EXHIBIT 4(b)(3)

                               GUARANTEE AGREEMENT


                                     Between

                       Southwestern Electric Power Company
                                 (as Guarantor)


                                       and

                              The Bank of New York
                                  (as Trustee)


                                   dated as of


                                September 1, 2003


                            (SWEPCo Capital Trust I)




                             CROSS-REFERENCE TABLE 1

Section of Trust Indenture Act                                      Section of
of 1939, as amended                                        Guarantee Agreement
- ------------------------------------                       -------------------
310(a).................................................................4.01(a)
310(b)...........................................................4.01(c), 2.08
310(c)............................................................Inapplicable
311(a).................................................................2.02(b)
311(b).................................................................2.02(b)
311(c)............................................................Inapplicable
312(a).................................................................2.02(a)
312(b).................................................................2.02(b)
313.......................................................................2.03
314(a)....................................................................2.04
314(b)............................................................Inapplicable
314(c)....................................................................2.05
314(d)............................................................Inapplicable
314(e)........................................................1.01, 2.05, 3.02
314(f)..............................................................2.01, 3.02
315(a).................................................................3.01(d)
315(b)....................................................................2.07
315(c)....................................................................3.01
315(d).................................................................3.01(d)
315(e)............................................................Inapplicable
316(a)...........................................................5.04(i), 2.06
316(b)....................................................................5.03
316(c)....................................................................2.02
317(a) ...........................................................Inapplicable
317(b)............................................................Inapplicable
318(a).................................................................2.01(b)
318(b)....................................................................2.01
318(c).................................................................2.01(a)


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

1    This  Cross-Reference  Table  does  not  constitute  part of the  Guarantee
     Agreement  and shall not affect the  interpretation  of any of its terms or
     provisions.





                               GUARANTEE AGREEMENT

      This GUARANTEE AGREEMENT ("Guarantee Agreement"), dated as of September 1,
2003, between SOUTHWESTERN ELECTRIC POWER COMPANY, a Delaware corporation (the
"Guarantor"), and THE BANK OF NEW YORK, a New York banking corporation, as
trustee (the "Trustee"), for the benefit of the Holders (as defined herein) from
time to time of the Preferred Securities (as defined herein) of SWEPCO CAPITAL
TRUST I, a Delaware statutory trust (the Trust").

      WHEREAS, pursuant to an Amended and Restated Trust Agreement (the "Trust
Agreement"), dated as of September 1, 2003, among the Trustee, the other
Trustees named therein, Southwestern Electric Power Company, as Depositor, and
the holders of undivided beneficial interests in the assets of the Trust, the
Trust is issuing as of October 1, 2003, $110,000,000 aggregate liquidation
amount of its Flexible Trust Preferred Securities (the "Preferred Securities")
representing preferred undivided beneficial interests in the assets of the Trust
and having the terms set forth in the Trust Agreement;

      WHEREAS, the Preferred Securities will be issued by the Trust and the
proceeds thereof will be used to purchase the Junior Subordinated Debentures (as
defined in the Trust Agreement) of the Guarantor, which will be held by the
Trust as trust assets; and

      WHEREAS, as incentive for the Holders to purchase the Preferred
Securities, the Guarantor desires to irrevocably and unconditionally agree, to
the extent set forth herein, to pay to the Holders the Guarantee Payments (as
defined herein) and to make certain other payments on the terms and conditions
set forth herein.

      NOW, THEREFORE, in consideration of the payment for Preferred Securities
by each Holder (as defined herein) thereof, which payment the Guarantor hereby
agrees shall benefit the Guarantor, the Guarantor executes and delivers this
Guarantee Agreement for the benefit of the Holders from time to time of the
Common Securities (as defined herein) and the Preferred Securities.

                                    ARTICLE I
                                   DEFINITIONS

      SECTION 1.01. Definitions. As used in this Guarantee Agreement, the terms
set forth below shall, unless the context otherwise requires, have the following
meanings. Capitalized or otherwise defined terms used but not otherwise defined
herein shall have the meanings assigned to such terms in the Trust Agreement as
in effect on the date hereof.

      "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

      "Common Securities" means the securities representing common undivided
beneficial interests in the assets of the Trust.

      "Event of Default" means a failure by the Guarantor to perform any of its
payment obligations under this Guarantee Agreement or to perform any other
obligations if such default remains unremedied for 30 days.

