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


                                    FORM 10-K

[X]     Annual  report  pursuant  to  Section  13 or  15(d)  of the Securities
        Exchange Act of 1934 for the fiscal year ended December 31, 2003

[ ]     Transition report pursuant to Section 13 or 15(d) of the
        Securities Exchange Act of 1934 for the transition period from   to

                                           Commission File Number 333-92140-27

                    STRUCTURED ASSET SECURITIES CORPORATION
             (Exact name of registrant as specified in its charter)

         Delaware                                             74-2440850
(State or other jurisdiction of                           I.R.S. Employer
incorporation or organization)                            Identification No.)

745 Seventh Avenue, 7th Floor
New York, NY                                              10019
(Address of principal executive offices)                 (Zip Code)

Registrant's telephone number, including area code : (212) 526-7000

                     Structured Asset Securities Corporation
               Mortgage Pass-Through Certificates Series 2003-9A
            (Title of each class of securities covered by this Form)

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 registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this 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 Exchange Act Rule 12b-2). Yes  No [X]

                   Documents incorporated by reference: None




<PAGE>

Structured Asset Securities Corporation
Mortgage Pass-Through Certificates Series 2003-9A
--------------------------------------------------------

PART I

Item 1.  Business

         Not Applicable.

Item 2.  Properties

         Not Applicable.

Item 3.  Legal Proceedings

     The Registrant is not aware of any material legal  proceeding  with respect
to, the Company,  the Master Servicer,  the Servicers or the Trustee, as related
to the Trust.

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

     No matter  was  submitted  to a vote or consent of holders of each Class of
Offered Certificates during the fiscal year covered by this report.

PART II

Item 5.  Market for Registrant's Common Equity and Related Stockholder Matters

     The Trust does not issue stock. There is currently no established secondary
market for the  Certificates.  As of December 31, 2003, the number of holders of
each Class of Offered Certificates was 21.

Item 6.  Selected Financial Data

         Not Applicable.

Item 7.  Management's Discussion and Analysis of Financial condition and
         Results of Operations

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

     There was no change of accountants or disagreement  with accountants on any
matter of accounting principles or practices or financial disclosure.

Item 9A. Controls and Procedures.

         Not Applicable.

                                      -2-
<PAGE>

PART III

Item 10. Directors and Executive Officers of the Registrant

         Not Applicable.

Item 11. Executive Compensation

         Not Applicable.

Item 12. Security Ownership of Certain Beneficial Owners and Management

         Not Applicable.

Item 13. Certain Relationships and Related Transactions

         No reportable transactions have occurred.

Item 14. Principal Accounting Fees and Services

         Not Applicable.

PART IV

tem 15. Exhibits, Financial Statement Schedules, and Reports on Form 8-K

(a) The following documents are filed as part of this report:

    (1) Financial Statements:

         Not Applicable.

    (2)  Financial Statement Schedules:

         Not Applicable.

    (3)  Exhibits:

     Annual  Independent  Accountants'  Servicing  Report  concerning  servicing
activities, filed as Exhibit 99.1 hereto.

     Report of  Management as to Compliance  with Minimum  Servicing  Standards,
filed as Exhibit 99.2 herto.

     Annual Statement of Compliance under the Trust Agreement, filed as Exhibit
99.3 hereto.

(b) Reports on Form 8-K: The following  Current Reports on Form 8-K with respect
    to the Trust were filed by the Registrant for the last quarter of 2003.

    Current Reports on Form 8-K dated  October 27, 2003,  November  25,  2003,
    and December 26, 2003 were filed for the  purpose of filing the  Monthly
    Statement sent to the Holders of the Offered  Certificates  for payments
    made on the same date. The items reported in such Current Report were
    Item 5 and Item 7.

(c)   Exhibits to this report are listed in Item (15)(a)(3) above.

d) Not Applicable.
                                      -3-

<PAGE>


Structured Asset Securities Corporation
Mortgage Pass-Through Certificates Series 2003-9A
-----------------------------------------------------------------------------

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.


