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

                                    FORM 10-K

                   Annual Report Pursuant to Section 13 or 15(d)
                      of the Securities Exchange Act of 1934

                             For the fiscal year ended
                                 December 31, 2004

                        Commission file number: 333-111379-26

                          Greenwich Capital Acceptance, Inc.,
                 (as Depositor, under the Pooling and Servicing
              Agreement dated as of August 1, 2004 providing for the
                   issuance of FNBA Mortgage Loan Trust 2004-AR1
                 Mortgage Pass-Through Certificates, Series 2004-AR1
               (Exact name of Registrant as specified in its Charter)

                Delaware                                    06-1199884
           (State or other jurisdiction                  (I.R.S. Employer
           incorporation or organization)              Identification Number)

           600 Steamboat Road
          Greenwich, Connecticut                         06830
         (Address of principal executive offices)      (Zip Code)

            Registrant's telephone number, including area code:
                               (203) 625-2700

          Securities registered pursuant to Section 12(b) of the Act:
                                     none

          Securities registered pursuant to Section 12(g) of the Act:
                                     none.

     Indicate by check mark whether the 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 if disclosure of delinquent filers pursuant to
     Item 405 of Regulation S-K is not contained herein, and will not be
     contained, to the best of the Registrant's knowledge, in definitive proxy
     or information statements incorporated by reference in Part III of the
     Form 10-K or any amendment to this Form 10-K.         [x]

     Indicate by check mark whether the registrant is an accelerated filer
     (as defined in Rule 12b-2 of the Act).  Yes   No x

     State the aggregate market value of the voting and non-voting common
     equity held by non-affiliates computed by reference to the price at
     which the common equity was last sold, or the average bid and asked
     price of such common equity, as of the of the last business day of
     the registrant's most recently completed second fiscal quarter
     NOT APPLICABLE.

     Indicate the number of shares outstanding of each of the registrant's
     classes of common stock, as of December 31,2004.
     NOT APPLICABLE

     DOCUMENTS INCORPORATED BY REFERENCE
     None

     PART I

     ITEM 1.  Business.

     Not Applicable

     ITEM 2.  Properties.

     Not Applicable

     ITEM 3.  Legal Proceedings.

     None.

     ITEM 4.  Submission of Matters to a Vote of Security Holders.

     No matters were submitted to a vote of Certificateholders during the
     fiscal year covered by this report.

     PART II

     ITEM 5.  Market for Registrant's Common Equity and Related Stockholder
     Matters and Issuer Purchases of Equity Securities.

     The Trust does not issue stock.

     There is currently no established public trading market for Registrant's
     Certificates.  Registrant believes the Certificates are traded primarily
     in intra-dealer markets and non-centralized inter-dealer markets.

     As of December 31, 2004 the number of registered holders of all class of
     Certificates was 6.

     ITEM 6.  Selected Financial Data.

     Not Applicable

     ITEM 7.  Management's Discussion and Analysis of Financial Condition and
     Results of Operations.

     Not Applicable

     ITEM 7A.  Quantitative and Qualitative Disclosures About Market Risk.

     Not Applicable

     ITEM 8.  Financial Statements and Supplementary Data.

     Not Applicable

     ITEM 9.  Changes in and Disagreements with Accountants on Accounting and
     Financial Disclosure.

     None.

     ITEM 9A  Controls and Procedures

     Not Applicable

     ITEM 9B Other Information

     None

     PART III

     ITEM 10.  Directors and Executive Officers of Registrant.

     Not Applicable.

     ITEM 11.  Executive Compensation.

     Not Applicable.

     ITEM 12.  Security Ownership of Certain Beneficial Owners and Management.

     Security ownership of certain beneficial owners.  Under the Pooling
     and Servicing Agreement governing the Trust, the holders of the
     Certificates generally do not have the right to vote and are prohibited
     from taking part in management of the Trust.  For purposes of this Item
     and Item 13 only, however, the Certificateholders are treated as "voting
     security" holders.

     As of December 31, 2004, the following are the only persons known to the
     Registrant to be the beneficial owners of more than 5% of any class of
     voting securities:

     CEDEFAST
     CEDE & CO FAST
     P.O. BOX 20
     BOWLING GREEN STATION
     NEW YORK, NEW YORK, 10274
     SERIES 2004-AR1
     CLASS A-1
     $40,000,000
     100.0%

     CEDEFAST
     CEDE & CO FAST
     P.O. BOX 20
     BOWLING GREEN STATION
     NEW YORK, NEW YORK, 10274
     SERIES 2004-AR1
     CLASS A-2
     $144,292,000
     100.0%

     CEDEFAST
     CEDE & CO FAST
     P.O. BOX 20
     BOWLING GREEN STATION
     NEW YORK, NEW YORK, 10274
     SERIES 2004-AR1
     CLASS A-3
     $25,465,000
     100.0%

     CEDEFAST
     CEDE & CO FAST
     P.O. BOX 20
     BOWLING GREEN STATION
     NEW YORK, NEW YORK, 10274
     SERIES 2004-AR1
     CLASS M-1
     $5,007,000
     100.0%

     CEDEFAST
     CEDE & CO FAST
     P.O. BOX 20
     BOWLING GREEN STATION
     NEW YORK, NEW YORK, 10274
     SERIES 2004-AR1
     CLASS M-2
     $3,895,000
     100.0%

     CEDEFAST
     CEDE & CO FAST
     P.O. BOX 20
     BOWLING GREEN STATION
     NEW YORK, NEW YORK, 10274
     SERIES 2004-AR1
     CLASS M-3
     $3,116,000
     100.0%

     ITEM 13.  Certain Relationships and Related Transactions.
                       None

     ITEM 14.  Principal Accountant Fees and Services
               NOT APPLICABLE

     PART IV

    ITEM ITEM 15. Exhibits, Financial Statement Schedules.

     (a) List the following documents filed as a part of the report:

         (1) All financial statements:

             Exhibit 31   Section 302 Certification

             Exhibit 99.1 Servicer's Annual Statement of Compliance for
             Year End December 31, 2004

             Exhibit 99.2 Servicer's Annual Independent Accountant's Report
             for Year End December 31,2004

             Monthly Remittance Statement to the Certificate holders dated
             as of October 19, 2004, and filed with the Securities and
             Exchange Commission on Form 8-K on November 01, 2004.

             Monthly Remittance Statement to the Certificate holders dated
             as of November 19, 2004, and filed with the Securities and
             Exchange Commission on Form 8-K on November 30, 2004.

             Monthly Remittance Statement to the Certificate holders dated
             as of December 20, 2004, and filed with the Securities and
             Exchange Commission on Form 8-K on December 22, 2004.

         (2) Not Applicable

         (3) Not Applicable

     (b) Not Applicable

     (c) Not Applicable


                                     SIGNATURE

          Pursuant to the requirements of Section 13 or 15(d) of the
          Securities Exchange Act of 1934, the Registrant has duly caused
          this report to be signed on its behalf by the undersigned,
          thereunto duly authorized.


                                 By: Greenwich Capital Acceptance, Inc.,
                               as Depositor on behalf of the Registrant


                                      By: /s/: Robert McGinnis
                                               Robert McGinnis
                                                     President


     Date: March 30, 2005


     EXHIBIT INDEX

     Exhibit Document

      31   Section 302 Certification

      99.1 Servicer's Annual Statement of Compliance for Year End
      December 31, 2004

      99.2 Servicer's Annual Independent Accountant's Report for
      Year End December 31, 2004