      "Guarantee Payments" shall mean the following payments or distributions,
without duplication, with respect to the Common Securities and the Preferred
Securities, to the extent not paid or made by or on behalf of the Trust: (i) any
accrued and unpaid distributions that are required to be paid on such Common
Securities and Preferred Securities to the extent the Trust has funds on hand
available therefor to make such payment; (ii) the redemption price, including
all accrued and unpaid distributions to the date of redemption (the "Redemption
Price"), with respect to the Common Securities and Preferred Securities called
for redemption by the Trust to the extent that the Trust has funds on hand
available therefor sufficient to make such payment; and (iii) upon a voluntary
or involuntary dissolution, winding-up or liquidation of the Trust (other than
in connection with the distribution of Junior Subordinated Debentures to the
holders of Trust Securities or the redemption of all of the Preferred
Securities), the lesser of (a) the aggregate of the liquidation amount and all
accumulated and unpaid distributions on the Common Securities and the Preferred
Securities to the date of payment, to the extent the Trust has funds on hand
available therefor, and (b) the amount of assets of the Trust remaining
available for distribution to Holders in liquidation of the Trust (in either
case, the "Liquidation Distribution").

      "Holder" shall mean any holder, as registered on the books and records of
the Trust, of any Common Securities and Preferred Securities; provided, however,
that in determining whether the holders of the requisite percentage of Preferred
Securities have given any request, notice, consent or waiver hereunder, "Holder"
shall not include the Guarantor or any Affiliate of the Guarantor.

      "Indenture" means the Subordinated Indenture dated as of September 1,
2003, between the Guarantor, as Junior Subordinated Debenture Issuer, and The
Bank of New York, as trustee, as the same may be modified, amended or
supplemented in accordance with the applicable provisions thereof, including by
the First Supplemental Indenture dated as of October 1, 2003, by and between the
Guarantor and The Bank of New York, as trustee.

      "Majority in liquidation amount of Preferred Securities" means a vote by
Holder(s) of Preferred Securities, voting separately as a class, of more than
50% of the liquidation amount of all Preferred Securities outstanding at the
time of determination.

      "Officers' Certificate" means a certificate signed by the Chairman of the
Board, the President or a Vice President, and by the Treasurer, an Assistant
Treasurer, the Secretary or an Assistant Secretary, of the Guarantor, and
delivered to the Trustee. Any Officers' Certificate delivered with respect to
compliance with a condition or covenant provided for in this Guarantee Agreement
shall include:

          (a)  a statement that each officer  signing the Officers'  Certificate
               has read the covenant or condition and the  definitions  relating
               thereto;

          (b)  a brief  statement of the nature and scope of the  examination or
               investigation   undertaken  by  each  officer  in  rendering  the
               Officers' Certificate;

          (c)  a statement  that each such officer has made such  examination or
               investigation  as, in such  officer's  opinion,  is  necessary to
               enable such officer to express an informed  opinion as to whether
               or not such covenant or condition has been complied with; and

          (d)  a statement as to whether,  in the opinion of each such  officer,
               such condition or covenant has been complied with.

      "Person" means any individual, corporation, partnership, limited liability
company, joint venture, trust, unincorporated organization or government or any
agency or political subdivision thereof.

      "Responsible Officer" means, with respect to the Trustee, any vice
president, any assistant vice president, the secretary, any assistant secretary,
the treasurer, any assistant treasurer, any senior trust officer, trust officer
or assistant trust officer or any other officer of the Corporate Trust
Department of the Trustee customarily performing functions similar to those
performed by any of the above designated officers and also means, with respect
to a particular corporate trust matter, any other officer to whom such matter is
referred because of that officer's knowledge of and familiarity with the
particular subject.

      "Successor Trustee" means a successor Trustee possessing the
qualifications to act as Trustee under Section 4.01.

      "The Bank of New York" means The Bank of New York, a New York banking
corporation.

      "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended.

      "Trustee" means The Bank of New York until a Successor Trustee has been
appointed and has accepted such appointment pursuant to the terms of this
Guarantee Agreement and thereafter means each such Successor Trustee.



                                   ARTICLE II
                               TRUST INDENTURE ACT

      SECTION 2.01.     Trust Indenture Act; Application.

(a)  This  Guarantee  Agreement  is  subject  to the  provisions  of  the  Trust
     Indenture Act that are required to be part of this Guarantee  Agreement and
     shall, to the extent applicable, be governed by such provisions; and

(b)  If and to the extent that any provision of this Guarantee Agreement limits,
     qualifies  or  conflicts  with the duties  imposed by Sections  310 to 317,
     inclusive, of the Trust Indenture Act, such imposed duties shall control.

      SECTION 2.02.     Lists of Holders of Securities.

(a)  The  Guarantor  shall  furnish or cause to be  furnished to the Trustee (a)
     semiannually, not later than April 1 and October 1 in each year, a list, in
     such form as the Trustee may reasonably require, of the names and addresses
     of the Holders ("List of Holders") as of a date not more than 15 days prior
     to the time  such list is  furnished,  and (b) at such  other  times as the
     Trustee  may  request in  writing,  within 30 days after the receipt by the
     Guarantor of any such request, a List of Holders as of a date not more than
     15 days  prior to the time  such  list is  furnished;  provided  that,  the
     Guarantor  shall not be  obligated  to provide  such List of Holders at any
     time the List of  Holders  does not  differ  from the most  recent  List of
     Holders given to the Trustee by the Guarantor or at any time the Trustee is
     the Securities Registrar under the Trust Agreement. The Trustee may destroy
     any List of  Holders  previously  given to it on  receipt  of a new List of
     Holders.