Date:  March 30, 2004            By:  Aurora Loan Services Inc.,
                                        as Master Servicer

                                        /s/ E. Todd Whittemore
                                        --------------------------------------
                                  Name: E. Todd Whittemore
                                 Title: Executive Vice President



                                      -4-
<PAGE>




                                  Certification
                     Structured Asset Securities Corporation
                Mortgage Pass-Through Certificates Series 2003-9A


     I, E. Todd  Whittemore,  Executive  Vice  President of Aurora Loan Services
Inc., certify that:

     1. I have reviewed this annual report on Form 10-K, and all reports on Form
8-K  containing  distribution  or servicing  reports filed in respect of periods
included  in the  year  covered  by this  annual  report,  of  Structured  Asset
Securities Corporation, Mortgage Pass-Through Certificates Series 2003-9A;

     2. Based on my knowledge,  the  information  in these  reports,  taken as a
whole, does not contain any untrue statement of a material fact or omit to state
a  material  fact  necessary  to make  the  statements  made,  in  light  of the
circumstances  under which such  statements  were made, not misleading as of the
last day of the period covered by this annual report;

     3.  Based  on my  knowledge,  the  distribution  or  servicing  information
required to be provided  to the  trustee by the  servicer  under the pooling and
servicing, or similar,  agreement, for inclusion in these reports is included in
these reports;

     4. I am responsible for reviewing the activities  performed by the servicer
under the  pooling  and  servicing,  or  similar,  agreement  and based  upon my
knowledge and the annual  compliance  review required under that agreement,  and
except as disclosed in the reports,  the servicer has fulfilled its  obligations
under that agreement; and

     5. The  reports  disclose  all  significant  deficiencies  relating  to the
servicer's compliance with the minimum servicing standards based upon the report
provided by an  independent  public  accountant,  after  conducting  a review in
compliance with the Uniform Single  Attestation  Program for Mortgage Bankers or
similar  procedure,  as set forth in the  pooling  and  servicing,  or  similar,
agreement, that is included in these reports.

     In giving the certifications above, I have reasonably relied on information
provided to me by the following  unaffiliated  parties:  JPMorgan Chase Bank, as
Trustee;  and Colonial Savings F.A., as Servicer.

Date: March 30, 2004

  By: /s/ E. Todd Whittemore
      ------------------------
     E. Todd Whittemore
     Executive Vice President
     Aurora Loan Services Inc.


                                      -5-
<PAGE>

SUPPLEMENTAL  INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT TO SECTION
15(D) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED SECURITIES PURSUANT TO
SECTION 12 OF THE ACT.

The  registrant  has not sent an annual report or proxy material to its security
holders.  The registrant  will not be sending an annual report or proxy material
to its security holders subsequent to the filing of this form.

                                      -6-
<PAGE>


                                 EXHIBIT INDEX

Exhibit Description


99.1    Annual Independent Accountants' Servicing Report

        Aurora Loan Services Inc., as Servicer
        Colonial Savings, F.A., as Servicer

99.2    Report of Management as to Compliance with Minimum Servicing Standards

        Aurora Loan Services Inc., as Servicer
        Colonial Savings, F.A., as Servicer

99.3    Annual Statement as to Compliance

        Aurora Loan Services Inc., as Master Servicer


                                      -7-
<PAGE>


                                  EXHIBIT 99.1
                Annual Independent Accountants' Servicing Report
                                 --------------


Ernst & Young LLP
Suite 3300
370 17th Street
Denver, Colorado  80202-5663
Telephone:  (720) 931-4000
Facsimile:  (720) 931-4444
www.ey.com


                       Report on Management's Assertion on
          Compliance with Minimum Servicing Standards Set Forth in the
            Uniform Single Attestation Program for Mortgage Bankers

                       Report of Independent Accountants

Board of Directors
Aurora Loan Services Inc.

We have examined  management's  assertion,  included in the accompanying  report
titled  Report of  Management,  that Aurora Loan  Services  Inc.  (the  Company)
complied with the servicing  standards  identified in Exhibit A to the Report of
Management (the  "specified  minimum  servicing  standards") as set forth in the
Mortgage Bankers Association of America's Uniform Single Attestation Program for
Mortgage  Bankers (USAP) during the year ended November 30, 2003.  Management is
responsible for the Company's  compliance with those specified minimum servicing
standards. Our responsibility is to express an opinion on management's assertion
about the Company's compliance based on our examination.

