8-K 1 mal03001.txt OCTOBER 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D. C. 20549 Form 8-K Current Report Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 27, 2003 MASTR ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2003-1 Trust (Exact name of registrant as specified in its charter) New York (governing law of 333-101254-01 54-2120388 Pooling and Servicing Agreement) (Commission 54-2120389 (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank Minnesota, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: (410) 884-2000 (Former name or former address, if changed since last report) ITEM 5. Other Events On October 27, 2003 a distribution was made to holders of MASTR ALTERNATIVE LOAN TRUST, Mortgage Pass-Through Certificates, Series 2003-1 Trust. ITEM 7. Financial Statements and Exhibits (c) Exhibits furnished in accordance with Item 601(a) of Regulation S-K Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-1 Trust, relating to the October 27, 2003 distribution. Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MASTR ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2003-1 Trust By: Wells Fargo Bank Minnesota, N.A. as Master Servicer By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 10/31/03 INDEX TO EXHIBITS Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-1 Trust, relating to the October 27, 2003 distribution. EX-99.1

MASTR Alternative Loan Trust Mortgage Pass-Through Certificates Record Date: 89/3130/03 Distribution Date: 910/2527/03 MAL Series: 2003-1 Contact: Customer Service - CTSLink Wells Fargo Bank Minnesota, N.A. Securities Administration Services 7485 New Horizon Way Frederick, MD 21703 Telephone: (301) 815-6600 Fax: (301) 815-6660 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution 1-A-1 576434BZ6 SEN 6.25000% ~~111~~106,~~205~~482,~~954~~477.9650 ~~579~~554,~~197~~596.6824 43,~~723~~799,~~477~~895.4658 U-R 576434CA0 SEN 6.25000% 0.00 0.00 0.00 2-A-1 576434CC6 SEN 6.50000% 6763,~~098~~367,~~472~~024.6769 ~~363~~343,~~450~~238.0605 34,~~731~~679,~~447~~093.9907 3-A-1 576434CF9 SEN 5.00000% 2928,~~704~~658,~~694~~544.4968 ~~123~~119,~~769~~410.5660 1591,~~046,149~~937.8057 4-A-1 576434CG7 SEN 5.50000% 1514,~~664~~581,~~706~~382.4801 7166,~~796~~831.5733 1229,~~083,324~~344.4775 5-A-1 576434CK8 SEN 6.00000% 2019,~~101~~278,~~160~~666.2422 ~~100~~96,~~505~~393.8033 ~~822~~2,~~494~~925,979.0246 PO-1 576434CE2 UKN 0.00000% ~~338~~336,~~133~~872.0492 0.00 112,~~260~~755.1210 PO-2 576434CJ1 UKN 0.00000% 28,~~705~~579.7409 0.00 ~~126~~127.6519 A-X-1 576434CD4 IO 6.50000% 0.00 8277,~~142~~495.6358 0.00 A-X-2 576434CH5 IO 5.00000% 0.00 2726,~~094~~092.9391 0.00 A-X-3 576434CL6 IO 6.00000% 0.00 1918,~~399~~468.8338 0.00 B-1 576434CN2 JUN 6.~~11328~~11374% 9,~~089~~077,~~877~~773.6626 46,~~307~~249.4532 12,~~104~~175.40 B-2 576434CP7 JUN 6.~~11328~~11374% 4,~~219~~214,~~875~~256.6127 21,~~497~~470.7274 5,~~619~~652.3429 B-3 576434CQ5 JUN 6.~~11328~~11374% 2,~~596~~593,~~541~~083.5994 13,~~227~~211.8121 3,~~457~~477.6593 B-4 576434CR3 JUN 6.~~11328~~11374% 2,~~272~~269,~~469~~443.4231 11,~~576~~562.8633 3,~~026~~043.1085 B-5 576434CS1 JUN 6.~~11328~~11374% 1,~~136~~135,~~730~~216.2352 5,~~790~~783.9669 1,~~513~~522.7159 B-6 576434CT9 JUN 6.~~11328~~11374% 1,~~298~~297,~~779~~049.2575 6,~~616~~608.5019 1,~~729~~739.4964 Totals ~~264~~253,~~756~~320,~~101~~370.3816 1,~~472~~407,~~374~~411.3690 1112,~~435~~266,~~731~~744.2042

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses 1-A-1 0.00 ~~106~~102,~~482~~682,~~477~~581.5092 54,~~302~~354,~~675~~491.1482 0.00 U-R 0.00 0.00 0.00 0.00 2-A-1 0.00 6358,~~367~~687,~~024~~931.6962 45,~~094~~022,~~898~~331.0512 0.00 3-A-1 0.00 28,~~658~~066,~~544~~607.6812 1711,~~169,919~~348.3617 0.00 4-A-1 0.00 14,~~581~~352,~~382~~037.0125 1296,~~155,121~~176.0408 0.00 5-A-1 0.00 1916,~~278~~352,~~666~~686.2276 ~~922~~3,~~999~~022,372.8279 0.00 PO-1 0.00 ~~336~~324,~~872~~117.9282 112,~~260~~755.1210 0.00 PO-2 0.00 28,~~579~~451.0990 ~~126~~127.6519 0.00 A-X-1 0.00 0.00 8277,~~142~~495.6358 0.00 A-X-2 0.00 0.00 2726,~~094~~092.9391 0.00 A-X-3 0.00 0.00 1918,~~399~~468.8338 0.00 B-1 0.00 9,~~077~~065,~~773~~597.2686 58,~~411~~424.8572 0.00 B-2 0.00 4,~~214~~208,~~256~~603.2798 27,~~117~~123.0603 0.00 B-3 0.00 2,~~593~~589,~~083~~606.9402 16,~~685~~689.4614 0.00 B-4 0.00 2,~~269~~266,~~443~~399.3146 14,~~602~~606.9618 0.00 B-5 0.00 1,~~135~~133,~~216~~693.5293 7,~~304~~306.6728 0.00 B-6 0.00 1,~~297~~295,~~049~~310.7512 8,~~345~~347.9983 0.00 Totals 0.00 ~~253~~241,~~320~~053,~~370~~625.1676 1213,~~908~~674,~~105~~156.5632 0.00 All distributions required by the Pooling and Servicing Agreement have been calculated by the Certificate Administrator on behalf of the Trustee.

