
                                     Waco, TX 76712

                                     AdelWiggins Group
                                     5000 Triggs Street
                                     Los Angeles, CA 90022

                                     AeroControlex Group
                                     26380 Curtiss Wright Parkway
                                     Richmond Heights, OH 44143

Marathon Power Technologies Company  8233 Imperial Drive
                                     Waco, TX 76712



                                                                    ANNEX C
                                                                      to
                                                              SECURITY AGREEMENT

                     SCHEDULE OF TRADE AND FICTITIOUS NAMES

TRADE NAMES
(name in square brackets indicates division using the trade name)

ADEL                                [AdelWiggins]

WIGGINS                             [AdelWiggins]

CONTROLEX                           [AeroControlex]

DSP

SKY SOAP (BLOCK LETTERS)            [AeroControlex]

TRANSDIGM                           [AdelWiggins]

WIG-O-FLEX                          [AdelWiggins]

ADELWIGGINS                         [AdelWiggins]

AEROCONTROLEX                       [AeroControlex]

ADEL FASTENERS                      [AdelWiggins]

WIGGINS CONNECTORS                  [AdelWiggins]

WIGGINS SERVICE SYSTEMS             [AdelWiggins]

CONNECT-O-MATIC                     [AdelWiggins]

M3                                  [Marathon]

INST-O-MATIC

MARATHON (and Design)               [Marathon]

SUPERPOWER                          [Marathon]

M (and Design)                      [Marathon]

FLITE-TRONICS                       [Marathon]

MARATHON POWER TECHNOLOGIES         [Marathon]

MARATHON BATTERIES LIMITED          [Marathon]



FICTITIOUS NAMES

None



                                                                    ANNEX D
                                                                      to
                                                              SECURITY AGREEMENT

                                SCHEDULE OF MARKS

I.  REGISTERED TRADEMARKS--TRANSDIGM INC.

Mark                                Country                    Registration No.
- ----                                -------                    ----------------

ADEL                                 U.S.                      1,189,110

WIGGINS                              U.S.                      1,236,043

CONTROLEX                            U.S.                      1,988,196

DSP                                  U.S.                      1,108,030

SKY SOAP (BLOCK LETTERS)            France                     1,556,830

SKY SOAP (BLOCK LETTERS)            Germany                    1,183,101

II.  REGISTERED TRADEMARKS--MARATHON POWER TECHNOLOGIES COMPANY

Mark                                Country                    Registration No.
- ----                                -------                    ----------------

MARATHON (and Design)                U.S.                      1,001,746

MARATHON                             U.S.                      1,330,727

SUPERPOWER                           U.S.                      1,347,534

MARATHON                             U.K.                      B1,241,295

III.  UNREGISTERED TRADEMARKS--TRANSDIGM INC.

TRANSDIGM
WIG-O-FLEX
ADELWIGGINS
AEROCONTROLEX
ADEL FASTENERS
WIGGINS CONNECTORS
WIGGINS SERVICE SYSTEMS
CONNECT-O-MATIC
M3
INST-O-MATIC

II.  UNREGISTERED TRADEMARKS--MARATHON POWER TECHNOLOGIES COMPANY

M (and Design)
FLITE-TRONICS
MARATHON POWER TECHNOLOGIES
MARATHON BATTERIES LIMITED



                                                                    ANNEX E
                                                                      to
                                                              SECURITY AGREEMENT

                               SCHEDULE OF PATENTS


I.  U.S. PATENTS--TRANSDIGM INC.

Invention                               Patent No.
- ---------                               ----------

Tube Clamp                              4,393,998

Check-Valve Construction                4,351,358

In-Line, Bidirectional Check Valve      08/938,307

II.  FOREIGN PATENTS--TRANSDIGM INC.
     (Certain foreign patents may have expired or lapsed)

Invention                               Country             Patent No.
- ---------                               -------             ----------

