8-K 1 baa03001_sep.txt SEPTEMBER 8K 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): September 27, 2004 BANC OF AMERICA 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 333-101500-03 54-2090855 Pooling and Servicing Agreement) (Commission 54-2090856 (State or other File Number) IRS EIN jurisdiction of Incorporation) c/o Wells Fargo Bank, 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) Check the appropriate box below if the Form 8-K filing 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)) ITEM 8.01 Other Events On September 27, 2004 a distribution was made to holders of BANC OF AMERICA ALTERNATIVE LOAN TRUST, Mortgage Pass-Through Certificates, Series 2003-1 Trust. ITEM 9.01 Financial Statements and Exhibits (c) Exhibits Exhibit Number Description EX-99.1 Monthly report distributed to holders of Mortgage Pass-Through Certificates, Series 2003-1 Trust, relating to the September 27, 2004 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. BANC OF AMERICA ALTERNATIVE LOAN TRUST Mortgage Pass-Through Certificates, Series 2003-1 Trust (Registrant) By: Wells Fargo Bank, N.A. as Trustee By: /s/ Beth Belfield as Assistant Vice President By: Beth Belfield as Assistant Vice President Date: 9/27/2004 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 September 27, 2004 distribution. EX-99.1

Banc of America Alternative Loan Trust Mortgage Pass-~~Backed~~Through ~~Callable~~ Certificates Record Date: 78/31/042004 Distribution Date: 89/2527/042004 BAA Series: 2003-1 Contact: CTSLink Customer Service Wells Fargo Bank, N.A. Corporate Trust Services 9062 Old Annapolis Road Columbia, MD 21045-1951 Telephone: (301) 815-6600 Fax: (301) 815-6600 Certificateholder Distribution Summary Certificate Certificate Beginning Class Pass-Through Certificate Interest Principal Class CUSIP Description Rate Balance Distribution Distribution A-1 05948KAA7 SEN 5.00000% 6059,~~990~~174,~~674~~266.1138 ~~254~~246,~~127~~559.7947 1,~~816~~696,~~407~~725.7330 A-2 05948KAB5 SEN 5.50000% 6059,~~990~~174,~~674~~266.1138 ~~279~~271,~~540~~215.5741 1,~~816~~696,~~407~~725.7330 A-3 05948KAC3 SEN 12.~~94000~~10500% 3635,~~594~~504,~~403~~559.7716 5962,~~160~~280.9592 1,~~089~~018,~~844~~035.6216 A-4 05948KAD1 SEN 6.~~56000~~39500% 0.00 ~~200~~189,~~049~~209.3973 0.00 A-5 05948KAE9 SEN 6.00000% 1,~~093~~099,~~922~~391.2283 5,~~469~~496.6196 (5,~~469~~496.6196) A-6 05948KAF6 SEN 6.00000% 32,500,000.00 162,~~499~~500.9901 0.00 A-PO 05948KAK5 PO 0.00000% 1,~~175~~152,~~273~~837.6701 0.00 2214,~~436~~166.6650 A-WIO 05948KAJ8 IO 0.