<DOCUMENT>
<TYPE>10-Q/A
<SEQUENCE>1
<FILENAME>f10-qa.txt
<DESCRIPTION>3Q 2003 AMENDMENT
<TEXT>


                          UNITED STATES
               SECURITIES AND EXCHANGE COMMISSION
                     Washington, D.C.  20549


                           FORM 10-Q/A

  (Mark One)
     [X]     QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                    THE SECURITIES EXCHANGE ACT OF 1934

             For The Quarterly Period Ended September 30, 2003

                               OR

     [ ]     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                    THE SECURITIES EXCHANGE ACT OF 1934

             For The Transition Period From _________ to _________.


Commission      Registrant; State of Incorporation;      IRS Employer
File Number     Address; and Telephone Number            Identification Number
-----------     -----------------------------------      ---------------------

1-13739         UNISOURCE ENERGY CORPORATION             86-0786732
                (An Arizona Corporation)
                One South Church Avenue, Suite 100
                Tucson, AZ  85701
                (520) 571-4000

1-5924          TUCSON ELECTRIC POWER COMPANY            86-0062700
                (An Arizona Corporation)
                One South Church Avenue, Suite 100
                Tucson, AZ  85701
                (520) 571-4000


     Indicate by check mark whether each registrant (1) has filed
all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months
(or for such shorter period that the registrant was required to
file such reports), and (2) has been subject to such filing
requirements for the past 90 days.
Yes  X     No
    ---       ---

     Indicate by check mark whether the registrant is an
accelerated filer (as defined in Rule 12b-2 of the Exchange Act).
     UniSource Energy Corporation      Yes   X   No
                                            ---     ---
     Tucson Electric Power Company     Yes       No  X
                                            ---     ---

     At November 6, 2003, 33,675,356 shares of UniSource Energy
Corporation's Common Stock, no par value (the only class of
Common Stock), were outstanding.

     At November 6, 2003, 32,139,555 shares of Tucson Electric
Power Company's common stock, no par value, were outstanding, of
which 32,139,434 were held by UniSource Energy Corporation.

<PAGE>

                        EXPLANATORY NOTE

     This amendment is being filed only to include the conformed
signatures as well as the date in Exhibit 32 that were
inadvertently omitted from the original filing.

                                2
<PAGE>

                           SIGNATURES


     Pursuant to the requirements of the Securities Exchange Act
of 1934, each registrant has duly caused this amendment to be
signed on its behalf by the undersigned thereunto duly authorized.
The signature for each undersigned company shall be deemed to
relate only to matters having reference to such company or its
subsidiaries.


                                   UNISOURCE ENERGY CORPORATION
                                   ----------------------------
                                           (Registrant)


Date:  November 13, 2003              /s/  Kevin P. Larson
                                   -----------------------------
                                           Kevin P. Larson
                                    Vice President and Principal
                                           Financial Officer


                                   TUCSON ELECTRIC POWER COMPANY
                                   -----------------------------
                                           (Registrant)


Date:  November 13, 2003              /s/  Kevin P. Larson
                                   -----------------------------
                                           Kevin P. Larson
                                    Vice President and Principal
                                           Financial Officer

                                3
<PAGE>

                          EXHIBIT INDEX

*32 - Statements of Corporate Officers (pursuant to Section 906
of the Sarbanes-Oxley Act of 2002).

*Pursuant to Item 601(b)(32)(ii) of Regulation S-K, this certificate
is not being filed for purposes of Section 18 of the Securities Act
of 1934.


                                4

</TEXT>
</DOCUMENT>