Check-Valve Construction                Canada              1,130,696

Check-Valve Construction                Canada              1,132,430

Insert Check Valve or the Like          Canada              1,138,743

Insert Check Valve or the Like          Japan               1,325,78/89

Bi-Petal L Check-Valve Construction     France              8,911,886

Bi-Petal L Check-Valve Construction     Japan               2,718,83/89

Bi-Petal L Check-Valve Construction     Germany             P,392,7694.5

III.  OTHER

        License Agreement, dated as of October 31, 1997, by and between Bell 
        Helicopter Textron Inc. (as Licensor), and AdelWiggins Group, a 
        division of TransDigm Inc. (as Licensee), concerning a 
        self-restraining loop style clamp (U.S. Patent 5,377,940, issued 
        January 3, 1995).



                                                                    ANNEX F
                                                                      to
                                                              SECURITY AGREEMENT

                             SCHEDULE OF COPYRIGHTS


None




                                                                    ANNEX G
                                                                      to
                                                              SECURITY AGREEMENT

                         ASSIGNMENT OF SECURITY INTEREST
                     IN UNITED STATES TRADEMARKS AND PATENTS

            FOR GOOD AND VALUABLE CONSIDERATION, receipt and sufficiency of
which are hereby acknowledged, [Name of Assignor], a __________ corporation (the
"Assignor") with principal offices at ____________________________, hereby
assigns and grants to Bankers Trust Company, as Collateral Agent, with principal
offices at One Bankers Trust Plaza, 130 Liberty Street, New York, New York 10006
(the "Assignee"), a security interest in (i) all of the Assignor's right, title
and interest in and to the United States trademarks, trademark registrations and
trademark applications (the "Marks") set forth on Schedule A attached hereto,
(ii) all of the Assignor's rights, title and interest in and to the United
States patents (the "Patents") set forth on Schedule B attached hereto, in each
case together with (iii) all Proceeds (as such term is defined in the Security
Agreement referred to below) and products of the Marks and Patents, (iv) the
goodwill of the businesses with which the Marks are associated and (v) all
causes of action arising prior to or after the date hereof for infringement of
any of the Marks and Patents or unfair competition regarding the same.

            THIS ASSIGNMENT is made to secure the satisfactory performance 
and payment of all the Obligations of the Assignor, as such term is defined 
in the Security Agreement among the Assignor, the other assignors from time 
to time party thereto and the Assignee, dated as of December 3, 1998 (as 
amended from time to time, the "Security Agreement"). Upon the occurrence of 
the Termination Date (as defined in the Security Agreement), the Assignee 
shall, 



                                                                         ANNEX G
                                                                          Page 2

upon such satisfaction, execute, acknowledge, and deliver to the Assignor an 
instrument in writing releasing the security interest in the Marks and 
Patents acquired under this Assignment.

            This Assignment has been granted in conjunction with the security
interest granted to the Assignee under the Security Agreement. The rights and
remedies of the Assignee with respect to the security interest granted herein
are as set forth in the Security Agreement, all terms and provisions of which
are incorporated herein by reference. In the event that any provisions of this
Assignment are deemed to conflict with the Security Agreement, the provisions of
the Security Agreement shall govern.

                                      * * *


                                                                         ANNEX G
                                                                          Page 3

            IN WITNESS WHEREOF, the undersigned have executed this Agreement as
of the ____ day of _____________, ____.

                                     [NAME OF ASSIGNOR], Assignor


                                     By
                                       --------------------------------------
                                       Name:
                                       Title:

                                     BANKERS TRUST COMPANY,
                                       as Collateral Agent, Assignee


                                     By
                                       --------------------------------------
                                       Name:
                                       Title:


STATE OF NEW YORK  )
                   ) ss.:
COUNTY OF NEW YORK )

            On this ____ day of _________, ____, before me personally came
________ _________________ who, being by me duly sworn, did state as follows:
that [s]he is _______________ of [Name of Assignor], that [s]he is authorized to
execute the foregoing Assignment on behalf of said corporation and that [s]he
did so by authority of the Board of Directors of said corporation.