Principal Distribution Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Realized Class Amount Balance Distribution Distribution Accretion Loss (1) 1-A-1 136,225,000.00 ~~111~~106,~~205~~482,~~954~~477.9650 9894,~~057~~979.0759 43,~~625~~704,~~420~~915.3999 0.00 0.00 U-R 100.00 0.00 0.00 0.00 0.00 0.00 2-A-1 86,294,000.00 6763,~~098~~367,~~472~~024.6769 5249,~~813~~646.4281 34,~~678~~629,~~634~~446.5726 0.00 0.00 3-A-1 33,514,000.00 2928,~~704~~658,~~694~~544.4968 ~~113~~110,~~420~~587.4686 ~~932~~481,~~729~~349.3471 0.00 0.00 4-A-1 20,008,000.00 1514,~~664~~581,~~706~~382.4801 5652,~~024~~654.6329 1176,~~027,299~~690.8446 0.00 0.00 5-A-1 30,334,000.00 2019,~~101~~278,~~160~~666.2422 1514,~~230~~742.2741 ~~807~~2,~~263~~911,237.7505 0.00 0.00 PO-1 356,717.00 ~~338~~336,~~133~~872.0492 ~~322~~324.9233 ~~937~~12,430.2077 0.00 0.00 PO-2 31,053.00 28,~~705~~579.7409 ~~126~~127.6519 0.00 0.00 0.00 A-X-1 0.00 0.00 0.00 0.00 0.00 0.00 A-X-2 0.00 0.00 0.00 0.00 0.00 0.00 A-X-3 0.00 0.00 0.00 0.00 0.00 0.00 B-1 9,172,000.00 9,~~089~~077,~~877~~773.6626 12,~~104~~175.40 0.00 0.00 0.00 B-2 4,258,000.00 4,~~219~~214,~~875~~256.6127 5,~~619~~652.3429 0.00 0.00 0.00 B-3 2,620,000.00 2,~~596~~593,~~541~~083.5994 3,~~457~~477.6593 0.00 0.00 0.00 B-4 2,293,000.00 2,~~272~~269,~~469~~443.4231 3,~~026~~043.1085 0.00 0.00 0.00 B-5 1,147,000.00 1,~~136~~135,~~730~~216.2352 1,~~513~~522.7159 0.00 0.00 0.00 B-6 1,310,513.00 1,~~298~~297,~~779~~049.2575 1,~~729~~739.4964 0.00 0.00 0.00 Totals 327,563,383.00 ~~264~~253,~~756~~320,~~101~~370.3816 ~~363~~350,~~446~~674.1118 11,~~072~~916,~~285~~070.0924 0.00 0.00 (1) Amount Does Not Include Excess Special Hazard, Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Principal Distribution Statement (continued) Total Ending Ending Total Principal Certificate Certificate Principal Class Reduction Balance Percentage Distribution 1-A-1 43,~~723~~799,~~477~~895.4658 ~~106~~102,~~482~~682,~~477~~581.5092 0.~~78166620~~75377194 43,~~723~~799,~~477~~895.4658 U-R 0.00 0.00 0.00000000 0.00 2-A-1 34,~~731~~679,~~447~~093.9907 6358,~~367~~687,~~024~~931.6962 0.~~73431553~~68009284 34,~~731~~679,~~447~~093.9907 3-A-1 1591,~~046,149~~937.8057 28,~~658~~066,~~544~~607.6812 0.~~85512158~~83745918 1591,~~046,149~~937.8057 4-A-1 1229,~~083,324~~344.4775 14,~~581~~352,~~382~~037.0125 0.~~72877759~~71731494 1229,~~083,324~~344.4775 5-A-1 ~~822~~2,~~494~~925,979.0246 1916,~~278~~352,~~666~~686.2276 0.~~63554646~~53908772 ~~822~~2,~~494~~925,979.0246 PO-1 112,~~260~~755.1210 ~~336~~324,~~872~~117.9282 0.~~94437024~~90861333 112,~~260~~755.1210 PO-2 ~~126~~127.6519 28,~~579~~451.0990 0.~~92033266~~91623676 ~~126~~127.6519 A-X-1 0.00 0.00 0.00000000 0.00 A-X-2 0.00 0.00 0.00000000 0.00 A-X-3 0.00 0.00 0.00000000 0.00 B-1 12,~~104~~175.40 9,~~077~~065,~~773~~597.2686 0.~~98972670~~98839924 12,~~104~~175.40 B-2 5,~~619~~652.3429 4,~~214~~208,~~256~~603.2798 0.~~98972670~~98839924 5,~~619~~652.3429 B-3 3,~~457~~477.6593 2,~~593~~589,~~083~~606.9402 0.~~98972669~~98839924 3,~~457~~477.6593 B-4 3,~~026~~043.1085 2,~~269~~266,~~443~~399.3146 0.~~98972669~~98839924 3,~~026~~043.1085 B-5 1,~~513~~522.7159 1,~~135~~133,~~216~~693.5293 0.~~98972670~~98839924 1,~~513~~522.7159 B-6 1,~~729~~739.4964 1,~~297~~295,~~049~~310.7512 0.~~98972673~~98839929 1,~~729~~739.4964 Totals 1112,~~435~~266,~~731~~744.2042 ~~253~~241,~~320~~053,~~370~~625.1676 0.~~77334764~~73589918 1112,~~435~~266,~~731~~744.2042