~~33651~~33679% 0.00 4140,~~858~~841.8288 0.00 B-1 05948KAL3 SUB 6.00000% 8,~~463~~453,~~237~~599.9168 42,~~316~~268.1900 9,~~638~~681.2355 B-2 05948KAM1 SUB 6.00000% 3,~~193~~190,~~711~~074.7261 15,~~968~~950.5637 3,~~637~~653.1146 B-3 05948KAN9 SUB 6.00000% 1,~~596~~595,~~855~~037.8630 7,~~984~~975.2819 1,~~818~~826.5573 B-4 05948KAP4 SUB 6.00000% 1,~~277~~276,~~877~~421.2899 6,~~389~~382.3911 1,~~455~~461.2983 B-5 05948KAQ2 SUB 6.00000% ~~957~~956,~~917~~826.2231 4,~~789~~784.5913 1,~~090~~095.9181 B-6 05948KAR0 SUB 6.00000% ~~958~~957,~~618~~527.8009 4,~~793~~787.0964 1,~~091~~096.7162 A-R 05948KAG4 SEN 6.00000% 0.00 0.00 0.00 A-LR 05948KAH2 SEN 6.00000% 0.00 0.00 0.00 SES ANCOF031SES SEN 0.00000% 0.00 3836,~~794~~668.9160 0.00 Totals ~~209~~205,~~793~~034,~~166~~807.6774 1,~~123~~096,~~743~~920.1342 4,~~758~~438,~~358~~971.9330

Certificateholder Distribution Summary (continued) Current Ending Cumulative Realized Certificate Total Realized Class Loss Balance Distribution Losses A-1 0.00 5957,~~174~~477,~~266~~541.3808 21,~~070~~943,~~535~~284.5277 0.00 A-2 0.00 5957,~~174~~477,~~266~~541.3808 21,~~095~~967,~~948~~940.3071 0.00 A-3 0.00 3534,~~504~~486,~~559~~523.1699 1,~~149~~080,~~005~~316.5708 0.00 A-4 0.00 0.00 ~~200~~189,~~049~~209.3973 0.00 A-5 0.00 1,~~099~~104,~~391~~888.8379 0.00 0.00 A-6 0.00 32,500,000.00 162,~~499~~500.9901 0.00 A-PO 0.00 1,~~152~~138,~~837~~670.0151 2214,~~436~~166.6650 0.00 A-WIO 0.00 0.00 4140,~~858~~841.8288 0.00 B-1 0.00 8,~~453~~443,~~599~~918.6813 51,~~954~~949.4255 0.00 B-2 0.00 3,~~190~~186,~~074~~421.6115 19,~~605~~603.6783 0.00 B-3 0.00 1,~~595~~593,~~037~~210.3058 9,~~802~~801.8392 0.00 B-4 0.00 1,~~276~~274,~~421~~960.9915 7,~~844~~843.6894 0.00 B-5 0.00 ~~956~~955,~~826~~730.3150 5,~~880~~879.5094 0.00 B-6 0.00 ~~957~~956,~~527~~430.0948 5,884.8026 0.00 A-R 0.00 0.00 0.00 0.00 A-LR 0.00 0.00 0.00 0.00 SES 0.00 0.00 3836,~~794~~668.9160 0.00 Totals 0.00 ~~205~~200,~~034~~595,~~807~~836.7444 5,~~882~~535,~~102~~891.0672 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) A-1 105,253,462.00 6059,~~990~~174,~~674~~266.1138 8482,~~270~~672.4780 1,~~732~~614,~~137~~052.2650 0.00 0.00 A-2 105,253,462.00 6059,~~990~~174,~~674~~266.1138 8482,~~270~~672.4780 1,~~732~~614,~~137~~052.2650 0.00 0.00 A-3 63,152,076.00 3635,~~594~~504,~~403~~559.7716 5049,~~562~~603.2868 1968,~~039,282~~431.3348 0.00 0.00 A-4 0.00 0.00 0.00 0.00 0.00 0.00 A-5 1,000,000.00 1,~~093~~099,~~922~~391.2283 0.00 0.00 (5,~~469~~496.6196) 0.00 A-6 32,500,000.00 32,500,000.00 0.00 0.00 0.00 0.00 A-PO 1,480,975.00 1,~~175~~152,~~273~~837.6701 1,~~590~~561.7832 2012,~~845~~605.8818 0.00 0.00 A-WIO 0.00 0.00 0.00 0.00 0.00 0.00 B-1 8,623,000.00 8,~~463~~453,~~237~~599.9168 9,~~638~~681.2355 0.00 0.00 0.00 B-2 3,254,000.00 3,~~193~~190,~~711~~074.7261 3,~~637~~653.1146 0.00 0.00 0.00 B-3 1,627,000.00 1,~~596~~595,~~855~~037.8630 1,~~818~~826.5573 0.00 0.00 0.00 B-4 1,302,000.00 1,~~277~~276,~~877~~421.2899 1,~~455~~461.2983 0.00 0.00 0.00 B-5 976,000.00 ~~957~~956,~~917~~826.2231 1,~~090~~095.9181 0.00 0.00 0.00 B-6 976,714.00 ~~958~~957,~~618~~527.8009 1,~~091~~096.7162 0.00 0.00 0.00 A-R 50.00 0.00 0.00 0.00 0.00 0.00 A-LR 50.00 0.00 0.00 0.00 0.00 0.00 SES 0.00 0.00 0.00 0.00 0.00 0.00 Totals 325,398,789.00 ~~209~~205,~~793~~034,~~166~~807.6774 ~~239~~235,~~425~~326.8060 4,~~524~~209,~~402~~141.7366 (5,~~469~~496.6196) 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 A-1 1,~~816~~696,~~407~~725.7330 5957,~~174~~477,~~266~~541.3808 0.~~56220732~~54608694 1,~~816~~696,~~407~~725.7330 A-2 1,~~816~~696,~~407~~725.7330 5957,~~174~~477,~~266~~541.3808 0.~~56220732~~54608694 1,~~816~~696,~~407~~725.7330 A-3 1,~~089~~018,~~844~~035.6216 3534,~~504~~486,~~559~~523.1699 0.~~56220732~~54608694 1,~~089~~018,~~844~~035.6216 A-4 0.00 0.00 0.00000000 0.00 A-5 (5,~~469~~496.6196) 1,~~099~~104,~~391~~888.8379 1.~~09939183~~10488879 (5,~~469~~496.6196) A-6 0.00 32,500,000.00 1.00000000 0.00 A-PO 2214,~~436~~166.6650 1,~~152~~138,~~837~~670.0151 0.~~77843111~~76886545 2214,~~436~~166.6650 A-WIO 0.00 0.00 0.00000000 0.00 B-1 9,~~638~~681.2355 8,~~453~~443,~~599~~918.6813 0.~~98035483~~97923207 9,~~638~~681.2355 B-2 3,~~637~~653.1146 3,~~190~~186,~~074~~421.6115 0.~~98035483~~97923207 3,~~637~~653.1146 B-3 1,~~818~~826.5573 1,~~595~~593,~~037~~210.3058 0.~~98035482~~97923207 1,~~818~~826.5573 B-4 1,~~455~~461.2983 1,~~276~~274,~~421~~960.9915 0.~~98035483~~97923207 1,~~455~~461.2983 B-5 1,~~090~~095.9181 ~~956~~955,~~826~~730.3150 0.~~98035483~~97923207 1,~~090~~095.9181 B-6 1,~~091~~096.7162 ~~957~~956,~~527~~430.0948 0.~~98035565~~97923290 1,~~091~~096.7162 A-R 0.00 0.00 0.00000000 0.00 A-LR 0.00 0.00 0.00000000 0.00 SES 0.00 0.00 0.00000000 0.00 Totals 4,~~758~~438,~~358~~971.9330 ~~205~~200,~~034~~595,~~807~~836.7444 0.~~63010317~~61646153 4,~~758~~438,~~358~~971.9330

Principal Distribution Factors Statement Original Beginning Scheduled Unscheduled Face Certificate Principal Principal Class (2) Amount Balance Distribution Distribution Accretion A-1 105,253,462.00 ~~579~~562.~~46477913~~20731609 0.~~80064321~~78546395 1615.~~45681982~~33491126 0.00000000 A-2 105,253,462.00 ~~579~~562.~~46477913~~20731609 0.~~80064321~~78546395 1615.~~45681982~~33491126 0.00000000 A-3 63,152,076.00 ~~579~~562.~~46477912~~20731619 0.~~80064320~~78546396 1615.~~45681973~~33491124 0.00000000 A-4 0.00 0.00000000 0.00000000 0.00000000 0.00000000 A-5 1,000,000.00 ~~1093~~1099.~~92222000~~39183000 0.00000000 0.00000000 (5.~~46961000~~49696000) A-6 32,500,000.00 1000.00000000 0.00000000 0.00000000 0.00000000 A-PO 1,480,975.00 ~~793~~778.~~58103277~~43110789 1.~~07414372~~05425142 148.~~07578116~~51140634 0.00000000 A-WIO 0.00 0.00000000 0.00000000 0.00000000 0.00000000 B-1 8,623,000.00 ~~981~~980.~~47256291~~35482779 1.