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

FORM 8-K

CURRENT REPORT ~~Pursuant~~ PURSUANT toTO ~~Section~~SECTION 13 OR 15 (d) ofOF ~~The~~THE SECURITIES ~~Securities~~EXCHANGE ~~Exchange~~ACT ~~Act~~OF of 1934

Date of ~~Report~~report (Date of earliest event reported) ~~June~~: 1July 20, 2005

MS Structured Asset Corp. (~~Issuer in Respect of SATURNS Trust No. 2003-1) (~~Exact ~~name~~Name of ~~registrant~~Registrant as ~~specified~~Specified in ~~its charter~~Charter)

Delaware (State or other jurisdiction of incorporation) 001-16443 (CommissionFile Number) 13-4026700 (IRS EmployerIdentification No.)

Delaware	333-101155	13-4026700

(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1585 Broadway, New York, New York (Address of principal executive offices) 10036 (Zip Code)

1585 Broadway, Second Floor New York, New York Attention: Madhu Philips	10036

(Address of Principal Executive Offices)	(Zip Code)

Registrant'’s telephone number, including area code : 212-761-2520

Not Applicable (Former ~~name~~Name or ~~former~~Former ~~address~~Address, if ~~changed~~Changed ~~since~~Since ~~last~~Last ~~report.~~Report)

~~Check~~Section ~~the appropriate box below if the Form~~ 8-K ~~filing~~Other is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Events

~~Section~~Item 8.01 - Other Events

~~Item~~On 8July 20, 2005, MS Structured Asset Corporation (“MSSAC”) together with LaSalle Bank, in its capacity as trustee for the SATURNS 2003-1 Trust, approved and executed a Supplemental Trust Agreement No.01 1, attached as Exhibit 4.1. This ~~Other~~Supplemental ~~Events~~Trust Agreement amends the trust agreement for SATURNS 2003-1 to allow the trust to delist its SATURNS Sears Roebuck Acceptance Corp. Series 2003-1 Callable Units (the “Units”) while permitting the unitholders to elect whether to maintain their ownership of the Units or to liquidate their Units. This amendment occurred in response to the termination of reporting obligations by Sears Roebuck Acceptance Corp. under the Securities and Exchange Act of 1934. MSSAC previously submitted an application for withdrawal from listing of the Units pending the approval and execution of this Supplemental Trust Agreement. Notice of MSSAC’s application has not yet been published in the Federal Register.

~~This~~The ~~current~~Notice ~~report~~to onUnitholders ~~Form~~referenced ~~8-K~~in ~~relates~~the toSupplemental ~~the~~Trust ~~semi~~Agreement ~~annual~~No. ~~distribution~~1, ~~reported~~which toprovides the ~~holders~~required notification to unitholders of ~~SATURNS~~their rights under the Trust Agreement and the Supplemental Trust Agreement No. ~~2003-~~1, ~~which~~is ~~was~~attached ~~made~~as onExhibit ~~June~~4.2. A copy 1,of ~~2005~~the press release issued by MSSAC regarding the Supplemental Trust Agreement and Notice to Unitholders is attached as Exhibit 4.3.

~~Section~~Financial 9statements -regarding ~~Financial~~Sears ~~Statements~~Roebuck Acceptance Corp. are no longer publicly available. Other relevant information regarding Sears Roebuck Acceptance Corp. may be available in public filings by Sears Holding Corporation, the parent company of Sears Roebuck Acceptance Corp. Holders of the Units may wish to refer to the Securities and ~~Exhibits~~Exchange Commission’s website for such public filings.

~~Item~~Section 9~~.01~~ Financial Statements and Exhibits.

~~(c)~~Item 9.01 Financial Statements and Exhibits

99Exhibit 4.1 ~~Semi-Annual~~Supplemental ~~distribution report pursuant to the~~ Trust Agreement ~~for~~No. ~~the distribution on June~~ 1~~, 2005.~~

(Exhibit No4.2 ~~Description)~~Notice to Unitholders

Exhibit 4.3

Press Release, dated July 25, 2005

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the ~~registrant~~Registrant has duly caused this report to be signed on its behalf by the undersigned ~~hereunto~~hereto duly authorized.