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion 1-A-1 136,225,000.00 ~~816~~781.~~34028233~~66619563 0.~~71981699~~69722584 3327.~~95426970~~19703424 0.00000000 U-R 100.00 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 86,294,000.00 ~~777~~734.~~55663974~~31553399 0.~~61201729~~57532169 4253.~~62908858~~64737131 0.00000000 3-A-1 33,514,000.00 ~~886~~855.~~33688876~~12158143 3.~~38427105~~29975115 2714.~~83103598~~36264576 0.00000000 4-A-1 20,008,000.00 ~~782~~728.~~92215514~~77758946 2.~~80011146~~63166184 518.~~34445422~~83099060 0.00000000 5-A-1 30,334,000.00 ~~662~~635.~~66104833~~54645678 0.~~50208578~~48600284 2695.~~61250577~~97273851 0.00000000 PO-1 356,717.00 ~~947~~944.~~90279129~~37024308 0.~~90525543~~90920814 234.~~62729278~~84770841 0.00000000 PO-2 31,053.00 ~~924~~920.~~41116800~~33265707 4.~~07851093~~09590056 0.00000000 0.00000000 A-X-1 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-X-2 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-X-3 0.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 9,172,000.00 ~~991~~989.~~04640863~~72669647 1.~~31971217~~32745312 0.00000000 0.00000000 B-2 4,258,000.00 ~~991~~989.~~04640911~~72669563 1.~~31971348~~32745186 0.00000000 0.00000000 B-3 2,620,000.00 ~~991~~989.~~04640840~~72669466 1.~~31971374~~32745420 0.00000000 0.00000000 B-4 2,293,000.00 ~~991~~989.~~04641082~~72669429 1.~~31971217~~32745312 0.00000000 0.00000000 B-5 1,147,000.00 ~~991~~989.~~04640802~~72669573 1.~~31971229~~32745423 0.00000000 0.00000000 B-6 1,310,513.00 ~~991~~989.~~04644517~~72673297 1.~~31970457~~32744963 0.00000000 0.00000000

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution 1-A-1 0.00000000 3427.~~67408669~~89426008 ~~781~~753.~~66619563~~77193555 0.~~78166620~~75377194 3427.~~67408669~~89426008 U-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 0.00000000 4354.~~24110587~~22269300 ~~734~~680.~~31553399~~09284099 0.~~73431553~~68009284 4354.~~24110587~~22269300 3-A-1 0.00000000 3117.~~21530704~~66239691 ~~855~~837.~~12158143~~45918482 0.~~85512158~~83745918 3117.~~21530704~~66239691 4-A-1 0.00000000 5411.~~14456567~~46265244 ~~728~~717.~~77758946~~31493653 0.~~72877759~~71731494 5411.~~14456567~~46265244 5-A-1 0.00000000 2796.~~11459155~~45874135 ~~635~~539.~~54645678~~08771543 0.~~63554646~~53908772 2796.~~11459155~~45874135 PO-1 0.00000000 335.~~53254821~~75691655 ~~944~~908.~~37024308~~61332653 0.~~94437024~~90861333 335.~~53254821~~75691655 PO-2 0.00000000 4.~~07851093~~09590056 ~~920~~916.~~33265707~~23675651 0.~~92033266~~91623676 4.~~07851093~~09590056 A-X-1 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-X-2 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-X-3 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1.~~31971217~~32745312 ~~989~~988.~~72669647~~39924335 0.~~98972670~~98839924 1.~~31971217~~32745312 B-2 0.00000000 1.~~31971348~~32745186 ~~989~~988.~~72669563~~39924378 0.~~98972670~~98839924 1.~~31971348~~32745186 B-3 0.00000000 1.~~31971374~~32745420 ~~989~~988.~~72669466~~39924427 0.~~98972669~~98839924 1.~~31971374~~32745420 B-4 0.00000000 1.~~31971217~~32745312 ~~989~~988.~~72669429~~39924117 0.~~98972669~~98839924 1.~~31971217~~32745312 B-5 0.00000000 1.~~31971229~~32745423 ~~989~~988.~~72669573~~39924150 0.~~98972670~~98839924 1.~~31971229~~32745423 B-6 0.00000000 1.~~31970457~~32744963 ~~989~~988.~~72673297~~39929096 0.~~98972673~~98839929 1.~~31970457~~32744963 (3) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class Amount Rate Balance Interest Shortfall Shortfall 1-A-1 136,225,000.00 6.25000% ~~111~~106,~~205~~482,~~954~~477.9650 ~~579~~554,~~197~~596.6824 0.00 0.00 U-R 100.00 6.25000% 0.00 0.00 0.00 0.00 2-A-1 86,294,000.00 6.50000% 6763,~~098~~367,~~472~~024.6769 ~~363~~343,~~450~~238.0605 0.00 0.00 3-A-1 33,514,000.00 5.00000% 2928,~~704~~658,~~694~~544.4968 ~~123~~119,~~769~~410.5660 0.00 0.00 4-A-1 20,008,000.00 5.50000% 1514,~~664~~581,~~706~~382.4801 7166,~~796~~831.5733 0.00 0.00 5-A-1 30,334,000.00 6.00000% 2019,~~101~~278,~~160~~666.2422 ~~100~~96,~~505~~393.8033 0.00 0.00 PO-1 356,717.00 0.00000% ~~338~~336,~~133~~872.0492 0.00 0.00 0.00 PO-2 31,053.00 0.00000% 28,~~705~~579.7409 0.00 0.00 0.00 A-X-1 0.00 6.50000% 1514,~~164~~306,~~792~~877.9702 8277,~~142~~495.6358 0.00 0.00 A-X-2 0.00 5.00000% 6,~~502~~262,~~783~~299.3242 2726,~~094~~092.9391 0.00 0.00 A-X-3 0.00 6.00000% 3,~~879~~693,~~965~~676.9167 1918,~~399~~468.8338 0.00 0.00 B-1 9,172,000.00 6.~~11328~~11374% 9,~~089~~077,~~877~~773.6626 46,~~307~~249.4532 0.00 0.00 B-2 4,258,000.00 6.~~11328~~11374% 4,~~219~~214,~~875~~256.6127 21,~~497~~470.7274 0.00 0.00 B-3 2,620,000.00 6.~~11328~~11374% 2,~~596~~593,~~541~~083.5994 13,~~227~~211.8121 0.00 0.00 B-4 2,293,000.00 6.~~11328~~11374% 2,~~272~~269,~~469~~443.4231 11,~~576~~562.8633 0.00 0.00 B-5 1,147,000.00 6.~~11328~~11374% 1,~~136~~135,~~730~~216.2352 5,~~790~~783.9669 0.00 0.00 B-6 1,310,513.00 6.~~11328~~11374% 1,~~298~~297,~~779~~049.2575 6,~~616~~608.5019 0.00 0.00 Totals 327,563,383.00 1,~~472~~407,~~374~~411.3690 0.00 0.00