(b)  The Trustee shall comply with its obligations under Sections 311(a), 311(b)
     and 312(b) of the Trust Indenture Act.

      SECTION 2.03. Reports by the Trustee. Within 60 days after May 15 of each
year commencing May 15, 2004, the Trustee shall provide to the Holders of the
Preferred Securities such reports as are required by Section 313(a) of the Trust
Indenture Act, if any, in the form and in the manner provided by Section 313 of
the Trust Indenture Act. The Trustee shall also comply with the other
requirements of Section 313 of the Trust Indenture Act.

      SECTION 2.04. Periodic Reports to Trustee. The Guarantor shall provide to
the Trustee such documents, reports and information as required by Section 314
of the Trust Indenture Act (if any) in the form, in the manner and at the times
required by Section 314 of the Trust Indenture Act, and shall provide, within
120 days after the end of each of its fiscal years, the compliance certificate
required by Section 314(a)(4) of the Trust Indenture Act in the form and in the
manner required by such Section. Delivery of such reports, information and
documents to the Trustee is for informational purposes only and the Trustee's
receipt of such reports, information and documents shall not constitute
constructive notice of any information contained therein or determinable from
information contained therein.

      SECTION 2.05. Evidence of Compliance with Conditions Precedent. The
Guarantor shall provide to the Trustee such evidence of compliance with any
conditions precedent, if any, provided for in this Guarantee Agreement,
including an Officers' Certificate and an opinion of counsel that relate to any
of the matters set forth in Section 314(c) of the Trust Indenture Act. Any
certificate or opinion required to be given by an officer pursuant to Section
314(c)(1) may be given in the form of an Officers' Certificate.

      SECTION 2.06. Events of Default; Waiver. The Holders of a Majority in
liquidation amount of Preferred Securities may, by vote, on behalf of all of the
Holders, waive any past Event of Default and its consequences. Upon such waiver,
any such Event of Default shall cease to exist, and any Event of Default arising
therefrom shall be deemed to have been cured, for every purpose of this
Guarantee Agreement, but no such waiver shall extend to any subsequent or other
default or Event of Default or impair any right consequent thereon.

      SECTION 2.07.     Event of Default; Notice.

(a)  The  Trustee  shall,  within 90 days  after the  occurrence  of an Event of
     Default,  transmit by mail,  first class postage  prepaid,  to the Holders,
     notices of all Events of Default actually known to the Trustee, unless such
     defaults  have been cured before the giving of such notice,  provided  that
     the Trustee shall be protected in withholding such notice if and so long as
     the board of directors,  the executive  committee,  or a trust committee of
     directors  and/or  Responsible  Officers  of  the  Trustee  in  good  faith
     determines  that the  withholding of such notice is in the interests of the
     Holders.

(b)  The Trustee  shall not be deemed to have  knowledge of any Event of Default
     unless the Trustee shall have  received  written  notice,  or a Responsible
     Officer charged with the  administration  of the Trust Agreement shall have
     obtained written notice, of such Event of Default.

      SECTION 2.08.     Conflicting Interests.

      The Trust Agreement shall be deemed to be specifically described in this
Guarantee Agreement for the purposes of clause (i) of the first proviso
contained in Section 310(b) of the Trust Indenture Act.


                                   ARTICLE III
                      POWERS, DUTIES AND RIGHTS OF TRUSTEE

      SECTION 3.01.     Powers and Duties of the Trustee.

(a)  This  Guarantee  Agreement  shall be held by the Trustee for the benefit of
     the Holders, and the Trustee shall not transfer this Guarantee Agreement to
     any Person except the Trustee shall assign rights  hereunder to a Holder to
     the extent such  assignment is necessary to exercise  such Holder's  rights
     pursuant to Section 5.04 or to a Successor  Trustee upon acceptance by such
     Successor  Trustee of its  appointment  to act as  Successor  Trustee.  The
     right,  title and interest of the Trustee shall  automatically  vest in any
     Successor  Trustee,  and such  vesting  and  cessation  of  title  shall be
     effective  whether or not  conveyancing  documents  have been  executed and
     delivered pursuant to the appointment of such Successor Trustee.

(b)  If an Event of Default has occurred and is  continuing,  the Trustee  shall
     enforce this Guarantee Agreement for the benefit of the Holders.

(c)  The Trustee,  before the  occurrence  of any Event of Default and after the
     curing or waiving of all Events of Default  that may have  occurred,  shall
     undertake to perform only such duties as are specifically set forth in this
     Guarantee  Agreement,  and no  implied  covenants  shall be read  into this
     Guarantee  Agreement  against the Trustee.  In case an Event of Default has
     occurred (that has not been cured or waived pursuant to Section 2.06),  the
     Trustee  shall  exercise such of the rights and powers vested in it by this
     Guarantee  Agreement,  and use the same  degree  of care  and  skill in its
     exercise  thereof,  as a prudent  person  would  exercise  or use under the
     circumstances in the conduct of his or her own affairs.

