SIXTH AMENDMENT TO AMENDED AND
                               RESTATED LOAN AGREEMENT


                    This  SIXTH  AMENDMENT  TO  AMENDED  AND  RESTATED LOAN
          AGREEMENT (this "Amendment") is being entered into as of the 27th
          day of February, 1995, by and among PETROLEUM HELICOPTERS,  INC.,
          a   Louisiana  corporation  (successor  by  merger  to  Petroleum
          Helicopters,  Inc.,  a  Delaware  corporation)  (the  "Company"),
          NATIONSBANK  OF  TEXAS,  N.A.,  a  national  banking  association
          ("NationsBank"),   WHITNEY  NATIONAL  BANK,  a  national  banking
          association ("Whitney"),  FIRST  NATIONAL  BANK  OF  COMMERCE,  a
          national   banking   association   ("FNBC",   and  together  with
          NationsBank   and   Whitney,   being   hereinafter  referred   to
          collectively as the "Banks"), and NationsBank  as  agent  for the
          Banks (in such capacity, the "Agent").

                                PRELIMINARY STATEMENTS


                    (1)  The Company, the Banks, and the Agent have entered
          into that certain Amended and Restated Loan Agreement, originally
          made  as  of  January  31,  1986,  as amended and restated in its
          entirety  as  of July 9, 1993, and as  further  amended  by  that
          certain First Amendment  to  Amended and Restated Loan Agreement,
          dated as of October 31, 1993,  that  certain  Second Amendment to
          Amended and Restated Loan Agreement, dated as of  April 15, 1994,
          that  certain  Third  Amendment  to  Amended  and  Restated  Loan
          Agreement,  dated  as  of  July 31,  1994,  that  certain  Fourth
          Amendment  and  Limited  Waiver  to  Amended  and  Restated  Loan
          Agreement,  dated  as of October 25, 1994, and that certain Fifth
          Amendment to Amended  and  Restated  Loan  Agreement, dated as of
          October 31, 1994 (such Loan Agreement, as amended and restated as
          aforesaid  and as the same may be further amended  from  time  to
          time, being  hereinafter  referred  to  as the "Loan Agreement").
          Terms used herein, unless otherwise defined  herein,  shall  have
          the meanings set forth in the Loan Agreement.

                    (2)  The Company, the Banks, and the Agent now wish  to
          amend the Loan Agreement to provide, among other things, that the
          acquisition  by the Company of certain of its stock be permitted,
          that certain transfers  of  Aviation Units that comprise portions
          of  the  Aircraft  in  exchange  for   other  Aviation  Units  be
          permitted,  that the acquisition by the Company  of  49%  of  the
          Capital Stock  of  Irish  Helicopters,  Limited be permitted, and
          that a change in the address of the chief executive office of the
          Company be reflected, all subject to the terms and conditions set
          forth herein.

                    NOW, THEREFORE, in consideration  of  the  premises and
          for  other  good  and  valuable  consideration,  the receipt  and
          sufficiency  of which are hereby acknowledged, the  Company,  the
          Banks, and the Agent hereby agree as follows:

                    1.   Amendment  of Section 1.01 of the Loan Agreement -
          "Louisiana UCC-1 Financing  Statement".  Section 1.01 of the Loan
          Agreement  is  hereby  amended by  deletiong  the  definition  of
          "Louisiana UCC-1 Financing  Stattmetement"  in  its  entirety and
          replacing said definition with the following definition:

                              "Louisiana UCC-1 Financing Statement""" shall
               mean,  collectively,  (a)  that certain form UCC-1 financing
               statement,  filed for recordation  as  of  October 3,  1990,
               (Original File  No. 26-163010)  executed  by the Company, as
               Debtor, an d by the Agent, as Secured Party,  for  the equal
               and ratable benefit of the Banks and recorded with the Clerk
               of  Court of Jefferson Parish, Louisiana, together with  any
               and all supplements, modifications or amendments tthereto or
               restatements        thereof,        including,       without
               limiationlimitation,  any UCC-3 Financing  Statement  Change
               Forms executed and filed  in connection wtherewith, and; and
               (b) that certain form UCC-1  financing statement , filed for
               recordation as of October 28,  1994,  (Original File No. 36-
               88428) executed by the Company, as Debtor, and by the Agent,
               as Secured Party, for the equal and ratable  benefit  of the
               Banks  and  recrorded  with  the  Clerk  of Court of Orleans
               Parish , Louisiana, together with any and  all  supplements,
               modifications or amendments thereto or restatements thereof,
               including,   woithout   limitation,   any   UCC-3  Financing
               Statement  Change  Forms  executed  and filed in  connection
               therewith.

                    2.   Additional Amendment of Section 1.01  of  the Loan
          Agreement  -  "Security  Documents".   Section 1.01  of  the Loan
          Agreement   is  hereby  further  amended  by  deleting  from  the
          definition of  "Security  Documents"  the  word "and" immediately
          preceding the phrase "the Financing Statement  (Change  Form-   -
          Amendment)",  replacing  said  word  with a comma, and adding the
          following phrase immediately preceding  the  period at the end of
          tsaid definition:

                    "and the Texas UCC-1 Financing Statement"



           n .      3.   Additional Amendment of Section  1.01  of the Loan
          Agreement - New Definitions.  Section 1.01 of the Loan  Agreement
          is amended by adding the following definitions thereto:

                    "Stock Repurchase" shall have the meaning specified  in
                    Section 8.02(c) hereof.

                         "Texas UCC-1 financFinancing Statement" shall mean
                    that  certain form UCC-1 financing statement, filed for
                    recordation  as  of  October 28,  1994,  (Original File
                    No. 94-211465) executed by the Company, as  Debtor, and
                    by  the  Agent,  as  Secured  Party, for the equal  and
                    ratable  benefit of the bBanks and  recorded  with  the
                    Secretary  of State of Texas, together with any and all
                    supplements,  modifications  or  amendments  thereto or
                    resetatements      thereof,      including,     without
                    limiationlimitation,  any  UCC-23 fFinancing  Statement
                    Change   Forms   executed  and  filed   in   connection
                    therewith;



                    4.   Amendment of  Section 5.14  of the Loan Agreement.
          Section 5.14 of the Loan Agreement is hereby  amended by deleting
          said Section in its entirety and replacing said  Section with the
          following section:

                         5.14 Registered  Office  of  Company,   Etc.   The
                    registered  office  of  the  Company  (as shown on  the
                    records  of  the  Secretary  of State of the  State  of
                    Louisiana) and its chief executive  office is, from the
                    date  hereof until August 18, 9951995,  5728  Jefferson
                    Highway,  Harahan,  Louisiana 70183,  and, on and after
                    August 19,  1995, is 2121 Airline Highway,  Suite  400,
                    Metairie, Louisiana 70001-5979.

                    5.   Amendment  of  Section 8.01 of the Loan Agreement.
          Section 8.01 of the Loan Agreement  is hereby amended by deleting
          clauses (c)  and  (d) from said Section  in  their  entirety  and
          replacing said clauses with the following clauses:

                         (c)  $70,000,000  at the end of the fiscal quarter
                    of the Company ending April 30,  1994,  and  (d) at the
                    end of each fiscal quarter thereafter, an amount  equal
                    to  the greater of (i) $70,000,000, or (ii) the sum  of
                    $70,000,000 plus 50% of Consolidated Net Income for the
                    period commencing on May 1, 1994 and terminating at the
                    end of the fiscal quarter most recently ended.