Interest Distribution Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (4) Distribution Shortfall Balance 1-A-1 0.00 0.00 ~~579~~554,~~197~~596.6824 0.00 ~~106~~102,~~482~~682,~~477~~581.5092 U-R 0.00 0.00 0.00 0.00 0.00 2-A-1 0.00 0.00 ~~363~~343,~~450~~238.0605 0.00 6358,~~367~~687,~~024~~931.6962 3-A-1 0.00 0.00 ~~123~~119,~~769~~410.5660 0.00 28,~~658~~066,~~544~~607.6812 4-A-1 0.00 0.00 7166,~~796~~831.5733 0.00 14,~~581~~352,~~382~~037.0125 5-A-1 0.00 0.00 ~~100~~96,~~505~~393.8033 0.00 1916,~~278~~352,~~666~~686.2276 PO-1 0.00 0.00 0.00 0.00 ~~336~~324,~~872~~117.9282 PO-2 0.00 0.00 0.00 0.00 28,~~579~~451.0990 A-X-1 0.00 0.00 8277,~~142~~495.6358 0.00 1413,~~306~~573,~~877~~432.0217 A-X-2 0.00 0.00 2726,~~094~~092.9391 0.00 6,~~262~~116,~~299~~812.4255 A-X-3 0.00 0.00 1918,~~399~~468.8338 0.00 3,~~693~~167,~~676~~590.6797 B-1 0.00 0.00 46,~~307~~249.4532 0.00 9,~~077~~065,~~773~~597.2686 B-2 0.00 0.00 21,~~497~~470.7274 0.00 4,~~214~~208,~~256~~603.2798 B-3 0.00 0.00 13,~~227~~211.8121 0.00 2,~~593~~589,~~083~~606.9402 B-4 0.00 0.00 11,~~576~~562.8633 0.00 2,~~269~~266,~~443~~399.3146 B-5 0.00 0.00 5,~~790~~783.9669 0.00 1,~~135~~133,~~216~~693.5293 B-6 0.00 0.00 6,~~616~~608.5019 0.00 1,~~297~~295,~~049~~310.7512 Totals 0.00 0.00 1,~~472~~407,~~374~~411.3690 0.00 (4) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~Bankruptcy, or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

Interest Distribution Factors Statement Beginning Payment of Original Current Certificate/ Current Unpaid Current Face Certificate Notional Accrued Interest Interest Class (5) Amount Rate Balance Interest Shortfall Shortfall 1-A-1 136,225,000.00 6.25000% ~~816~~781.~~34028233~~66619563 4.~~25177229~~07117812 0.00000000 0.00000000 U-R 100.00 6.25000% 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 86,294,000.00 6.50000% ~~777~~734.~~55663974~~31553399 43.~~21176513~~97754247 0.00000000 0.00000000 3-A-1 33,514,000.00 5.00000% ~~886~~855.~~33688876~~12158143 3.~~69307036~~56300650 0.00000000 0.00000000 4-A-1 20,008,000.00 5.50000% ~~782~~728.~~92215514~~77758946 3.~~58839314~~34023041 0.00000000 0.00000000 5-A-1 30,334,000.00 6.00000% ~~662~~635.~~66104833~~54645678 3.~~31330520~~17773225 0.00000000 0.00000000 PO-1 356,717.00 0.00000% ~~947~~944.~~90279129~~37024308 0.00000000 0.00000000 0.00000000 PO-2 31,053.00 0.00000% ~~924~~920.~~41116800~~33265707 0.00000000 0.00000000 0.00000000 A-X-1 0.00 6.50000% ~~786~~742.~~73127912~~22362814 4.~~26146117~~02037779 0.00000000 0.00000000 A-X-2 0.00 5.00000% ~~859~~827.~~08380541~~31343666 3.~~57951579~~44713876 0.00000000 0.00000000 A-X-3 0.00 6.00000% ~~655~~624.~~61216719~~13418640 3.~~27806091~~12067037 0.00000000 0.00000000 B-1 9,172,000.00 6.~~11328~~11374% ~~991~~989.~~04640863~~72669647 5.~~04878434~~04244658 0.00000000 0.00000000 B-2 4,258,000.00 6.~~11328~~11374% ~~991~~989.~~04640911~~72669563 5.~~04878347~~04244716 0.00000000 0.00000000 B-3 2,620,000.00 6.~~11328~~11374% ~~991~~989.~~04640840~~72669466 5.~~04878244~~04244656 0.00000000 0.00000000 B-4 2,293,000.00 6.~~11328~~11374% ~~991~~989.~~04641082~~72669429 5.~~04878325~~04244658 0.00000000 0.00000000 B-5 1,147,000.00 6.~~11328~~11374% ~~991~~989.~~04640802~~72669573 5.~~04878814~~04244987 0.00000000 0.00000000 B-6 1,310,513.00 6.~~11328~~11374% ~~991~~989.~~04644517~~72673297 5.~~04878624~~04244521 0.00000000 0.00000000 (5) Per $1 denomination.