(d)  No provision of this Guarantee  Agreement shall be construed to relieve the
     Trustee from  liability  for its own  negligent  action,  its own negligent
     failure to act, or its own willful misconduct, except that:

     (i)  prior to the  occurrence  of any Event of Default and after the curing
          or waiving of all such Events of Default that may have occurred:

          (A)  the duties and  obligations  of the Trustee  shall be  determined
               solely by the express provisions of this Guarantee Agreement, and
               the Trustee  shall not be liable  except for the  performance  of
               such duties and obligations as are specifically set forth in this
               Guarantee Agreement; and

          (B)  in the  absence  of bad  faith  on the part of the  Trustee,  the
               Trustee may conclusively  rely, as to the truth of the statements
               and the correctness of the opinions expressed  therein,  upon any
               certificates or opinions  furnished to the Trustee and conforming
               to the requirements of this Guarantee Agreement;  but in the case
               of any such certificates or opinions that by any provision hereof
               are  specifically  required to be furnished  to the Trustee,  the
               Trustee  shall be under a duty to examine  the same to  determine
               whether or not they conform to the requirements of this Guarantee
               Agreement;

     (ii) the Trustee shall not be liable for any error of judgment made in good
          faith by a  Responsible  Officer  of the  Trustee,  unless it shall be
          proved that the Trustee was  negligent in  ascertaining  the pertinent
          facts upon which such judgment was made;

     (iii)the Trustee  shall not be liable with  respect to any action  taken or
          omitted  to be  taken  by it in good  faith  in  accordance  with  the
          direction  of the Holders of a Majority in  liquidation  amount of the
          Preferred  Securities  relating  to the  time,  method  and  place  of
          conducting any proceeding for any remedy available to the Trustee,  or
          exercising  any trust or power  conferred  upon the Trustee under this
          Guarantee Agreement; and

     (iv) no provision of this Guarantee  Agreement shall require the Trustee to
          expend or risk its own funds or  otherwise  incur  personal  financial
          liability in the  performance  of any of its duties or in the exercise
          of any of its rights or powers,  if the Trustee shall have  reasonable
          grounds for believing that the repayment of such funds or liability is
          not  reasonably  assured  to it  under  the  terms  of this  Guarantee
          Agreement or adequate  indemnity against such risk or liability is not
          reasonably assured to it.

      SECTION 3.02.     Certain Rights of Trustee.

(a)  Subject to the provisions of Section 3.01:

     (i)  the  Trustee may  conclusively  rely and shall be fully  protected  in
          acting or  refraining  from acting upon any  resolution,  certificate,
          statement,  instrument,  opinion, report, notice, request,  direction,
          consent, order, bond, debenture,  note, other evidence of indebtedness
          or other  paper or  document  believed by it to be genuine and to have
          been signed, sent or presented by the proper party or parties;

     (ii) any direction or act of the Guarantor  contemplated  by this Guarantee
          Agreement shall be sufficiently evidenced by an Officers' Certificate;

     (iii)whenever,  in the  administration  of this  Guarantee  Agreement,  the
          Trustee shall deem it desirable that a matter be proved or established
          before taking, suffering or omitting any action hereunder, the Trustee
          (unless other evidence is herein specifically  prescribed) may, in the
          absence of bad faith on its part,  request and rely upon an  Officers'
          Certificate  which,  upon receipt of such  request,  shall be promptly
          delivered by the Guarantor;

     (iv) the Trustee may consult with  counsel or other  experts of its choice,
          and the  written  advice or opinion of such  counsel or other  experts
          shall be full and complete  authorization and protection in respect of
          any action  taken,  suffered or omitted by it  hereunder in good faith
          and in  accordance  with such advice or opinion;  such  counsel may be
          counsel to the Guarantor or any of its  Affiliates and may include any
          of its employees; the Trustee shall have the right at any time to seek
          instructions concerning the administration of this Guarantee Agreement
          from any court of competent jurisdiction;

     (v)  the Trustee shall be under no obligation to exercise any of the rights
          or powers vested in it by this  Guarantee  Agreement at the request or
          direction of any Holder, unless such Holder shall have provided to the
          Trustee  such  adequate  security  and  indemnity  as would  satisfy a
          reasonable  person in the  position of the Trustee  against the costs,
          expenses (including attorneys' fees and expenses) and liabilities that
          might be incurred by it in complying  with such request or  direction,
          including such reasonable advances as may be requested by the Trustee;
          provided that nothing  contained in this Section  3.02(a)(v)  shall be
          taken to  relieve  the  Trustee,  upon the  occurrence  of an Event of
          Default, of its obligation to exercise the rights and powers vested in
          it by this Guarantee Agreement;