~~11773513~~12275890 0.00000000 0.00000000 B-2 3,254,000.00 ~~981~~980.~~47256300~~35482790 1.~~11773510~~12275968 0.00000000 0.00000000 B-3 1,627,000.00 ~~981~~980.~~47256300~~35482483 1.~~11773202~~12275968 0.00000000 0.00000000 B-4 1,302,000.00 ~~981~~980.~~47256528~~35483103 1.~~11773425~~12275730 0.00000000 0.00000000 B-5 976,000.00 ~~981~~980.~~47256148~~35482582 1.~~11773566~~12275615 0.00000000 0.00000000 B-6 976,714.00 ~~981~~980.~~47338934~~35565171 1.~~11773764~~12276470 0.00000000 0.00000000 A-R 50.00 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 0.00000000 0.00000000 0.00000000 0.00000000 SES 0.00 0.00000000 0.00000000 0.00000000 0.00000000 (2) All Classes are per $1,000 denomination.

Principal Distribution Factors Statement (continued) Total Ending Ending Total Realized Principal Certificate Certificate Principal Class Loss (3) Reduction Balance Percentage Distribution A-1 0.00000000 1716.~~25746304~~12037521 ~~562~~546.~~20731609~~08694087 0.~~56220732~~54608694 1716.~~25746304~~12037521 A-2 0.00000000 1716.~~25746304~~12037521 ~~562~~546.~~20731609~~08694087 0.~~56220732~~54608694 1716.~~25746304~~12037521 A-3 0.00000000 1716.~~25746308~~12037520 ~~562~~546.~~20731619~~08694083 0.~~56220732~~54608694 1716.~~25746308~~12037520 A-4 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-5 0.00000000 (5.~~46961000~~49696000) 1,~~099~~104.~~39183000~~88879000 1.~~09939183~~10488879 (5.~~46961000~~49696000) A-6 0.00000000 0.00000000 1,000.00000000 1.00000000 0.00000000 A-PO 0.00000000 159.~~14992488~~56565776 ~~778~~768.~~43110789~~86545013 0.~~77843111~~76886545 159.~~14992488~~56565776 A-WIO 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 B-1 0.00000000 1.~~11773513~~12275890 ~~980~~979.~~35482779~~23206889 0.~~98035483~~97923207 1.~~11773513~~12275890 B-2 0.00000000 1.~~11773510~~12275968 ~~980~~979.~~35482790~~23206822 0.~~98035483~~97923207 1.~~11773510~~12275968 B-3 0.00000000 1.~~11773202~~12275968 ~~980~~979.~~35482483~~23207130 0.~~98035482~~97923207 1.~~11773202~~12275968 B-4 0.00000000 1.~~11773425~~12275730 ~~980~~979.~~35483103~~23206605 0.~~98035483~~97923207 1.~~11773425~~12275730 B-5 0.00000000 1.~~11773566~~12275615 ~~980~~979.~~35482582~~23206967 0.~~98035483~~97923207 1.~~11773566~~12275615 B-6 0.00000000 1.~~11773764~~12276470 ~~980~~979.~~35565171~~23289725 0.~~98035565~~97923290 1.~~11773764~~12276470 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 SES 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 (3) Amount Does Not Include Excess Special Hazard, 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 A-1 105,253,462.00 5.00000% 6059,~~990~~174,~~674~~266.1138 ~~254~~246,~~127~~559.8144 0.00 0.00 A-2 105,253,462.00 5.50000% 6059,~~990~~174,~~674~~266.1138 ~~279~~271,~~540~~215.5939 0.00 0.00 A-3 63,152,076.00 12.