Interest Distribution Factors Statement (continued) Remaining Ending Non-Supported Total Unpaid Certificate/ Interest Realized Interest Interest Notional Class Shortfall Losses (6) Distribution Shortfall Balance 1-A-1 0.00000000 0.00000000 4.~~25177229~~07117812 0.00000000 ~~781~~753.~~66619563~~77193555 U-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2-A-1 0.00000000 0.00000000 43.~~21176513~~97754247 0.00000000 ~~734~~680.~~31553399~~09284099 3-A-1 0.00000000 0.00000000 3.~~69307036~~56300650 0.00000000 ~~855~~837.~~12158143~~45918482 4-A-1 0.00000000 0.00000000 3.~~58839314~~34023041 0.00000000 ~~728~~717.~~77758946~~31493653 5-A-1 0.00000000 0.00000000 3.~~31330520~~17773225 0.00000000 ~~635~~539.~~54645678~~08771543 PO-1 0.00000000 0.00000000 0.00000000 0.00000000 ~~944~~908.~~37024308~~61332653 PO-2 0.00000000 0.00000000 0.00000000 0.00000000 ~~920~~916.~~33265707~~23675651 A-X-1 0.00000000 0.00000000 4.~~26146117~~02037779 0.00000000 ~~742~~704.~~22362814~~17338860 A-X-2 0.00000000 0.00000000 3.~~57951579~~44713876 0.00000000 ~~827~~808.~~31343666~~09314163 A-X-3 0.00000000 0.00000000 3.~~27806091~~12067037 0.00000000 ~~624~~535.~~13418640~~23954302 B-1 0.00000000 0.00000000 5.~~04878434~~04244658 0.00000000 ~~989~~988.~~72669647~~39924335 B-2 0.00000000 0.00000000 5.~~04878347~~04244716 0.00000000 ~~989~~988.~~72669563~~39924378 B-3 0.00000000 0.00000000 5.~~04878244~~04244656 0.00000000 ~~989~~988.~~72669466~~39924427 B-4 0.00000000 0.00000000 5.~~04878325~~04244658 0.00000000 ~~989~~988.~~72669429~~39924117 B-5 0.00000000 0.00000000 5.~~04878814~~04244987 0.00000000 ~~989~~988.~~72669573~~39924150 B-6 0.00000000 0.00000000 5.~~04878624~~04244521 0.00000000 ~~989~~988.~~72673297~~39929096 (6) Amount Does Not Include Excess Special Hazard, ~~Bankrupcy~~Bankruptcy,or Fraud Losses Unless Otherwise Disclosed. Please Refer to the Prospectus Supplement for a Full Description.

CERTIFICATEHOLDER ACCOUNT STATEMENT CERTIFICATE ACCOUNT Beginning Balance 0.00 Deposits Payments of Interest and Principal 1213,~~943~~709,~~389~~040.8810 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 7065,~~069~~770.3618 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 13,~~013~~774,~~459~~810.2428 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee ~~105~~100,~~353~~653.6896 Payment of Interest and Principal 1213,~~908~~674,~~105~~156.5632 Total Withdrawals (Pool Distribution Amount) 13,~~013~~774,~~459~~810.2428 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee 5552,~~157~~775.4607 Lender PMI 5047,~~196~~878.2289 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee ~~105~~100,~~353~~653.6896

LOAN STATUS STRATIFICATION/CREDIT ENHANCEMENT STATEMENT DELINQUENCY STATUS DELINQUENT BANKRUPTCY FORECLOSURE REO Total No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 4234 0 0 0 4234 64,~~182~~940,~~363~~674.2486 0.00 0.00 0.00 64,~~182~~940,~~363~~674.2486 60 Days 913 0 0 0 913 12,~~809~~332,~~301~~391.5489 0.00 0.00 0.00 12,~~809~~332,~~301~~391.5489 90 Days 42 0 1 0 53 ~~501~~483,~~767~~432.2434 0.00 ~~145~~91,~~352~~433.0409 0.00 ~~647~~574,~~119~~865.2843 120 Days 10 0 3 0 43 ~~119,526~~0.2100 0.00 1444,~~047,102~~938.6116 0.00 1444,~~166,628~~938.8216 150 Days 0 0 12 0 12 0.00 0.00 49694,~~377~~863.69 0.00 49694,~~377~~863.69 180+ Days 0 0 3 0 3 0.00 0.00 ~~384~~299,~~978~~609.4160 0.00 ~~384~~299,~~978~~609.4160 Totals 5649 0 89 0 6458 87,~~612~~756,~~958~~499.2309 0.00 1,~~626~~530,~~810~~844.7554 0.00 109,~~239~~287,~~768~~343.9863 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 21.~~143951~~797040% 0.000000% 0.000000% 0.000000% 21.~~143951~~797040% 2.~~437608~~047065% 0.000000% 0.000000% 0.000000% 2.~~437608~~047065% 60 Days 0.~~459418~~687104% 0.000000% 0.000000% 0.000000% 0.~~459418~~687104% 0.~~713379~~966378% 0.000000% 0.000000% 0.000000% 0.~~713379~~966378% 90 Days 0.~~204186~~105708% 0.000000% 0.~~051046~~052854% 0.000000% 0.~~255232~~158562% 0.~~197839~~200300% 0.000000% 0.~~057310~~037883% 0.000000% 0.~~255149~~238183% 120 Days 0.~~051046~~000000% 0.000000% 0.~~153139~~158562% 0.000000% 0.~~204186~~158562% 0.~~047127~~000000% 0.000000% 0.~~412856~~184351% 0.000000% 0.~~459983~~184351% 150 Days 0.000000% 0.000000% 0.~~051046~~105708% 0.000000% 0.~~051046~~105708% 0.000000% 0.000000% 0.~~019469~~287902% 0.000000% 0.~~019469~~287902% 180+ Days 0.000000% 0.000000% 0.~~153139~~158562% 0.000000% 0.~~153139~~158562% 0.000000% 0.000000% 0.~~151791~~124137% 0.000000% 0.~~151791~~124137% Totals 2.~~858601~~589852% 0.000000% 0.~~408372~~475687% 0.000000% 3.~~266973~~065539% 3.~~395953~~213743% 0.000000% 0.~~641426~~634273% 0.000000% 43.~~037379~~848016%