                    6.   Amendment  of  Section 8.02 of the Loan Agreement.
          Section 8.02 of the Loan Agreement  is hereby amended by deleting
          the  word  "and"  between  clauses (a) and  (b)  of  the  proviso
          thereto,  and  adding  the  following   clause   (c)  immediately
          preceding the period at the end of said clause (b):

                    ", and (c) on or before March 5, 1995, purchase  up  to
                    413,308  shares of the voting stock of the Company from
                    Offshore Navigation,  Inc.  at  a purchase price not to
                    exceed $10.50 per share (the "Stock Repurchase")

                    7.   Amendment  of  Section 8.07  of   Loan  Agreement.
          Section 8.07 of the Loan Agreement is hereby amended  by  adding,
          immediately  after  the  phrase  "one  or more joint ventures" in
          clause  (i)  of  said  Section,  the phrase ",  other  than  that
          described in clause (iii) of this  Section 8.07,".   Section 8.07
          of  the Loan Agreement is hereby further amended by deleting  the
          word  "or" immediately preceding clause (ii) of said Section, and
          adding  the  following  clause (iii)  immediately  preceding  the
          period at the end of said Section:

                    ,  or  (iii) the investment by the Company in up to 49%
                    of the capital  stock (or comparable equity securities)
                    of Irish Helicopters,  Limited, a corporation organized
                    under the laws of the Republic  of  Ireland, the amount
                    of such investment not to exceed $4,000,000.

                    8.   Amendment of Section 8.14 of the  Loan  Agreement.
          Section 8.14  of  the Loan Agreement is hereby amended by  adding
          the phrase ", or the  Stock Repurchase" immediately preceding the
          period at the end of said Section.

                    9.   Additional   Amendment  of  the  Loan  Agreement -
          Addition of Section 9.06.  The  Loan  Agreement is hereby further
          amended by adding thereto the following Section:

                              9.06 Aircraft Exchange Transactions.

                         (a)  If the Company determines  that  it is in the
                    best  interest of the Company to transfer ownership  of
                    one or  more  Aviation Units that comprise a portion of
                    the Aircraft in exchange for one or more other Aviation
                    Units (whether  or  not  the sale price of the Aviation
                    Unit to be transferred by  the Company includes cash in
                    addition to the Aviation Unit  to  be  received  by the
                    Company  in  exchange therefor), then upon the delivery
                    of an Officers'  Certificate  stating the United States
                    registration  number  of  the  Aviation   Unit   to  be
                    transferred and the date (which shall not be less  than
                    14  nor  more  than  90  days  from  the  date  of such
                    Officers'  Certificate)  that  the  Company  intends to
                    consummate  such  transaction,  the Company may request
                    that  the Agent, on behalf of the  Banks,  release  the
                    Aircraft  to  be transferred from the Security Interest
                    and  the Agent,  on  behalf  of  the  Banks,  within  a
                    reasonable  time after such request and in any event on
                    or before the  date  on  which  the Company consummates
                    such   transaction,   shall   execute   all   documents
                    (including  all appropriate termination statements  and
                    releases) required  to  effect  such  release, provided
                    that (i) the Company shall provide the Aviation Unit to
                    be  received  by  it  for  inclusion  in  the  Security
                    Interest pursuant to Subsection 9.06(b), and the sum of
                    the Appraised Value of said Aviation Unit, as reflected
                    on a certificate of an Independent Appraiser,  in  form
                    and  substance acceptable to the Agent, plus the amount
                    of any cash to be received by the Company as additional
                    consideration  for the Aviation Unit being transferred,
                    shall be greater  than or equal to the Appraised Value,
                    as  reflected  on  a  certificate   of  an  Independent
                    Appraiser,  in  form  and substance acceptable  to  the
                    Agent, of the Aviation  Unit  to  be released, (ii) the
                    Company shall pay to the Agent for  the ratable benefit
                    of  the  Banks,  to  be applied in the same  manner  as
                    proceeds of a sale under  Section  9.03(c)(i), all cash
                    proceeds,  if any, from such sale, upon  the  Company's
                    receipt thereof,  and  (iii)  no  Default  or  Event of
                    Default has occurred and is continuing or would  result
                    from  the release of the Aircraft to be transferred  by
                    the  Company   (except,   that,   notwithstanding   any
                    provisions  of  this  Agreement  to  the  contrary, the
                    Company   shall   not   be   required  to  comply  with
                    Subsection 8.16(b) during the  period commencing on the
                    date  the Aircraft to be transferred  is  released  and
                    ending  on  the date that the requirements set forth in
                    Subsection 9.06(b)  are  satisfied),  and  the  Company
                    shall   have   delivered  to  the  Agent  an  Officers'
                    Certificate to such  effect in the form of Exhibit H to
                    this Agreement.