Our  examination  was  made in  accordance  with  standards  established  by the
American  Institute of Certified Public Accountants and,  accordingly,  included
examining,  on a test basis,  evidence about the Company's  compliance  with the
specified minimum servicing standards and performing such other procedures as we
considered  necessary  in the  circumstances.  We believe  that our  examination
provides a reasonable basis for our opinion.  Our examination does not provide a
legal  determination  on the Company's  compliance  with the  specified  minimum
servicing standards.

In our  opinion,  management's  assertion,  that the Company  complied  with the
aforementioned  specified  minimum  servicing  standards  during  the year ended
November 30, 2003, is fairly stated, in all material respects.


By:  /s/ Ernst & Young LLP
---------------------------

February 2, 2004


                                      -8-
<page>

PricewaterhouseCoopers, LLP
301 Commerce Street
Suite 1900
Fort Worth, Texas  76102
Telephone:  (817) 810-9998



                       REPORT OF INDEPENDENT ACCOUNTANTS


To the Board of Directors and Shareholder
of Colonial Savings, F.A.


     We have  examined  management's  assertion  about  Colonial  Savings,  F.A.
("Colonial")  compliance with the minimum servicing standards  identified in the
Mortgage Bankers Association of America's Uniform Single Attestation Program for
Mortgage  Bankers  ("USAP")  as of and for the  year  ended  December  31,  2003
included in the accompanying management assertion (see Exhibit 1). Management is
responsible  for  the  Colonial's   compliance  with  those  minimum   servicing
standards. Our responsibility is to express an opinion on management's assertion
about Colonial's compliance based on our examination.

     Our  examination  was  made  in  accordance  with   attestation   standards
established  by the  American  Institute of Certified  Public  Accountants  and,
accordingly,  included examining,  on a test basis, evidence about the Company's
compliance  with the  minimum  servicing  standards  and  performing  other such
procedures as we considered necessary in the circumstances.  We believe that our
examination  provides a reasonable  basis for our opinion.  Our examination does
not provide a legal determination on the Colonial's  compliance with the minimum
servicing standards.

     In our opinion,  management's  assertion  that  Colonial  complied with the
aforementioned minimum servicing standards as of and for the year ended December
31, 20032 is fairly stated, in all material respects.


By:  /s/PricewaterhouseCoopers, LLC
------------------------------------
PricewaterhouseCoopers, LLC


December 3, 2003

                                      -9-
<page>


                                  EXHIBIT 99.2
     Report of Management as to Compliance with Minimum Servicing Standards
                                 --------------


Aurora Loan Services Inc.
Corporate Headquartes
10350 Park Meadows Drive
Littleton, CO  80124

Telephone:  (303) 720-945-3000




                      Management's Assertion on Compliance
                   with Minimum Servicing Standards Set Forth
         in the Uniform Single Attestation Program for Mortgage Bankers

                              Report of Management


We, as members of management of Aurora Loan Services,  Inc. (the  Company),  are
responsible  for  complying  with  the  servicing  standards  identified  in the
attached Exhibit A (the "specified minimum servicing standards") as set forth in
the Mortgage Bankers Association of America's Uniform Single Attestation Program
for Mortgage  Bankers  (USAP).  We are also  responsible  for  establishing  and
maintaining  effective  internal  control over  compliance  with these specified
minimum  servicing  standards.  We have performed an evaluation of the Company's
compliance  with the specified  minimum  servicing  standards as of November 30,
2003 and for the year then  ended.  Based on this  evaluation,  we  assert  that
during the year ended November 30, 2003, the Company  complied,  in all material
respects, with the specified minimum servicing standards.

As of November 30, 2003 and for the year then ended, the Company had in effect a
fidelity bond and an errors and omissions policy in the amount of $70,000,000.