     (vi) the  Trustee  shall  not be bound to make any  investigation  into the
          facts or matters  stated in any  resolution,  certificate,  statement,
          instrument,  opinion,  report, notice,  request,  direction,  consent,
          order, bond, debenture,  note, other evidence of indebtedness or other
          paper or document,  but the Trustee, in its discretion,  may make such
          further inquiry or investigation  into such facts or matters as it may
          see fit;

     (vii)the  Trustee  may  execute  any of the trusts or powers  hereunder  or
          perform any duties  hereunder  either directly or by or through agents
          or  attorneys,  and  the  Trustee  shall  not be  responsible  for any
          misconduct  or  negligence  on the  part  of  any  agent  or  attorney
          appointed with due care by it hereunder;

     (viii) whenever  in the  administration  of this  Guarantee  Agreement  the
          Trustee shall deem it desirable to receive  instructions  with respect
          to enforcing any remedy or right or taking any other action hereunder,
          the Trustee (i) may request  instructions  from the Holders,  (ii) may
          refrain  from  enforcing  such  remedy or right or taking  such  other
          action  until  such  instructions  are  received,  and (iii)  shall be
          protected in acting in accordance with such instructions;

     (ix) the Trustee  shall not be liable for any action  taken,  suffered,  or
          omitted to be taken by it in good faith and reasonably  believed by it
          to be  authorized  or  within  the  discretion  or  rights  or  powers
          conferred upon it by this Guarantee Agreement; and

     (x)  the rights, privileges,  protections, immunities and benefits given to
          the  Trustee,  including  ,  without  limitation,  its  rights  to  be
          indemnified, are extended to, and shall be enforceable by, the Trustee
          in each of its  respective  capacities  hereunder,  and to each agent,
          custodian and other Person employed to act hereunder.

(b)  No provision of this Guarantee Agreement shall be deemed to impose any duty
     or  obligation  on the Trustee to perform  any act or acts or exercise  any
     right,  power,  duty  or  obligation  conferred  or  imposed  on it in  any
     jurisdiction in which it shall be illegal, or in which the Trustee shall be
     unqualified or incompetent in accordance  with  applicable  law, to perform
     any  such  act or  acts or to  exercise  any  such  right,  power,  duty or
     obligation. No permissive power or authority available to the Trustee shall
     be construed to be a duty.

      SECTION 3.03.     Compensation; Fees; Indemnity.

      The Guarantor agrees:

(a)  to pay to the Trustee  from time to time  reasonable  compensation  for all
     services rendered by the Trustee hereunder (which compensation shall not be
     limited by any provision of law in regard to the  compensation of a trustee
     of an express trust);

(b)  except as otherwise  expressly  provided  herein,  to reimburse the Trustee
     upon  request  for all  reasonable  expenses,  disbursements  and  advances
     incurred or made by the Trustee in  accordance  with any  provision of this
     Guarantee Agreement (including the reasonable compensation and the expenses
     and  disbursements  of its agents and  counsel),  except any such  expense,
     disbursement  or advance as may be  attributable  to its  negligence or bad
     faith; and

(c)  to indemnify the Trustee for, and to hold the Trustee harmless against, any
     and all  loss,  damage,  claims,  liability  or  expense  incurred  without
     negligence or bad faith on its part,  arising out of or in connection  with
     the acceptance or administration of this Guarantee Agreement, including the
     costs and  expenses of defending  itself  against any claim or liability in
     connection  with the exercise or performance of any of its powers or duties
     hereunder.

      The provisions of this Section 3.03 shall survive the termination of this
Guarantee Agreement.

                                   ARTICLE IV
                                     TRUSTEE

      SECTION 4.01.     Trustee; Eligibility.

(a)  There shall at all times be a Trustee which shall:

     (i)  not be an Affiliate of the Guarantor; and

     (ii) be a corporation  organized and doing  business  under the laws of the
          United  States of America or any State or Territory  thereof or of the
          District of  Columbia,  or a  corporation  or Person  permitted by the
          Securities and Exchange Commission to act as an institutional  trustee
          under the Trust Indenture Act,  authorized under such laws to exercise
          corporate  trust powers,  having a combined  capital and surplus of at
          least  50  million  U.S.   dollars   ($50,000,000),   and  subject  to
          supervision or examination by Federal, State,  Territorial or District
          of  Columbia  authority.  If such  corporation  publishes  reports  of
          condition at least annually, pursuant to law or to the requirements of
          the supervising or examining  authority  referred to above,  then, for
          the purposes of this  Section  4.01(a)(ii),  the combined  capital and
          surplus of such corporation shall be deemed to be its combined capital
          and surplus as set forth in its most  recent  report of  condition  so
          published.

(b)  If at any time the  Trustee  shall  cease to be  eligible  to so act  under
     Section  4.01(a),  the Trustee shall  immediately  resign in the manner and
     with the effect set out in Section 4.02(c).