~~LASALLE~~Date: ~~BANK~~July ~~NATIONAL ASSOCIATION~~25, ~~IN ITS CAPACITY AS TRUSTEE UNDER THE TRUST AGREEMENT ON BEHALF OF MS STRUCTURED ASSET CORP., REGISTRANT~~ 2005

MS STRUCTURED ASSET CORP. (Registrant) By: /s/ ~~Russell~~Madhu ~~Goldenberg~~Philips ~~Russell~~Name: ~~Goldenberg~~Madhu ~~Group~~Philips ~~Senior~~Title: Vice President ~~Date: June 6, 2005~~

~~Structured~~EXHIBIT Asset Trust Unit Repackagings (SATURNS) Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Reporting Package Table of Contents Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Administrator:Andy Streepey 312.904.9387andy.streepey@abnamro.com Analyst:Suzanne Severson 714.259.6226 Suzanne.Severson@abnamro.com Statement Date: 135 S. LaSalle Street, Suite 1625Chicago, IL 60603USA Statements to CertificateholdersCash Reconciliation SummaryBond Interest ReconciliationOther Related Information Other Related Information Rating InformationRealized Loss Detail Page 2Page 3Page 4Page 5 Page 6 Page 7Page 8 Page(s) Information is available for this issue from the following sources Issue Id: Monthly Data FileName: SAT00301 SAT00301_200506_3.ZIP Closing Date: First Payment Date: Rated Final Payment: Date: 29-Jan-032-Jun-03 1-Jun-32 Parties to The Transaction Depositor: MS Structured Asset Corp Underwriter: Morgan Stanley & Co. Incorporated Rating Agency: Moody's Investors Service, Inc./Standard & Poor's 800.246.5761 LaSalle Factor Line LaSalle Web Site www.etrustee.net Page 1 of 8 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Class CUSIP Original Opening Principal Principal Negative Closing Interest Interest Pass-Through Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Per $ 1000 Next Rate(3) WAC:WAMM: Payment Date:Prior Payment:Next Payment:Record Date: 43.500000% 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Structured Asset Trust Unit Repackagings (SATURNS) Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 Face Value (1) Balance Payment Adj. or Loss Amortization Balance Payment (2) Adjustment Rate 324 Grantor Trust Statement Date: ABN AMRO Acct: 720478.1 1000.000000000 0.000000000 0.000000000 1000.000000000 36.249999979 Fixed 0.00 0.00 0.000000000 7.2500000000% 0.000000000 80411A201 UNIT 60,191,725.00 0.00 0.00 60,191,725.00 2,181,950.03 60,191,725.00 Total P&I Payment 0.00 0.00 60,191,725.00 60,191,725.00 2,181,950.03 Total 60,191,725.00 0.00 0.00 2,181,950.03 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Page 2 of 8 Notes: (1) N denotes notional balance not included in total (2) Accrued Interest Plus/Minus Interest Adjustment Minus Deferred Interest equals Interest Payment (3) Estimated. * Denotes Controlling Class Structured Asset Trust Unit Repackagings (SATURNS) Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Statement Date: Cash Reconciliation Summary Current Scheduled Interest Interest Summary Less Deferred Interest Plus Gross Advance Interest Less PPIS Reducing Scheduled Int 2,181,950.03 0.000.00 Less ASER Interest Adv Reduction 0.00 Less Other Adjustment 0.00 Total 2,181,950.03 Unscheduled Interest:Prepayment Penalties 0.00 Yield Maintenance Penalties 0.00 Other Interest Proceeds 0.00 Total 0.00 Less Fees & Expenses Paid By/To Servicer Less Fee Paid To Servicer Less Fee Strips Paid by Servicer Special Servicing Fees Interest Due Serv on Advances Recoup of Prior Advances Misc. Fees & Expenses Total Unscheduled Fees & ExpensesTotal Interest Due Trust Less Fees & Expenses Paid By/To TrustTrustee FeeFee StripsMisc. FeesInterest Reserve Withholding Plus Interest Reserve DepositTotal Total Interest Due Certs Principal Summary Scheduled Principal:Current Scheduled PrincipalAdvanced Scheduled PrincipalScheduled PrincipalUnscheduled Principal:CurtailmentsPrepayments in FullLiquidation ProceedsRepurchase ProceedsOther Principal ProceedsTotal Unscheduled Principal Remittance Principal Remittance P&I Due Trust Remittance P&I Due Certs Pool Balance Summary Beginning PoolScheduled PrincipalUnscheduled PrincipalDeferred InterestLiquidationsRepurchases Ending Pool Balance Count Principal Interest Prior OutstandingPlus Current PeriodLess Recovered Ending Outstanding Servicing Fee Summary Current Servicing FeesPlus Fees Advanced for PPISLess Reduction for PPISPlus Delinquent Servicing Fees Total Servicing Fees PPIS Summary Gross PPISReduced by PPIEReduced by Shortfalls in FeesReduced by Other Amounts PPIS Reducing ScheduledInterest PPIS Reducing Servicing FeePPIS Due Certificate 0.00 0.00 0.000.00 0.00 0.00 2,181,950.03 0.000.000.000.00 0.00 0.000.000.00 0.000.000.000.000.000.000.00 2,181,950.03 2,181,950.03 60,191,725.00 1 0.000.00 0 0.000.00 0 0.00 0 60,191,725.00 1 0.00 0.00 0.00 0.00 0.00 0.00 0.000.000.000.00 0.00 0.000.000.000.000.000.00 0.00 0.00 2,181,950.03 Interest Not Advanced ( Current Period ) 0.00 0.00 Workout FeesLiquidation Fees 0.000.00 