                         (b)  For  each  Aviation  Unit  that  the  Company
                    desires  to  include in  the  Security  Interest  as  a
                    substitute for an Aviation Unit to be released pursuant
                    to Subsection  9.06(a),  the  Company  shall,  upon its
                    acquisition  thereof,  grant  a first priority security
                    interest in such Aviation Unit  to  the Banks to secure
                    the Company's obligations hereunder and under any other
                    documents   executed   in   connection   herewith    or
                    contemplated hereby, whereupon such Aviation Unit shall
                    constitute  a  portion of the Collateral subject to the
                    Security   Interest.    Without   limitation   on   the
                    foregoing, within  60  days  after  the  earlier of the
                    Company's  acquiring the Aviation Unit to be  subjected
                    to the Security  Interest or the Agent's release of the
                    Aircraft pursuant  to  Subsection  9.06(a), the Company
                    shall (i) file or cause to be filed  a  proper  bill of
                    sale  or bills of sale covering said Aviation Unit  (on
                    FAA Form  8050-2,  "Aircraft  Bill  of Sale", or on any
                    other appropriate form) in the Aircraft Registry and in
                    any other public office necessary for  full  compliance
                    by  the Company with the terms hereof; (ii) cause  said
                    Aviation  Unit to be free and clear of all Liens (other
                    than Permitted  Liens),  make  the appropriate filings,
                    registrations and recordings (including  the  filing of
                    FAA   Form  8050-41  and  any  appropriate  termination
                    statements   or  releases)  necessary  to  release  any
                    existing Liens  of  record  and  otherwise  cause  said
                    Aviation  Unit  to  be  in full compliance with all the
                    terms and provisions of this  Agreement  with  the same
                    effect  as  if  the same were a portion of the original
                    Aviation   Unit   described    in    this    Agreement;
                    (iii) execute and deliver any registration, recordation
                    or filing documents and any other appropriate  security
                    documentation  as  the  Agent  or  any Bank through the
                    Agent  may request for the purpose of  describing  said
                    Aviation   Unit   (including   all   aircraft  engines,
                    airframes, propellers, rotors, appliances, instruments,
                    mechanisms,    equipment    (including   communications
                    equipment),   parts,   apparatus,   appurtenances   and
                    accessories) in reasonable  detail,  and  expressly and
                    specifically   subjecting  the  same  to  the  Security
                    Interest; (iv) deliver  or cause to be delivered to the
                    Agent and each Bank an opinion  of  counsel  (dated the
                    date  of  the  filing  for  recordation in the Aircraft
                    Registry of the security documentation  referred  to in
                    clause (iii) above) to the effect that the Company  has
                    good and marketable title to said Aviation Unit free of
                    all  Liens  (other  than Permitted Liens) and that said
                    Aviation Unit has been  duly  subjected to the Security
                    Interest and constitutes a portion  of  the Collateral;
                    and (v) deliver to the Agent and each Bank an Officers'
                    Certificate  certifying  that  the Company is  in  full
                    compliance with all provisions of  this  Agreement with
                    respect to the same.