~~94000~~10500% 3635,~~594~~504,~~403~~559.7716 5962,~~160~~280.9591 0.00 0.00 A-4 0.00 6.~~56000~~39500% 3635,~~594~~504,~~403~~559.7716 ~~200~~189,~~049~~209.4171 0.00 0.00 A-5 1,000,000.00 6.00000% 1,~~093~~099,~~922~~391.2283 5,~~469~~496.6196 0.00 0.00 A-6 32,500,000.00 6.00000% 32,500,000.00 162,500.00 0.00 0.00 A-PO 1,480,975.00 0.00000% 1,~~175~~152,~~273~~837.6701 0.00 0.00 0.00 A-WIO 0.00 0.~~33651~~33679% ~~149~~145,~~269~~521,~~756~~513.8863 4140,~~858~~841.8288 0.00 0.00 B-1 8,623,000.00 6.00000% 8,~~463~~453,~~237~~599.9168 42,~~316~~268.1900 0.00 0.00 B-2 3,254,000.00 6.00000% 3,~~193~~190,~~711~~074.7261 15,~~968~~950.5637 0.00 0.00 B-3 1,627,000.00 6.00000% 1,~~596~~595,~~855~~037.8630 7,~~984~~975.2819 0.00 0.00 B-4 1,302,000.00 6.00000% 1,~~277~~276,~~877~~421.2899 6,~~389~~382.3911 0.00 0.00 B-5 976,000.00 6.00000% ~~957~~956,~~917~~826.2231 4,~~789~~784.5913 0.00 0.00 B-6 976,714.00 6.00000% ~~958~~957,~~618~~527.8009 4,~~793~~787.0964 0.00 0.00 A-R 50.00 6.00000% 0.00 0.00 0.00 0.00 A-LR 50.00 6.00000% 0.00 0.00 0.00 0.00 SES 0.00 0.00000% ~~209~~205,~~793~~034,~~166~~807.6775 0.00 0.00 0.00 Totals 325,398,789.00 1,~~084~~060,~~948~~251.2973 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 A-1 (0.02) 0.00 ~~254~~246,~~127~~559.7947 0.00 5957,~~174~~477,~~266~~541.3808 A-2 (0.02) 0.00 ~~279~~271,~~540~~215.5741 0.00 5957,~~174~~477,~~266~~541.3808 A-3 (0.0001) 0.00 5962,~~160~~280.9592 0.00 3534,~~504~~486,~~559~~523.1699 A-4 (0.0102) 0.00 ~~200~~189,~~049~~209.3973 0.00 3534,~~504~~486,~~559~~523.1699 A-5 0.00 0.00 5,~~469~~496.6196 0.00 1,~~099~~104,~~391~~888.8379 A-6 (0.01) 0.00 162,~~499~~500.9901 0.00 32,500,000.00 A-PO 0.00 0.00 0.00 0.00 1,~~152~~138,~~837~~670.0151 A-WIO 0.00 0.00 4140,~~858~~841.8288 0.00 ~~145~~141,~~521~~662,~~513~~725.6301 B-1 0.00 0.00 42,~~316~~268.1900 0.00 8,~~453~~443,~~599~~918.6813 B-2 0.00 0.00 15,~~968~~950.5637 0.00 3,~~190~~186,~~074~~421.6115 B-3 0.00 0.00 7,~~984~~975.2819 0.00 1,~~595~~593,~~037~~210.3058 B-4 0.00 0.00 6,~~389~~382.3911 0.00 1,~~276~~274,~~421~~960.9915 B-5 0.00 0.00 4,~~789~~784.5913 0.00 ~~956~~955,~~826~~730.3150 B-6 0.00 0.00 4,~~793~~787.0964 0.00 ~~957~~956,~~527~~430.0948 A-R 0.00 0.00 0.00 0.00 0.00 A-LR 0.00 0.00 0.00 0.00 0.00 SES 0.00 0.00 3836,~~794~~668.9160 0.00 ~~205~~200,~~034~~595,~~807~~836.7544 Totals (0.0608) 0.00 1,~~123~~096,~~743~~920.1342 0.00 (4) Amount Does Not Include Excess Special Hazard, 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 A-1 105,253,462.00 5.00000% ~~579~~562.~~46477913~~20731609 2.~~41443659~~34253045 0.00000000 0.00000000 A-2 105,253,462.00 5.50000% ~~579~~562.~~46477913~~20731609 2.~~65588024~~57678356 0.00000000 0.00000000 A-3 63,152,076.00 12.