Delinquency Status By Groups

DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 1 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 1914 0 0 0 1914 1981,~~909,536~~383.9390 0.00 0.00 0.00 1981,~~909,536~~383.9390 60 Days 12 0 0 0 12 ~~273~~263,~~648~~848.8183 0.00 0.00 0.00 ~~273~~263,~~648~~848.8183 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 10 0 10 0.00 0.00 ~~49,377~~0.6900 0.00 ~~49,377~~0.6900 180 Days 0 0 1 0 1 0.00 0.00 ~~134~~49,~~746~~377.5069 0.00 ~~134~~49,~~746~~377.5069 Totals 2016 0 21 0 2217 21,~~183~~245,~~185~~232.7473 0.00 ~~184~~49,~~124~~377.1969 0.00 21,~~367~~294,~~309~~610.9342 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 1.~~818182~~377953% 0.000000% 0.000000% 0.000000% 1.~~818182~~377953% 10.~~647606~~875550% 0.000000% 0.000000% 0.000000% 10.~~647606~~875550% 60 Days 0.~~095694~~196850% 0.000000% 0.000000% 0.000000% 0.~~095694~~196850% 0.~~236112~~235395% 0.000000% 0.000000% 0.000000% 0.~~236112~~235395% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.~~095694~~000000% 0.000000% 0.~~095694~~000000% 0.000000% 0.000000% 0.~~042605~~000000% 0.000000% 0.~~042605~~000000% 180 Days 0.000000% 0.000000% 0.~~095694~~098425% 0.000000% 0.~~095694~~098425% 0.000000% 0.000000% 0.~~116263~~044053% 0.000000% 0.~~116263~~044053% Totals 1.~~913876~~574803% 0.000000% 0.~~191388~~098425% 0.000000% 21.~~105263~~673228% 1.~~883718~~110944% 0.000000% 0.~~158868~~044053% 0.000000% 21.~~042586~~154997% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 2 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 1711 0 0 0 1711 31,~~006~~706,~~878~~117.0287 0.00 0.00 0.00 31,~~006~~706,~~878~~117.0287 60 Days 810 0 0 0 810 1,~~535~~884,~~652~~200.7380 0.00 0.00 0.00 1,~~535~~884,~~652~~200.7380 90 Days 32 0 1 0 43 ~~474~~483,~~223~~432.8334 0.00 ~~145~~91,~~352~~433.0409 0.00 ~~619~~574,~~575~~865.8743 120 Days 10 0 13 0 23 ~~119,526~~0.2100 0.00 81444,~~576~~938.7816 0.00 ~~201~~444,~~102~~938.9916 150 Days 0 0 01 0 01 0.00 0.00 081,576.0078 0.00 081,576.0078 180 Days 0 0 2 0 2 0.00 0.00 250,231.91 0.00 250,231.91 Totals 2923 0 47 0 3330 54,~~136~~073,~~280~~751.7901 0.00 ~~477~~868,~~160~~179.7394 0.00 54,~~613~~941,~~441~~930.5295 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 32.~~679654~~517162% 0.000000% 0.000000% 0.000000% 32.~~679654~~517162% 42.~~330406~~635420% 0.000000% 0.000000% 0.000000% 42.~~330406~~635420% 60 Days 12.~~731602~~288330% 0.000000% 0.000000% 0.000000% 12.~~731602~~288330% 2.~~211596~~910503% 0.000000% 0.000000% 0.000000% 2.~~211596~~910503% 90 Days 0.~~649351~~457666% 0.000000% 0.~~216450~~228833% 0.000000% 0.~~865801~~686499% 0.~~682961~~746752% 0.000000% 0.~~209331~~141236% 0.000000% 0.~~892293~~887988% 120 Days 0.~~216450~~000000% 0.000000% 0.~~216450~~686499% 0.000000% 0.~~432900~~686499% 0.~~172138~~000000% 0.000000% 0.~~117484~~687291% 0.000000% 0.~~289622~~687291% 150 Days 0.000000% 0.000000% 0.~~000000~~228833% 0.000000% 0.~~000000~~228833% 0.000000% 0.000000% 0.~~000000~~126011% 0.000000% 0.~~000000~~126011% 180 Days 0.000000% 0.000000% 0.~~432900~~457666% 0.000000% 0.~~432900~~457666% 0.000000% 0.000000% 0.~~360376~~386530% 0.000000% 0.~~360376~~386530% Totals 65.~~277056~~263158% 0.000000% 01.~~865801~~601831% 0.000000% 76.~~142857~~864989% 76.~~397101~~292675% 0.000000% 01.~~687191~~341067% 0.000000% 87.~~084292~~633743% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 3 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 24 0 0 0 24 ~~143~~305,~~597~~168.0998 0.00 0.00 0.00 ~~143~~305,~~597~~168.0998 60 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 90 Days 10 0 0 0 10 ~~27,543~~0.4100 0.00 0.00 0.00 ~~27,543~~0.4100 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 34 0 0 0 34 ~~171~~305,~~140~~168.5098 0.00 0.00 0.00 ~~171~~305,~~140~~168.5098 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 01.~~653595~~328904% 0.000000% 0.000000% 0.000000% 01.~~653595~~328904% 01.~~463427~~004304% 0.000000% 0.000000% 0.000000% 01.~~463427~~004304% 60 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 90 Days 0.~~326797~~000000% 0.000000% 0.000000% 0.000000% 0.~~326797~~000000% 0.~~088890~~000000% 0.000000% 0.000000% 0.000000% 0.~~088890~~000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 01.~~980392~~328904% 0.000000% 0.000000% 0.000000% 01.~~980392~~328904% 01.~~552317~~004304% 0.000000% 0.000000% 0.000000% 01.~~552317~~004304% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 4 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 34 0 0 0 34 ~~754~~1,~~036~~575,221.9013 0.00 0.00 0.00 ~~754~~1,~~036~~575,221.9013 60 Days 01 0 0 0 01 0184,342.0026 0.00 0.00 0.00 0184,342.0026 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 150 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 35 0 0 0 35 ~~754~~1,~~036~~759,563.9039 0.00 0.00 0.00 ~~754~~1,~~036~~759,563.9039 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 34.~~191489~~301075% 0.000000% 0.000000% 0.000000% 34.~~191489~~301075% 410.~~724208~~014068% 0.000000% 0.000000% 0.000000% 410.~~724208~~014068% 60 Days 01.~~000000~~075269% 0.000000% 0.000000% 0.000000% 01.~~000000~~075269% 01.~~000000~~171909% 0.000000% 0.000000% 0.000000% 01.~~000000~~171909% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 150 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 35.~~191489~~376344% 0.000000% 0.000000% 0.000000% 35.~~191489~~376344% 411.~~724208~~185977% 0.000000% 0.000000% 0.000000% 411.~~724208~~185977% DELINQUENT BANKRUPTCY FORECLOSURE REO Total Group 5 No of Loans No of Loans No of Loans No of Loans No of Loans Principal Balance Principal Balance Principal Balance Principal Balance Principal Balance 0-29 Days 0 0 0 0 0.00 0.00 0.00 0.00 30 Days 1 0 0 0 1 ~~368~~372,~~314~~782.3098 0.00 0.00 0.00 ~~368~~372,~~314~~782.3098 60 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 90 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 120 Days 0 0 20 0 20 0.00 0.00 ~~965,525~~0.8300 0.00 ~~965,525~~0.8300 150 Days 0 0 01 0 01 0.00 0.00 0613,286.0091 0.00 0613,286.0091 180 Days 0 0 0 0 0 0.00 0.00 0.00 0.00 0.00 Totals 1 0 21 0 32 ~~368~~372,~~314~~782.3098 0.00 ~~965~~613,~~525~~286.8391 0.00 1986,~~333,840~~069.1389 0-29 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 30 Days 12.~~923077~~222222% 0.000000% 0.000000% 0.000000% 12.~~923077~~222222% 12.~~725689~~024658% 0.000000% 0.000000% 0.000000% 12.~~725689~~024658% 60 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 90 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 120 Days 0.000000% 0.000000% 30.~~846154~~000000% 0.000000% 30.~~846154~~000000% 0.000000% 0.000000% 40.~~523846~~000000% 0.000000% 40.~~523846~~000000% 150 Days 0.000000% 0.000000% 02.~~000000~~222222% 0.000000% 02.~~000000~~222222% 0.000000% 0.000000% 03.~~000000~~330882% 0.000000% 03.~~000000~~330882% 180 Days 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% 0.000000% Totals 12.~~923077~~222222% 0.000000% 32.~~846154~~222222% 0.000000% 54.~~769231~~444444% 12.~~725689~~024658% 0.000000% 43.~~523846~~330882% 0.000000% 65.~~249535~~355540%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 7065,~~069~~770.3618