                         (c)  The  Agent  shall  be absolutely entitled  to
                    rely  on  the Officers' Certificates,  certificates  of
                    Independent Appraisers and opinions of counsel referred
                    to in Subsections  9.06(a)  and (b) for the veracity of
                    each  of  the  statements  made therein  absent  actual
                    knowledge to the contrary on the part of the officer of
                    the  Agent  executing the documents  relating  to  such
                    release or addition.   The  Agent shall not be required
                    to investigate or verify any  statement  made  in  such
                    Officers'  Certificates,  certificates  of  Independent
                    Appraisers    and   opinions   of   counsel   and   any
                    investigation that  the  Agent shall elect to undertake
                    shall not affect its ability  to rely on such Officers'
                    Certificates,  Certificates  of Independent  Appraisers
                    and opinions of counsel.

                         (d)  Each  of  the  Banks  hereby  authorizes  the
                    Agent, upon the delivery of the Officers'  Certificate,
                    certificates  of Independent Appraisers and opinion  of
                    counsel required  by  Subsections  9.06(a)  and (b), to
                    execute   and  deliver  (and,  where  appropriate,   as
                    determined  by  the  Agent  in its sole and independent
                    discretion, to authorize others  to execute and deliver
                    on  its behalf) on behalf of the Banks,  all  documents
                    required  to effect the release of the Aviation Unit to
                    be sold and  the  addition  of  one  or more substitute
                    Aviation  Unit  received  by  the Company  in  exchange
                    therefor to the Security Interest.

                         (e)  At no one time shall there be more than three
                    (3) Aircraft that are the subject  of releases from the
                    Security Interest unless all requirements  set forth in
                    Subsections  9.06(a)  and 9.06(b) with respect  thereto
                    and with respect to the  Aviation Units to be subjected
                    to the Security Interest in  place  thereof  have  been
                    satisfied.

                    10.  Additional  Amendment  of  the  Loan  Agreement  -
          Addition  of  Exhibit  H.   The  Loan Agreement is hereby further
          amended by adding Exhibit H thereto  in  the form of Exhibit A to
          this Amendment.

                    11.  Amendment odf Financing Statements:  The  Company,
          the  Banks  and  the  Agent  further  agree  that (a) the various
          financing  statements evidencing the Security Interest  shall  be
          amended so that  they  reflect  the  change in the address of the
          Company's chief executive office, and  (b) Exhibit "A" to each of
          the Louisiana UCC-1 Financing Statements, and the UCC-1 Financing
          Statement   the Texas UCC-1 Financing Statement,  and  the  UCC-1
          Financing Statement  shall  be  amended as set forth in Exhibit B
          hereto in order to more accurately  reflect  the agreement of the
          Company, the Banks and the Agent as to the scope  of the Security
          Interest   in  parts,  products  and  proceeds  of,  and  general
          intangibles relating to, aircraft.

                    12.  Company's   Representations  and  Warranties.   In
          order  to induce the Agent and  the  Banks  to  enter  into  this
          Amendment, the Company hereby represents that:

                         (a)  after   giving   effect   to  the  amendments
                    contemplated herein, the representations and warranties
                    contained  in  the Loan Agreement, the  Notes  and  the
                    Security Documents (collectively, the "Loan Documents")
                    are true and correct  on  and  as of the date hereof as
                    though  made  on  and as of such date,  except  to  the
                    extent such representations and warranties specifically
                    relate to an earlier date, in which case they were true
                    and correct as of such date;

                         (b)  upon execution of this Amendment, the Company
                    will not be in default  in  the  due performance of any
                    covenant on its part in the Loan Documents;

                         (c)  no Default or Event of Default  has  occurred
                    and is continuing or is imminent;

                         (d)  the  Company  has  all  requisite  power  and
                    authority  to enter into this Amendment and any and all
                    documents effecting  the  Stock  Repurchase (the "Stock
                    Repurchase   Documents")   and   to   carry   out   the
                    transactions  contemplated  by,  and  to  perform   its
                    obligations  under,  the Loan Agreement, as modified by
                    this  Amendment  (the "Modified  Agreement"),  and  the
                    Stock Repurchase Documents; and

                         (e)  the execution  and delivery of this Amendment
                    and the Stock Repurchase Documents  and the performance
                    of  the  Modified  Agreement  and the Stock  Repurchase
                    Documents have been duly authorized  by  all  necessary
                    corporate actions on the part of the Company.