~~94000~~10500% ~~579~~562.~~46477912~~20731619 0.~~93680135~~98620527 0.00000000 0.00000000 A-4 0.00 6.~~56000~~39500% ~~579~~562.~~46477912~~20731619 32.~~16774084~~99609644 0.00000000 0.00000000 A-5 1,000,000.00 6.00000% ~~1093~~1099.~~92222000~~39183000 5.~~46961000~~49696000 0.00000000 0.00000000 A-6 32,500,000.00 6.00000% 1000.00000000 5.00000000 0.00000000 0.00000000 A-PO 1,480,975.00 0.00000% ~~793~~778.~~58103277~~43110789 0.00000000 0.00000000 0.00000000 A-WIO 0.00 0.~~33651~~33679% ~~612~~597.~~59759735~~21494478 0.~~17178706~~16761357 0.00000000 0.00000000 B-1 8,623,000.00 6.00000% ~~981~~980.~~47256291~~35482779 4.~~90736287~~90177432 0.00000000 0.00000000 B-2 3,254,000.00 6.00000% ~~981~~980.~~47256300~~35482790 4.~~90736325~~90177320 0.00000000 0.00000000 B-3 1,627,000.00 6.00000% ~~981~~980.~~47256300~~35482483 4.~~90736325~~90177628 0.00000000 0.00000000 B-4 1,302,000.00 6.00000% ~~981~~980.~~47256528~~35483103 4.~~90736559~~90177419 0.00000000 0.00000000 B-5 976,000.00 6.00000% ~~981~~980.~~47256148~~35482582 4.~~90736680~~90177254 0.00000000 0.00000000 B-6 976,714.00 6.00000% ~~981~~980.~~47338934~~35565171 4.~~90736285~~90178292 0.00000000 0.00000000 A-R 50.00 6.00000% 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 50.00 6.00000% 0.00000000 0.00000000 0.00000000 0.00000000 SES 0.00 0.00000% ~~644~~630.~~72632893~~10316781 0.00000000 0.00000000 0.00000000 (5) All Classes are per $1,000 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 A-1 (0.00000019) 0.00000000 2.~~41443640~~34253074 0.00000000 ~~562~~546.~~20731609~~08694087 A-2 (0.00000019) 0.00000000 2.~~65588005~~57678375 0.00000000 ~~562~~546.~~20731609~~08694087 A-3 (0.~~00000000~~00000016) 0.00000000 0.~~93680135~~98620543 0.00000000 ~~562~~546.~~20731619~~08694083 A-4 (0.~~00000016~~00000032) 0.00000000 32.~~16774052~~99609676 0.00000000 ~~562~~546.~~20731619~~08694083 A-5 0.00000000 0.00000000 5.~~46961000~~49696000 0.00000000 ~~1099~~1104.~~39183000~~88879000 A-6 (0.00000031) 0.00000000 45.~~99999969~~00000031 0.00000000 1000.00000000 A-PO 0.00000000 0.00000000 0.00000000 0.00000000 ~~778~~768.~~43110789~~86545013 A-WIO 0.00000000 0.00000000 0.~~17178706~~16761357 0.00000000 ~~597~~581.~~21494478~~37861807 B-1 0.00000000 0.00000000 4.~~90736287~~90177432 0.00000000 ~~980~~979.~~35482779~~23206889 B-2 0.00000000 0.00000000 4.~~90736325~~90177320 0.00000000 ~~980~~979.~~35482790~~23206822 B-3 0.00000000 0.00000000 4.~~90736325~~90177628 0.00000000 ~~980~~979.~~35482483~~23207130 B-4 0.00000000 0.00000000 4.~~90736559~~90177419 0.00000000 ~~980~~979.~~35483103~~23206605 B-5 0.00000000 0.00000000 4.~~90736680~~90177254 0.00000000 ~~980~~979.~~35482582~~23206967 B-6 0.00000000 0.00000000 4.~~90736285~~90178292 0.00000000 ~~980~~979.