Less Non Recovered 0.00 0.000.00 0.00 0.00 Advance Summary (Advance Made by Servicer) Page 3 of 8 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Structured Asset Trust Unit Repackagings (SATURNS) Class Accrued Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Bond Interest Reconciliation Deductions Allocable Deferred & Prior Prepay- Other Additions Interest Credit Support Original Current(4) Accrual Int. Short- falls Due ment Interest Int erest (2) Payment Amount PPIS Int erest Certificate Accretion Interest Loss/Exp Interest Penalties Proceeds (1) Interest Shortfalls Certificate Rate Pass Thru Method Days Outstanding Remaining Statement Date: Distributable Current Period (Shortfall)/ Recovery Int Accrual on Prior Shortfall (3) 1.001.00 0.00 0.00 0.00 0.00 0.00 UNIT 180 2,181,950.03 2,181,950.03 2,181,950.03 0.00 NA NA 30/360 7.250000000% 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2,181,950.03 2,181,950.03 2,181,950.03 0.00 0.00 0.00 0.00 (2) Accrued - Deductions + Additions Interest (3) Includes interest accrued on outstanding Interest Shortfalls and/or Loss Allocations. Where applicable. 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Page 4 of 8 (1) Other Interest Proceeds are additional interest amounts specifically allocated to the bond(s) and used in determining the bonds Distributable Interest. (4) Determined as follows: (A) the ending balance of all the classes less (B) the sum of (i) the ending balance of the class and (ii) the ending balance of all classes which are not subordinate to the class divided by (A). Structured Asset Trust Unit Repackagings (SATURNS) Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Other Related Information Statement Date: Swap Receipents Swap Amount Received Next Swap Rate None 0.00 0.00% Swap Information Page 5 of 8 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Structured Asset Trust Unit Repackagings (SATURNS) Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Other Related Information Statement Date: The underlying security issuer or guarantor, as applicable, is subject to the informational requirements of the Exchange Act. Theunderlying security issuer or guarantor, as applicable, currently files reports, proxy statements and other information with the SEC.Those periodic reports, current reports and other reports and other information can be inspected and copied at the public referencefacilities maintained by the SEC at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed rates. The SEC alsomaintains a website on the internet at http://www.sec.gov at which users can view and download copies of reports, proxy, informationstatements and other information filed electronically. In addition, those reports and other information may also be obtained from theunderlying security issuer by making a request to the underlying security issuer. Page 6 of 8 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Structured Asset Trust Unit Repackagings (SATURNS) Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Rating Information Class CUSIP Fitch Moody's S&P Fitch Moody's S&P Original Ratings Rating Change/Change Date(1) Statement Date: UNIT 80411A201 NR Baa1 A- Ba1 4/4/05 BB+ 4/5/05 Page 7 of 8 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. NR - Designates that the class was not rated by the rating agency. (1) Changed ratings provided on this report are based on information provided by the applicable rating agency via electronic transmission. It shall be understood that this transmission will generally have been provided to LaSalle within 30 days of the payment date listed on this statement. Because ratings may have changed during the 30 day window, or may not be being provided by the rating agency in an electronic format and therefore notbeing updated on this report, LaSalle recommends that investors obtain current rating information directly from the rating agency. Structured Asset Trust Unit Repackagings (SATURNS) Payment Date:Prior Payment:Next Payment:Record Date: 01-Jun-0501-Jun-05 01-Dec-0401-Dec-05 15-May-05 Sears Roebuck Acceptance Corp. Debenture Backed Series 2003-1 ABN AMRO Acct: 720478.1 Realized Loss Detail Period Disclosure Control # Appraisal Date Appraisal Value Beginning Scheduled Balance Gross Proceeds Gross Proceeds as a % of Sched. Balance Aggregate Liquidation Expenses * Net Liquidation Proceeds Net Proceeds as a % of Sched. Balance Realized Loss Statement Date: Current Total Cumulative 27-May-2005 - 07:19 (K384) (c) 2005 LaSalle Bank N.A. Page 8 of 8 * Aggregate liquidation expenses also include outstanding P&I advances and unpaid servicing fees, unpaid trustee fees, etc..INDEX

Exhibit 4.1

Supplemental Trust Agreement No. 1

Exhibit 4.2

Notice to Unitholders

Exhibit 4.3

Press Release, dated July 25, 2005

Filing Compare · MS STRUCTURED SATURNS SERIES 2003-1