                    13.  Conditions to Effectiveness.  This Amendment  will
          be  effective,  as  of the date first above written, upon (i) the
          Company's delivery to the Agent, for the account of the Banks, of
          the following items:

                         (a)  a  counterpart  of this Amendment executed by
                    the Company;

                         (b)  opinions of counsel  to  the  Company in form
                    and substance acceptable to the Banks; and

                         (c)  an Officer's Certificate of the  Company with
                    directors' resolutions ratifying this Amendment and the
                    transactions  contemplated by this Amendment  attached,
                    in form and substance acceptable to the Banks; and

          (ii) the delivery to the  Agent of counterparts of this Amendment
          executed by each of the Banks.

                    14.  Further Assurances.   The  Company  agrees  to do,
          execute,  acknowledge,  and  deliver,  all and every such further
          acts  and  instruments as the Agent may request  for  the  better
          assuring and  confirming  unto  the  Agent  and the Banks all and
          singular the rights granted or intended to be  granted  hereby or
          hereunder.

                    15.  Reference to and Effect on the Loan Agreement  and
          the Security Documents; Limitation of Waivers.

                         (a)  On and after the date of this Amendment, each
               reference   in  the  Loan  Agreement  to  "this  Agreement",
               "hereunder",  "hereof",  "herein"  or  words  of like import
               referring to the Loan Agreement, and each reference  in  the
               Security  Documents  to  the "Loan Agreement", "thereunder",
               "thereof" or words of like  import  referring  to  the  Loan
               Agreement  shall  mean  and  be  a reference to the Modified
               Agreement.

                         (b)  Except as specifically  amended  hereby,  the
               Loan  Agreement  and  the Security Documents shall remain in
               full force and effect and are hereby ratified and confirmed,
               and  the  execution,  delivery   and   performance  of  this
               Amendment  shall not, except as expressly  provided  herein,
               operate as a  modification  of any right, power or remedy of
               the  Agent or any Bank under the  Loan  Agreement.   Without
               limiting  the  generality  of the foregoing, nothing in this
               Amendment shall be deemed (a)  to  constitute  a  waiver  of
               compliance   by  the  Company  with  respect  to  any  other
               provision or condition  of  the  Loan  Agreement  or  (b) to
               prejudice any right or remedy that the Agent or any Bank may
               now  have  (except  to  the  extent such right or remedy was
               based  upon  existing defaults that  will  not  exist  after
               giving effect  to  this Amendment) or may have in the future
               under or in connection  with the Loan Agreement or any other
               instrument referred to therein.

                    16.  Fees and Expenses.   The  Company agrees to pay on
          demand  all  reasonable  costs  and  expenses  of  the  Banks  in
          connection  with  the  preparation, reproduction, execution,  and
          delivery  of  this  Amendment   and  the  other  instruments  and
          documents  to be delivered hereunder  (including  the  reasonable
          fees and out-of-pocket  expenses  of  counsel  for the Banks, and
          with  respect  to  advising  each  Bank  as  to  its  rights  and
          responsibilities  under  the  Loan Agreement, as hereby amended).
          In addition, the Company shall  pay  any  and all stamp and other
          taxes and fees payable or determined to be  payable in connection
          with  the  execution and delivery, filing, or recording  of  this
          Amendment and the other instruments and documents to be delivered
          hereunder, and agrees to save each Bank harmless from and against
          any and all  liabilities  with  respect  to or resulting from any
          delay in paying or omission to pay such taxes or fees.

                    17.  Headings.  Section headings  in this Amendment are
          included herein for convenience of reference  only  and shall not
          constitute a part of this Amendment for any other purpose  or  be
          given any substantive effect.