/s/ Bruce Witherell                     /s/ Rick W. Skogg
---------------------------             ----------------------------
Bruce Witherell                         Rick W. Skogg
Managing Director                       President


/s/ Roy W. Browning, III                /s/ Bill Napier
-----------------------------           -----------------------------
Roy W. Browning, III                    Bill Napier
Chief Financial Officer                 Finance Controller


February 2, 2004



                                   Exhibit A

                     Specified Minimum Servicing Standards


I.   Custodial Bank Accounts

1.   Reconciliations shall be prepared on a monthly basis for all custodial bank
     accounts and related bank clearing accounts. These reconciliations shall:

        a.   be mathematically accurate;

        b.   be prepared within forty-five (45) calendar days after the cutoff
             date. The cutoff  date is the date as of which a bank  account  is
             reconciled  every  month. It may, or may not, coincide with a
             prescribed  investor  reporting date but shall be consistent from
             period to period;

        c.   be reviewed and approved by someone  other than the person who
             prepared the reconciliation; and

        d.   document  explanations for reconciling items. These reconciling
             items shall  be  resolved   within  ninety  (90) calendar days  of
             their original  identification.

2.   Funds of the servicing  entity shall be advanced in cases where there is an
     overdraft in an investor's or a mortgagor's account.

3.   Each  custodial   account  shall  be  maintained  at  a  federally  insured
     depository institution in trust for the applicable investor.

4.   Escrow  funds  held in  trust  for a  mortgagor  shall be  returned  to the
     mortgagor within thirty (30) calendar days of payoff of the mortgage loan.

II.  Mortgage Payments

1.   Mortgage  payments  shall be deposited into the custodial bank accounts and
     related bank clearing accounts within two (2) business days of receipt.

2.   Mortgage  payments made in accordance with the  mortgagor's  loan documents
     shall be posted to the applicable mortgagor records within two (2) business
     days of receipt.

3.   Mortgage  payments  shall be allocated to principal,  interest,  insurance,
     taxes or  other  escrow  items in  accordance  with  the  mortgagor's  loan
     documents.

4.   Mortgage  payments  identified  as  loan  payoffs  shall  be  allocated  in
     accordance with the mortgagor's loan documents.

III. Disbursements

1.   Disbursements  made via wire  transfer on behalf of a mortgagor or investor
     shall be made only by authorized personnel.

2.   Disbursements  made on behalf of a mortgagor  or  investor  shall be posted
     within two (2)  business  days to the  mortgagor's  or  investor's  records
     maintained by the servicing entity.

3.   Tax and  insurance  payments  shall be made on or  before  the  penalty  or
     insurance policy  expiration dates, as indicated on tax bills and insurance
     premium notices, respectively, provided that such support has been received
     by the  servicing  entity at least thirty (30) calendar days prior to these
     dates.

4.   Any late payment  penalties paid in conjunction with the payment of any tax
     bill or insurance premium notice shall be paid from the servicing  entity's
     funds and not charged to the mortgagor,  unless the late payment was due to
     the mortgagor's error or omission.

5.   Amounts  remitted to investors per the  servicer's  investor  reports shall
     agree with cancelled  checks,  or other form of payment,  or custodial bank
     statements.

6.   Unissued checks shall be safeguarded so as to prevent unauthorized access.

IV.  Investor Accounting and Reporting

1.   The servicing  entity's investor reports shall agree with, or reconcile to,
     investors'  records  on a monthly  basis as to the total  unpaid  principal
     balance and number of loans serviced by the servicing entity.

V.   Mortgagor Loan Accounting

1.   The servicing entity's mortgage loan records shall agree with, or reconcile
     to, the records of mortgagors with respect to the unpaid principal  balance
     on a monthly basis.

2.   Adjustments on adjustable rate mortgage (ARM) loans shall be computed based
     on the related mortgage note and any ARM rider.

3.   Escrow accounts shall be analyzed,  in accordance with the mortgagor's loan
     documents, on at least an annual basis.

V.   Mortgagor Loan Accounting (continued)

4.   Interest on escrow  accounts  shall be paid, or credited,  to mortgagors in
     accordance with the applicable state laws.