                                         -------------------------
                                                Notary Public


STATE OF NEW YORK  )
                   ) ss.:
COUNTY OF NEW YORK )

            On this ____ day of _________, ____, before me personally came
________ _____________________ who, being by me duly sworn, did state as
follows: that [s]he is __________________ of Bankers Trust Company that [s]he is
authorized to execute the foregoing Assignment on behalf of said corporation and
that [s]he did so by authority of the Board of Directors of said corporation.



                                         -------------------------
                                                Notary Public


                                                                      SCHEDULE A

MARK                                  REG. NO.                   REG. DATE
- ----                                  --------                   ---------


                                                                      SCHEDULE B

PATENT                                PATENT NO.                 ISSUE DATE
- ------                                ----------                 ----------


                                                                    ANNEX H
                                                                      TO
                                                              SECURITY AGREEMENT

                         ASSIGNMENT OF SECURITY INTEREST
                           IN UNITED STATES COPYRIGHTS

            WHEREAS, [Name of Assignor], a _______________ corporation (the
"Assignor"), having its chief executive office at ___________________,
________________, is the owner of all right, title and interest in and to the
United States copyrights and associated United States copyright registrations
and applications for registration set forth in Schedule A attached hereto;

            WHEREAS, BANKERS TRUST COMPANY, as Collateral Agent, having its
principal offices at One Bankers Trust Plaza, 130 Liberty Street, New York, New
York 10006 (the "Assignee"), desires to acquire a security interest in said
copyrights and copyright registrations and applications therefor; and

            WHEREAS, the Assignor is willing to assign to the Assignee, and to
grant to the Assignee a security interest in and lien upon the copyrights and
copyright registrations and applications therefor described above.

            NOW, THEREFORE, for good and valuable consideration, the receipt of
which is hereby acknowledged, and subject to the terms and conditions of the
Security Agreement, dated as of December 3, 1998, made by the Assignor, the
other assignors from time to time party thereto and the Assignee (as amended
from time to time, the "Security Agreement"), the Assignor hereby assigns to the
Assignee as collateral security, and grants to the Assignee a security interest
in, the copyrights and copyright registrations and applications therefor set
forth in Schedule A attached hereto.

            This Assignment has been granted in conjunction with the security
interest granted to the Assignee under the Security Agreement. The rights and
remedies of the Assignee with respect to the security interest granted herein
are as set forth in the Security Agreement, all terms and provisions of which
are incorporated herein by reference. In the event that any provisions of this
Assignment are deemed to conflict with the Security Agreement, the provisions of
the Security Agreement shall govern.


            Executed at New York, New York, the __ day of _________, ____.

                                    [NAME OF ASSIGNOR], as Assignor


                                    By
                                      ------------------------------------------
                                      Name:
                                      Title:

                                    BANKERS TRUST COMPANY, as
                                      Collateral Agent, Assignee


                                    By
                                      ------------------------------------------
                                      Name:
                                      Title:


STATE OF NEW YORK  )
                   ) ss.:
COUNTY OF NEW YORK )

                  On this __ day of _________, ____, before me personally came
___________ _______________, who being duly sworn, did depose and say that [s]he
is ___________________ of [Name of Assignor], that [s]he is authorized to
execute the foregoing Assignment on behalf of said corporation and that [s]he
did so by authority of the Board of Directors of said corporation.



                                          -------------------------
                                                 Notary Public


STATE OF NEW YORK  )
                   ) ss.:
COUNTY OF NEW YORK )

            On this ____ day of _________, ____, before me personally came
________ _____________________ who, being by me duly sworn, did state as
follows: that [s]he is __________________ of Bankers Trust Company that [s]he is
authorized to execute the foregoing Assignment on behalf of said corporation and
that [s]he did so by authority of the Board of Directors of said corporation.



                                          -------------------------
                                                 Notary Public


                                                                      SCHEDULE A

                                 U.S. COPYRIGHTS


   REGISTRATION                    PUBLICATION
     NUMBERS                          DATE                    COPYRIGHT TITLE
   ------------                    -----------                ---------------