CREDIT ENHANCEMENT Original $ Original % Current $ Current % Bankruptcy 150,000.00 0.04579266% 150,000.00 0.~~05921356~~06222682% Fraud 9,826,902.00 3.00000016% 9,826,902.00 34.~~87923875~~07664557% Special Hazard 3,275,634.00 1.00000005% 3,275,634.00 1.~~29307958~~35888186% Limit of Subordinate's Exposure to Certain Types of Losses

COLLATERAL STATEMENT Collateral Description Fixed 30 Year Weighted Average Gross Coupon 7.~~151010~~143836% Weighted Average Pass-Through Rate 6.~~673497~~667030% Weighted Average Maturity(Stepdown Calculation ) ~~317~~316 Beginning Scheduled Collateral Loan Count 21,~~029~~959 Number Of Loans Paid In Full 7067 Ending Scheduled Collateral Loan Count 1,~~959~~892 Beginning Scheduled Collateral Balance ~~264~~253,~~756~~320,~~102~~371.5432 Ending Scheduled Collateral Balance ~~253~~241,~~320~~053,~~371~~626.3290 Ending Actual Collateral Balance at 3130-~~Aug~~Sep-2003 ~~253~~241,~~624~~354,~~198~~086.6983 Monthly P &I Constant 1,~~941~~858,~~174~~740.0425 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 1213,~~774~~528,~~250~~776.8085 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~253~~241,~~320~~053,~~371~~626.3290 Scheduled Principal ~~363~~350,~~446~~674.1318 Unscheduled Principal 11,~~072~~916,~~285~~070.0924