                    18.  Counterparts;  Effectiveness.   This Amendment may
          be  executed  in  any  number  of  counterparts and by  different
          parties hereto in separate counterparts,  each  of  which when so
          executed and delivered shall be deemed to be an original  and all
          of  which  taken  together  shall constitute but one and the same
          instrument;  signature  pages  may   be  detached  from  multiple
          separate counterparts and attached to  a  single  counterpart  so
          that  all  signature  pages  are  physically attached to the same
          document.   Upon  satisfaction of the  conditions  set  forth  in
          Section 5 hereof, this  Amendment shall be deemed effective as of
          the date hereof.

                    19. Governing  Law; Binding Agreement.  THIS AMENDMENT
          SHALL BE GOVERNED BY AND CONSTRUED  AND  ENFORCED  IN  ACCORDANCE
          WITH  THE LAWS OF THE STATE OF TEXAS, WITHOUT REGARD TO CONFLICTS
          OF LAWS  PRINCIPLES,  and  shall be binding upon the Company, the
          Agent, and the Banks and their respective successors and assigns.

                    20.  FINAL AGREEMENT.   THIS  AMENDMENT,  TOGETHER WITH
          THE  LOAN  AGREEMENT,  EACH  NOTE,  THE COLLATERAL MORTGAGE  NOTE
          (PARTS), EACH SECURITY DOCUMENT AND ALL  OTHER DOCUMENTS EXECUTED
          IN  CONNECTION  HEREWITH  AND  THEREWITH,  REPRESENTS  THE  FINAL
          AGREEMENT  BETWEEN  THE  PARTIES AND MAY NOT BE  CONTRADICTED  BY
          EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS
          OF THE PARTIES.

                    THERE  ARE NO UNWRITTEN  ORAL  AGREEMENTS  BETWEEN  THE
          PARTIES.

                    [Remainder of page intentionally left blank.]


          DAL02:70954.4

                    IN WITNESS WHEREOF, the parties hereto have caused this
          Sixth Amendment to  Amended  and  Restated  Loan  Agreement to be
          executed  by their respective officers thereunto duly  authorized
          as of the date first above written.

                                             PETROLEUM HELICOPTERS, INC.


                                             By:
                                             Name:
                                             Title:


                                             NATIONSBANK OF TEXAS, N.A.,
                                               individually and as Agent


                                             By:
                                             Name:
                                             Title:


                                             WHITNEY NATIONAL BANK


                                             By:
                                             Name:
                                             Title:


                                             FIRST    NATIONAL    BANK   OF
                                             COMMERCE


                                             By:
                                             Name:
                                             Title:


          DAL02:70954.4
                                      EXHIBIT A
                                          TO
                                  SIXTH AMENDMENT TO
                                 AMENDED AND RESTATED
                                    LOAN AGREEMENT

                                      EXHIBIT H

                                OFFICERS' CERTIFICATE
                            OF PETROLEUM HELICOPTERS, INC.
                         AS TO AIRCRAFT EXCHANGE TRANSACTION


          The  undersigned,  Carroll  W.  Suggs and John H. Untereker,  the
          Chairman  of  the  Board  and  the  Treasurer,  respectively,  of
          Petroleum  Helicopters,  Inc.,  a  Louisiana   corporation   (the
          "Company"),  on  our  own  behalf  and  on behalf of the Company,
          hereby  certify  as  to  the matters set forth  in  the  numbered
          paragraphs below.  The capitalized  terms  used  and  not defined
          herein  are used with the same meaning assigned thereto  in  that
          certain Loan  Agreement  among  the  Company  and  NationsBank of
          Texas,  N.A.  (formerly  known  as  NCNB Texas National Bank  and
          successor-in-interest  to  First  RepublicBank   Houston   N.A.),
          Whitney  National  Bank (formerly known Whitney National Bank  of
          New Orleans), and First  National  Bank  of  Commerce, originally
          dated January 31, 1986, as amended and restated  in  its entirety
          as of July 9, 1993 (as amended and restated as aforesaid,  and as
          thereafter amended, the "Loan Agreement").