~~35565171~~23289725 A-R 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 A-LR 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 SES 0.00000000 0.00000000 0.~~11922266~~11268819 0.00000000 ~~630~~616.~~10316781~~46153342 (6) Amount Does Not Include Excess Special Hazard, 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 5,~~892~~545,~~154~~716.6331 Liquidations, Insurance Proceeds, Reserve Funds 0.00 Proceeds from Repurchased Loans 0.00 Other Amounts (Servicer Advances) 0.00 Realized Loss (Gains, Subsequent Expenses & Recoveries) 0.00 Prepayment Penalties 0.00 Total Deposits 5,~~892~~545,~~154~~716.6331 Withdrawals Reimbursement for Servicer Advances 0.00 Payment of Service Fee 109,~~052~~824.5759 Payment of Interest and Principal 5,~~882~~535,~~102~~891.0672 Total Withdrawals (Pool Distribution Amount) 5,~~892~~545,~~154~~716.6331 Ending Balance 0.00

SERVICING FEES Gross Servicing Fee 8,~~741~~543.3811 Trustee Fee 1,~~311~~281.1948 Supported Prepayment/Curtailment Interest Shortfall 0.00 Net Servicing Fee 109,~~052~~824.5759

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 1 1 0 2 9291,~~013~~919.8942 40,~~212~~169.5494 0.00 132,~~226~~089.4336 30 Days 6 0 10 0 76 ~~689~~584,~~835~~874.2522 0.00 ~~123,830~~0.9500 0.00 ~~813~~584,~~666~~874.2022 60 Days 01 0 0 0 01 0200,760.0007 0.00 0.00 0.00 0200,760.0007 90 Days 0 0 10 0 10 0.00 0.00 ~~284,419~~0.3400 0.00 ~~284,419~~0.3400 120 Days 1 0 0 1 0 1 ~~554,387.74~~ 0.00 0.00 284,419.34 0.00 ~~554~~284,~~387~~419.7434 150 Days 1 0 0 0 1 86554,~~478~~387.1574 0.00 0.00 0.00 86554,~~478~~387.1574 180+ Days 12 0 0 0 12 51137,~~289~~767.5873 0.00 0.00 0.00 51137,~~289~~767.5873 Totals 910 1 32 0 13 1,~~381~~477,~~990~~789.7276 9291,~~013~~919.8942 ~~448~~324,~~462~~589.8328 0.00 1,~~922~~894,~~467~~298.4446 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.~~060459~~061576% 0.~~060459~~061576% 0.000000% 0.~~120919~~123153% 0.~~044833~~045777% 0.~~019593~~020005% 0.000000% 0.~~064427~~065782% 30 Days 0.~~362757~~369458% 0.000000% 0.~~060459~~000000% 0.000000% 0.~~423216~~369458% 0.~~336119~~291274% 0.000000% 0.~~060336~~000000% 0.000000% 0.~~396455~~291274% 60 Days 0.~~000000~~061576% 0.000000% 0.000000% 0.000000% 0.~~000000~~061576% 0.~~000000~~099981% 0.000000% 0.000000% 0.000000% 0.~~000000~~099981% 90 Days 0.000000% 0.000000% 0.~~060459~~000000% 0.000000% 0.~~060459~~000000% 0.000000% 0.000000% 0.~~138582~~000000% 0.000000% 0.~~138582~~000000% 120 Days 0.~~060459~~000000% 0.000000% 0.~~000000~~061576% 0.000000% 0.~~060459~~061576% 0.~~270123~~000000% 0.000000% 0.~~000000~~141644% 0.000000% 0.~~270123~~141644% 150 Days 0.~~060459~~061576% 0.000000% 0.000000% 0.000000% 0.~~060459~~061576% 0.~~042136~~276092% 0.000000% 0.000000% 0.000000% 0.~~042136~~276092% 180+ Days 0.~~060459~~123153% 0.000000% 0.000000% 0.000000% 0.~~060459~~123153% 0.~~024991~~068610% 0.000000% 0.000000% 0.000000% 0.~~024991~~068610% Totals 0.~~544135~~615764% 0.~~060459~~061576% 0.~~181378~~123153% 0.000000% 0.~~785973~~800493% 0.~~673368~~735957% 0.~~044833~~045777% 0.~~218511~~161649% 0.000000% 0.~~936712~~943384%