Miscellaneous Reporting Group 1 Senior Percentage 92.~~366370~~061102% Group 2 Senior Percentage 9291.~~000784~~575528% Group 3 Senior Percentage 9392.~~053825~~843930% Group 4 Senior Percentage 9291.~~204458~~700820% Group 5 Senior Percentage 90.~~754172~~404168% Group 1 Senior Prepayment Percentage 100.000000% Group 2 Senior Prepayment Percentage 100.000000% Group 3 Senior Prepayment Percentage 100.000000% Group 4 Senior Prepayment Percentage 100.000000% Group 5 Senior Prepayment Percentage 100.000000% Group 1 Junior Percentage 7.~~633630~~938898% Group 2 Junior Percentage 78.~~999216~~424472% Group 3 Junior Percentage 67.~~946175~~156070% Group 4 Junior Percentage 78.~~795542~~299180% Group 5 Junior Percentage 9.~~245828~~595832%

Group Level Collateral Statement Group Group 1 Group 2 Group 3 Collateral Description Fixed 30 Year Fixed 30 Year Fixed 30 Year Weighted Average Coupon Rate 7.~~113976~~108323 7.~~718953~~706545 5.~~895546~~892832 Weighted Average Net Rate 6.~~863976~~858323 7.~~468954~~456545 5.~~645546~~642832 Weighted Average Maturity ~~349~~348 ~~349~~348 ~~170~~169 Beginning Loan Count 1,~~078~~045 ~~488~~462 ~~312~~306 Loans Paid In Full 3329 2625 65 Ending Loan Count 1,~~045~~016 ~~462~~437 ~~306~~301 Beginning Scheduled Balance ~~120~~115,~~543~~811,~~312~~537.8135 7369,~~123~~386,~~907~~801.4643 3130,~~939~~884,~~631~~931.43 Ending scheduled Balance ~~115~~112,~~811~~003,~~537~~255.3559 6964,~~386~~690,~~801~~581.4362 30,~~884~~284,~~931~~386.4310 Record Date 0809/3130/2003 0809/3130/2003 0809/3130/2003 Principal And Interest Constant ~~820~~789,~~929~~342.8497 ~~527~~499,~~944~~997.7150 ~~278~~270,~~888~~862.6204 Scheduled Principal ~~106~~103,~~311~~321.3250 5754,~~578~~387.0105 ~~121~~119,~~970~~195.6662 Unscheduled Principal 43,~~625~~704,~~464~~960.1426 34,~~679~~641,~~528~~832.0276 ~~932~~481,~~729~~349.3471 Scheduled Interest ~~714~~686,~~618~~021.5247 ~~470~~445,~~366~~610.7045 ~~156~~151,~~917~~666.9642 Servicing Fees 2524,~~113~~127.1440 1514,~~234~~455.1463 6,~~654~~434.0835 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 11,~~989~~373.7264 2826,~~389~~943.1540 0.00 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest ~~677~~650,~~515~~520.6643 ~~426~~404,~~743~~211.4142 ~~150~~145,~~263~~232.8807 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.00 0.00 0.00 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 6.~~744619~~740472 76.~~003073~~990576 5.~~645546~~642832

Group Level Collateral Statement Group Group 4 Group 5 Total Collateral Description Fixed 30 Year Fixed 30 Year Fixed 30 Year Weighted Average Coupon Rate 6.~~517544~~542289 7.~~774156~~766459 7.~~151010~~143836 Weighted Average Net Rate 6.~~267541~~292290 7.~~524157~~516461 6.~~673497~~893836 Weighted Average Maturity ~~170~~169 ~~349~~348 ~~317~~316 Beginning Loan Count 9794 5452 21,~~029~~959 Loans Paid In Full 31 27 7067 Ending Loan Count 9493 5245 1,~~959~~892 Beginning Scheduled Balance 1715,~~000~~912,~~230~~126.2315 2221,~~149~~324,~~020~~974.6196 ~~264~~253,~~756~~320,~~102~~371.5432 Ending scheduled Balance 15,~~912~~677,~~126~~972.1590 2118,~~324~~397,~~974~~430.9669 ~~253~~241,~~320~~053,~~371~~626.3290 Record Date 0809/3130/2003 0809/3130/2003 0809/3130/2003 Principal And Interest Constant ~~153~~144,~~137~~214.3623 ~~160~~154,~~273~~323.51 1,~~941~~858,~~174~~740.0425 Scheduled Principal 6057,~~804~~462.2479 16,~~781~~307.9022 ~~363~~350,~~446~~674.1318 Unscheduled Principal 1176,~~027,299~~690.8446 ~~807~~2,~~263~~911,237.7505 11,~~072~~916,~~285~~070.0924 Scheduled Interest 9286,~~333~~751.1244 ~~143~~138,~~491~~016.6129 1,~~577~~508,~~727~~066.9107 Servicing Fees 3,~~541~~315.7501 4,~~614~~442.3568 5552,~~157~~775.4607 Master Servicing Fees 0.00 0.00 0.00 Trustee Fee 0.00 0.00 0.00 FRY Amount 0.00 0.00 0.00 Special Hazard Fee 0.00 0.00 0.00 Other Fee 1,~~085~~081.1053 8,~~732~~480.2532 5047,~~196~~878.2289 Pool Insurance Fee 0.00 0.00 0.00 Spread Fee 1 0.00 0.00 0.00 Spread Fee 2 0.00 0.00 0.00 Spread Fee 3 0.00 0.00 0.00 Net Interest 8782,~~706~~354.2790 ~~130~~125,~~145~~093.0129 1,~~472~~407,~~374~~412.2311 Realized Loss Amount 0.00 0.00 0.00 Cumulative Realized Loss 0.00 0.00 0.00 Percentage of Cumulative Losses 0.00 0.00 0.00 Prepayment Penalties 0.00 0.00 0.00 Special Servicing Fee 0.00 0.00 0.00 Pass-Through Rate 6.~~190948~~210726 7.~~051054~~039254 6.~~673497~~667030

Filing Compare · MORTGAGE ASSET SECURIT TRANS INC MORT PS THR CERT SER 2003-1