(c)  If the Trustee has or shall acquire any  "conflicting  interest" within the
     meaning of Section  310(b) of the Trust  Indenture  Act,  the  Trustee  and
     Guarantor  shall in all  respects  comply  with the  provisions  of Section
     310(b) of the Trust  Indenture  Act,  subject to the rights of the  Trustee
     under the penultimate paragraph thereof.

      SECTION 4.02.     Appointment, Removal and Resignation of Trustee.

(a)  Subject to Section 4.02(b), the Trustee may be appointed or removed without
     cause at any time by the Guarantor.

(b)  The  Trustee  shall  not be  removed  until a  Successor  Trustee  has been
     appointed and has accepted such appointment by written instrument  executed
     by such Successor Trustee and delivered to the Guarantor.

(c)  The Trustee appointed to office shall hold office until a Successor Trustee
     shall have been appointed or until its removal or resignation.  The Trustee
     may resign from office (without need for prior or subsequent accounting) by
     an  instrument  in writing  executed by the Trustee  and  delivered  to the
     Guarantor,  which  resignation  shall  not take  effect  until a  Successor
     Trustee has been appointed and has accepted such  appointment by instrument
     in  writing  executed  by  such  Successor  Trustee  and  delivered  to the
     Guarantor and the resigning Trustee.

(d)  If no Successor Trustee shall have been appointed and accepted  appointment
     as  provided  in this  Section  4.02  within 60 days after  delivery to the
     Guarantor  of an  instrument  of  resignation,  the  resigning  Trustee may
     petition any court of competent jurisdiction for appointment of a Successor
     Trustee.  Such court may thereupon,  after prescribing such notice, if any,
     as it may deem proper, appoint a Successor Trustee.


                                    ARTICLE V
                                    GUARANTEE

      SECTION 5.01. Guarantee. The Guarantor irrevocably and unconditionally
agrees to pay in full to the Holders the Guarantee Payments (without duplication
of amounts theretofore paid by or on behalf of the Trust), as and when due,
regardless of any defense, right of set-off or counterclaim which the Guarantor
may have or assert against any Person, other than the defense of payment. The
Guarantor's obligation to make a Guarantee Payment may be satisfied by direct
payment of the required amounts by the Guarantor to the Holders or by causing
the Trust to pay such amounts to the Holders.

      SECTION 5.02. Waiver of Notice and Demand. The Guarantor hereby waives
notice of acceptance of this Guarantee Agreement and of any liability to which
it applies or may apply, presentment, demand for payment, any right to require a
proceeding first against the Trust or any other Person before proceeding against
the Guarantor, protest, notice of nonpayment, notice of dishonor, notice of
redemption and all other notices and demands.

      SECTION 5.03. Obligations Not Affected. The obligation of the Guarantor to
make the Guarantee Payments under this Guarantee Agreement shall in no way be
affected or impaired by reason of the happening from time to time of any of the
following:

(a)  the release or waiver, by operation of law or otherwise, of the performance
     or observance by the Trust of any express or implied  agreement,  covenant,
     term or condition  relating to the Preferred  Securities to be performed or
     observed by the Trust;

(b)  the extension of time for the payment by the Trust of all or any portion of
     the Distributions,  Redemption Price, Liquidation Distribution or any other
     sums payable under the terms of the  Preferred  Securities or the extension
     of time for the performance of any other obligation under,  arising out of,
     or in connection with, the Preferred Securities (other than an extension of
     time  for  payment  of   Distributions,   Redemption   Price,   Liquidation
     Distribution  or other sum payable that  results from the  extension of any
     interest payment period on the Junior Subordinated  Debentures permitted by
     the Indenture);

(c)  any  failure,  omission,  delay  or lack of  diligence  on the  part of the
     Holders to  enforce,  assert or  exercise  any right,  privilege,  power or
     remedy  conferred  on the Holders  pursuant  to the terms of the  Preferred
     Securities,  or any action on the part of the Trust granting  indulgence or
     extension of any kind;

(d)  the  voluntary  or  involuntary  liquidation,   dissolution,  sale  of  any
     collateral,  receivership,   insolvency,  bankruptcy,  assignment  for  the
     benefit  of  creditors,   reorganization,   arrangement,   composition   or
     readjustment of debt of, or other similar proceedings affecting,  the Trust
     or any of the assets of the Trust;

(e)  any invalidity of, or defect or deficiency in, the Preferred Securities;

(f)  the settlement or compromise of any obligation  guaranteed hereby or hereby
     incurred; or

(g)  any other circumstance  whatsoever that might otherwise  constitute a legal
     or equitable  discharge  or defense of a guarantor,  it being the intent of
     this Section 5.03 that the obligations of the Guarantor  hereunder shall be
     absolute and unconditional under any and all circumstances.

      There shall be no obligation of the Holders to give notice to, or obtain
consent of, the Guarantor with respect to the happening of any of the foregoing.