OTHER INFORMATION Current Period Class A Insufficient Funds 0.00 Principal Balance of Contaminated Properties 0.00 Periodic Advance 11,~~556~~276.0513

SUBORDINATION LEVEL/CLASS PERCENTAGE AND PREPAYMENT PERCENTAGE Current Original $ Original % Current $ Current % Class% Prepayment% Class A 18,239,689.00 5.60533401% 17,~~582~~549,~~323~~341.9950 8.~~57528738~~74860706% 91.~~941668~~772333% 0.000000% Class B-1 8,135,714.00 2.50022873% 7,~~975~~966,~~887~~752.3086 3.~~89001623~~97154448% 4.~~146320~~233449% 51.453826% Class B-2 4,881,714.00 1.50022501% 4,~~785~~780,~~812~~331.6971 2.~~33414645~~38306627% 1.~~564667~~597547% 19.416763% Class B-3 3,254,714.00 1.00022314% 3,~~190~~187,~~775~~121.3913 1.~~55621156~~58882716% 0.~~782334~~798773% 9.708382% Class B-4 1,952,714.00 0.60009873% 1,~~914~~912,~~353~~160.4098 0.~~93367239~~95324061% 0.~~626059~~639215% 7.769092% Class B-5 976,714.00 0.30015908% ~~957~~956,~~527~~430.0948 0.~~46700709~~47679478% 0.~~469304~~479166% 5.823836% Class B-6 0.00 0.00000000% 0.00 0.00000000% 0.~~469648~~479517% 5.828101% Please Refer to the Prospectus Supplement for a Full Description of Loss Exposure

COLLATERAL STATEMENT Collateral Description Mixed Fixed & Arm Weighted Average Gross Coupon 6.~~463316~~462799% Weighted Average Pass-Through Rate 6.~~205816~~205298% Weighted Average Maturity(Stepdown Calculation ) ~~334~~333 Beginning Scheduled Collateral Loan Count 1,~~687~~654 Number Of Loans Paid In Full 3330 Ending Scheduled Collateral Loan Count 1,~~654~~624 Beginning Scheduled Collateral Balance ~~209~~205,~~793~~034,~~166~~807.6775 Ending Scheduled Collateral Balance ~~205~~200,~~034~~595,~~807~~836.7544 Ending Actual Collateral Balance at 31-~~Jul~~Aug-2004 ~~205~~200,~~235~~798,~~614~~323.8387 Monthly P &I Constant 1,~~369~~339,~~138~~307.3968 Special Servicing Fee 0.00 Prepayment Penalties 0.00 Realized Loss Amount 0.00 Cumulative Realized Loss 0.00 Class A Optimal Amount 5,~~719~~384,~~897~~093.6509 Class AP Deferred Amount 0.00 Ending Scheduled Balance for Premium Loans ~~205~~200,~~034~~595,~~807~~836.7544 Scheduled Principal ~~239~~235,~~172~~058.0577 Unscheduled Principal 4,~~519~~203,~~186~~912.8754

Miscellaneous Reporting Priority % 15.~~578721~~940595% CPR 2322.~~019662~~033160% Senior % 9291.~~115624~~941668% Senior Prepayment % 100.000000% Subordinate % 78.~~884376~~058332% Subordinate Prepayment % 0.000000%

Filing Compare · BANC OF AMERICA MORT SEC INC ALTERNATIVE LOAN TRUST 2003-1