VI.  Delinquencies

1.   Records  documenting  collection  efforts  shall be  maintained  during the
     period a loan is in default  and shall be undated  at least  monthly.  Such
     records shall  describe the entity's  activities  in monitoring  delinquent
     loans  including,  for example,  phone calls,  letters and mortgage payment
     rescheduling  plans in cases  where the  delinquency  is  deemed  temporary
     (i.e., illness or unemployment).

VII. Insurance Policies

1.   A fidelity bond and errors and  omissions  policy shall be in effect on the
     servicing entity  throughout the reporting period in the amount of coverage
     represented to investors in management's assertion.

                                      -10-

<page>

Colonial Savings
Fort Worth, Texas  76102


                  Management's Assertion Concerning Compliance
                      with USAP Minimum Servicing Standards

December 12, 2003


     As of and for the year ended September 30, 2003, Colonial Savings, F.A. has
complied in all material  respects with the minimum  servicing  standards as set
forth  in  the  Mortgage  Bankers   Association  of  America's   Uniform  Single
Attestation Program for Mortgage Bankers (USAP).

     As of and for this same  period,  Colonial  Savings,  F.A.  had in effect a
fidelity bond and errors and omissions policy in the amount of $8,500,000.

/s/ Jim E. DuBose
---------------------------------
Jim E. DuBose
President, Chief Executive Officer


/s/ Donna Dempsey
---------------------------------
Donna Dempsey
Executive Vice President, Chief Financial Officer

                                      -11-


 <page>

                                  EXHIBIT 99.3
                         Annual Statement as to Compliance
                                  -----------


Aurora Loan Services Inc.
a Lehman Brothers Company
Master Servicing
3131 South Vaughn Way #500
Aurora, CO 80014
Telephone:  (303) 632-3000
            (800) 880-0126
Facsimile:  (303) 632-3001

Via UPS

February 26, 2004

Nadezhka Thomas
JPMorgan Chase Bank
4 New York Plaza, 6th floor
New York, NY 10004

RE:      SASCO Series 2002-21A, 2002-25A, 2002-27A, 2003-2A, 2003-BC1, 2003-BC2,
         2003-9A, 2003-AM1, 2003-24A, 2003-BC3, 2003-31A, 2003-37A
         Annual Officer's Certificate as to Compliance

Dear Ms. Thomas:

     The  undersigned  Officer  certifies the following for the period ending on
December 31, 2003:

     1. I have reviewed the  activities and  performance of the Master  Servicer
during the preceding  calendar year under the terms of the Trust  Agreements and
to the best of this Officer's  knowledge,  the Master Servicer has fulfilled all
of its duties, responsibilities or obligations under the Agreements;

     2. Based on said review and to the best of this  Officer's  knowledge,  the
Master  Servicer  is not in  default of its  obligations  under the terms of the
Trust  Agreements  in any  material  respect,  or, if there is a default  in the
fulfillment of its obligations, a description of each default or failure and the
nature and status thereof has been reported to this Officer;

     3. To the best of this Officer's knowledge,  nothing has arose to lead this
Officer to believe  that its  Servicer  has failed to perform any of its duties,
responsibilities  and  obligations  under its  Servicing  Agreement  during  the
preceding calendar year;

     4. To the best of this Officer's knowledge,  the Servicer is not in default
of its  obligations  under the terms of its Servicing  Agreement in any material
respect,  or, if there is a default in the  fulfillment  of its  obligations,  a
description  of each  default or failure  and the nature and status  thereof has
been reported to this Officer;

     5. The Master  Servicer has  received  from its  Servicer  such  Servicer's
annual  certificate  of compliance  and a copy of such  Servicer's  annual audit
report,  in each case to the  extent  required  under the  applicable  Servicing
Agreement,  or, if any such  certificate  or report has not been received by the
Master  Servicer,  the Master Servicer is using its best  reasonable  efforts to
obtain such certificate or report.

Certified By:

/s/ E. Todd Whittemore
---------------------------
E. Todd Whittemore
Executive Vice President
Master Servicing Division

                                      -12-