      SECTION 5.04. Rights of Holders. The Guarantor expressly acknowledges
that: (i) this Guarantee Agreement will be deposited with the Trustee to be held
for the benefit of the Holders; (ii) the Trustee has the right to enforce this
Guarantee Agreement on behalf of the Holders; (iii) the Holders of a Majority in
liquidation amount of the Preferred Securities have the right to direct the
time, method and place of conducting any proceeding for any remedy available to
the Trustee in respect of this Guarantee Agreement or exercising any trust or
power conferred upon the Trustee under this Guarantee Agreement; and (iv) any
Holder may institute a legal proceeding directly against the Guarantor to
enforce its rights under this Guarantee Agreement, without first instituting a
legal proceeding against or requesting or directing that action be taken by the
Trustee or any other Person; it being understood and intended that no one or
more of such Holders shall have any right in any manner whatsoever by virtue of,
or by availing of, any provision of this Guarantee Agreement to affect, disturb
or prejudice the rights of any other of such Holders or to obtain or to seek to
obtain priority or preference over any other of such Holders or to enforce any
right under this Guarantee Agreement, except in the manner herein provided and
for the equal and ratable benefit of all of such Holders.

      SECTION 5.05. Guarantee of Payment. This Guarantee Agreement creates a
guarantee of payment and not of collection. This Guarantee Agreement will not be
discharged except by payment of the Guarantee Payments in full (without
duplication) or upon the distribution of Junior Subordinated Debentures to the
Holders in exchange for all of the Preferred Securities.

      SECTION 5.06. Subrogation. The Guarantor shall be subrogated to all (if
any) rights of the Holders against the Trust in respect of any amounts paid to
the Holders by the Guarantor under this Guarantee Agreement; provided, however,
that the Guarantor shall not (except to the extent required by mandatory
provisions of law) be entitled to enforce or exercise any rights which it may
acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all cases as a result of payment under this Guarantee Agreement,
if, at the time of any such payment, any amounts of Guarantee Payments are due
and unpaid under this Guarantee Agreement. If any amount shall be paid to the
Guarantor in violation of the preceding sentence, the Guarantor agrees to hold
such amount in trust for the Holders and to pay over such amount to the Holders.

      SECTION 5.07. Independent Obligations. The Guarantor acknowledges that its
obligations hereunder are independent of the obligations of the Trust with
respect to the Preferred Securities and that the Guarantor shall be liable as
principal and as debtor hereunder to make Guarantee Payments pursuant to the
terms of this Guarantee Agreement notwithstanding the occurrence of any event
referred to in subsections (a) through (g), inclusive, of Section 5.03 hereof.

                                   ARTICLE VI
                                  SUBORDINATION

      SECTION 6.01. Subordination. This Guarantee Agreement will constitute an
unsecured obligation of the Guarantor and will rank (i) subordinate and junior
in right of payment to all other liabilities of the Guarantor, including the
Junior Subordinated Debentures, except those obligations or liabilities made
pari passu or subordinate by their terms; (ii) pari passu with the most senior
preferred or preference stock now or hereafter issued by the Guarantor and with
any guarantee now or hereafter entered into by the Guarantor in respect of any
preferred or preference securities of any Affiliate of the Guarantor; and (iii)
senior to all common stock of the Guarantor.

                                   ARTICLE VII
                                   TERMINATION

      SECTION 7.01. Termination. This Guarantee Agreement shall terminate and be
of no further force and effect upon: (i) full payment of the Redemption Price of
all Preferred Securities; (ii) the distribution of Junior Subordinated
Debentures to the Holders in exchange for all of the Preferred Securities; or
(iii) full payment of the amounts payable in accordance with the Trust Agreement
upon liquidation of the Trust. Notwithstanding the foregoing, this Guarantee
Agreement will continue to be effective or will be reinstated, as the case may
be, if at any time any Holder must restore payment of any sums paid with respect
to Preferred Securities or under this Guarantee Agreement.

                                  ARTICLE VIII
                                  MISCELLANEOUS

      SECTION 8.01. Successors and Assigns. All guarantees and agreements
contained in this Guarantee Agreement shall bind the successors, assigns,
receivers, trustees and representatives of the Guarantor and shall inure to the
benefit of the Holders of the Preferred Securities then outstanding. Except in
connection with a consolidation, merger, conveyance, transfer, or lease
involving the Guarantor that is permitted under Article Eleven of the Indenture,
the Guarantor shall not assign its obligations hereunder.

      SECTION 8.02. Amendments. Except with respect to any changes which do not
materially adversely affect the rights of Holders (in which case no consent of
Holders will be required), this Guarantee Agreement may only be amended with the
prior approval of the Holders of a Majority in liquidation amount of the
Preferred Securities. The provisions of Article VI of the Trust Agreement
concerning meetings of Holders shall apply to the giving of such approval.