          (3)  The  Company  is  currently  and  will be, immediately after
               giving  effect to Amendment No. ______  dated  ____________,
               199__,   to    the   Louisiana   Security   Agreement   (the
               "Amendment"), in  full compliance with all of the provisions
               of the Loan Agreement  (except  that, pursuant to Subsection
               9.06(a) of the Loan Agreement, the  Company  need  not be in
               compliance  with  Subsection  8.16(b)  of the Loan Agreement
               during a certain period commencing with the effectiveness of
               said Amendment).

          (4)  The  helicopters  to  be  released consist of  one  or  more
               complete helicopters or other Aviation Units.

          (5)  The  portion  of  the  Aircraft  remaining  subject  to  the
               Security Interest consist  of  complete helicopters or other
               Aviation  Units  in  the  operating  condition  required  by
               Section 7.09 of the Loan Agreement  to  be maintained by the
               Company.

          (6)  There is currently no Default or Event of  Default under the
               Loan  Agreement,  no  such  Default or Event of  Default  is
               imminent and no such Default  or  Event  of  Default will be
               precipitated  or continued by the transactions  contemplated
               herein.  The Company  is  currently,  and  immediately after
               giving  effect to the Amendment will be, in full  compliance
               with each of the Security Documents.

          (7)  Upon  satisfaction   of   the   requirements  set  forth  in
               Subsection 9.06(b) of the Loan Agreement,  the  Company will
               be  in  compliance  with  Subsection  8.16(b)  of  the  Loan
               Agreement.


               IN  TESTIMONY  WHEREOF,  we  hereunto set over our hands and
          affix  the  corporate  seal of the Company  on  this  __  day  of
          ___________, 199___.



                                        Carroll W. Suggs
                                        Chairman of the Board




                                        John H. Untereker
                                        Treasurer



          DAL02:70954.4
                                      EXHIBIT B
                                          TO
                                  SIXTH AMENDMENT TO
                                 AMENDED AND RESTATED
                                    LOAN AGREEMENT

          for Financing Statement Amendments]

                             [to come from Jones, Walker]

               1.   The parenthetical  in  paragraph I of Exhibit A of each
          of the Texas UCC-1 Financing Statements  and  the Louisiana UCC-1
          Financing  Statement  shall  be amended by deleting  the  current
          texas t thereof in its entirety and replacing said aparenthetical
          with the following parenthetical:

                              "(excluding,   however,   (a)   any   of  the
                              foregoing items incorporated or installed  in
                              or  attached  or apperteaining to any engine-
                              powered devidce  that  is used or intended by
                              to be used for flight in the air but wichhich
                              is   not   covered  by  paragraph II   hereof
                              (collectively,  the "excluded aircraft"); and
                              (b)  any of the foregoing  items  which  have
                              been incoropratedincorporated or installed in
                              any   excluded   aircraft   but   have   been
                              temporarily   removed   from   the   excluded
                              aircraft  for  the purpose of maintenance  or
                              repairs):"

               2.   The parenthetical in paragraph 3 of the UCC-1 Financing
          Statement shall be amended by deleting  the  current text thereof
          in  its  entirety  and  replacing  said  parenthetical  with  the
          following parenthetical:

               "(excluding,  however,  (a)  any  of  the  foregioing  items
               incorporated or installed in or attached  or appertaining to
               any  engine-powered  device that is used or intended  to  be
               used for lflight in the  air  but  which is not subject to a
               lien  or  security interest in favor of  the  Secured  Party
               (collectively, the "excluded aircraft"),; and (b) any of the
               foregoing items which have been incorporated or installed in
               any excluded  aircraft  buth   have been temporarily removed
               from the excluded aircraft for the purpose of maintenance or
               repairs)" ; and


          DAL02:70954.4