      SECTION 8.03. Notices. Any notice, request or other communication required
or permitted to be given hereunder shall be in writing, duly signed by the party
giving such notice, and delivered, telecopied or mailed by first class mail as
follows:

(a)  if given to the  Guarantor,  to the  address  set forth below or such other
     address as the Guarantor may give notice of to the Trustee and the Holders:

            Southwestern Electric Power Company
            1 Riverside Plaza
            Columbus, Ohio 43215
            Facsimile No.: (614) 716-1687
            Attn:  Treasurer

(b)  if given to the Trust,  in care of the  Trustee,  or to the  Trustee at the
     Trust's (and the  Trustee's)  address set forth below or such other address
     as the Trustee on behalf of the Trust may give notice to the Holders:

            SWEPCo Capital Trust I
            c/o  The Bank of New York
            101 Barclay Street - 8W
            New York, NY  10286
            Facsimile No.:  (212) 815-5707
            Attn:  Corporate Trust Administration

(c)  if given to any  Holder,  at the address set forth on the books and records
     of the Trust.

      All notices hereunder shall be deemed to have been given when received in
person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid except that if a notice or other document is refused delivery or
cannot be delivered because of a changed address of which no notice was given,
such notice or other document shall be deemed to have been delivered on the date
of such refusal or inability to deliver.

      SECTION 8.04. Benefit. This Guarantee Agreement is solely for the benefit
of the Holders and, subject to Section 3.01(a), is not separately transferable
from the Preferred Securities.

      SECTION 8.05. Interpretation. In this Guarantee Agreement, unless the
context otherwise requires:

(a)  capitalized  terms used in this Guarantee  Agreement but not defined in the
     preamble  hereto have the respective  meanings  assigned to them in Section
     1.01;

(b)  a term defined  anywhere in this  Guarantee  Agreement has the same meaning
     throughout;

(c)  all references to "the Guarantee  Agreement" or "this Guarantee  Agreement"
     are to this Guarantee  Agreement as modified,  supplemented or amended from
     time to time;

(d)  all references in this Guarantee  Agreement to Articles and Sections are to
     Articles  and  Sections  of  this  Guarantee   Agreement  unless  otherwise
     specified;

(e)  a term defined in the Trust Indenture Act has the same meaning when used in
     this  Guarantee  Agreement  unless  otherwise  defined  in  this  Guarantee
     Agreement or unless the context otherwise requires;

(f)  reference to the singular includes the plural and vice versa; and

(g)  the  masculine,  feminine or neuter  genders used herein shall  include the
     masculine, feminine and neuter genders.

      SECTION 8.06. Governing Law. THIS GUARANTEE AGREEMENT SHALL BE GOVERNED BY
AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE
OF NEW YORK. THE GUARANTOR HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF THE
UNITED STATES DISTRICT COURT FOR THE SOUTHERN DISTRICT OF NEW YORK AND ANY COURT
IN THE STATE OF NEW YORK LOCATED IN THE CITY AND COUNTY OF NEW YORK IN ANY
ACTION, SUIT OR PROCEEDING BROUGHT AGAINST IT AND RELATED TO OR IN CONNECTION
WITH THIS GUARANTEE AGREEMENT OR THE TRANSACTIONS CONTEMPLATED THEREBY, AND TO
THE EXTENT PERMITTED BY APPLICABLE LAW, THE GUARANTOR HEREBY WAIVES AND AGREES
NOT TO ASSERT BY WAY OF MOTION, AS A DEFENSE OR OTHERWISE IN ANY SUCH SUIT,
ACTION OR PROCEEDING, ANY CLAIM THAT IT IS NOT PERSONALLY SUBJECT TO THE
JURISDICTION OF SUCH COURTS, THAT THE SUIT, ACTION OR PROCEEDING IS BROUGHT IN
AN INCONVENIENT FORUM, THAT THE VENUE OF THE SUIT, ACTION OR PROCEEDING IS
IMPROPER, OR THAT THIS GUARANTEE AGREEMENT OR ANY DOCUMENT OR ANY INSTRUMENT
REFERRED TO HEREIN OR THE SUBJECT MATTER HEREOF MAY NOT BE LITIGATED IN OR BY
SUCH COURTS. THE GUARANTOR AGREES THAT SERVICE OF PROCESS MAY BE MADE UPON IT BY
CERTIFIED OR REGISTERED MAIL TO THE ADDRESS FOR NOTICES SET FORTH IN THIS
GUARANTEE AGREEMENT OR ANY METHOD AUTHORIZED BY THE LAWS OF NEW YORK.

      This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.




      THIS GUARANTEE AGREEMENT is executed as of the day and year first above
written.

SOUTHWESTERN ELECTRIC POWER COMPANY

By:   /s/ Wendy G. Hargus
Name: Wendy G. Hargus
Title: Assistant Treasurer
                                    THE BANK OF NEW YORK

                                    By:   /s/ Joseph A. Lloret
                                    Name: Joseph A. Lloret
                                    Title:Assistant Treasurer