-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, Sgv8QnXNFg7SazhCfgoOh5OZ7h4B7FpbvKIYGOxBb9kzPy99KZQKrln3SAjkmfuw 3UkRS0zw9P8phKvv0hBMbw== 0001285923-04-001497.txt : 20041229 0001285923-04-001497.hdr.sgml : 20041229 20041229160037 ACCESSION NUMBER: 0001285923-04-001497 CONFORMED SUBMISSION TYPE: 8-K PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20041227 ITEM INFORMATION: Other Events ITEM INFORMATION: Financial Statements and Exhibits FILED AS OF DATE: 20041229 DATE AS OF CHANGE: 20041229 FILER: COMPANY DATA: COMPANY CONFORMED NAME: WASHINGTON MUTUAL MORT SEC CORP WAMU MO PA TH CE SE 03 S6 CENTRAL INDEX KEY: 0001245821 STANDARD INDUSTRIAL CLASSIFICATION: ASSET-BACKED SECURITIES [6189] IRS NUMBER: 942528990 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 8-K SEC ACT: 1934 Act SEC FILE NUMBER: 333-103345-11 FILM NUMBER: 041231228 BUSINESS ADDRESS: STREET 1: 75 N FAIRWAY DR CITY: VERNON HILLS STATE: IL ZIP: 60061 8-K 1 signwamu2003_s6.htm LETTER

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):  December 27, 2004
 

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.

WAMU MORTGAGE PASS-THROUGH CERTIFICATES
SERIES 2003-S6
(Exact name of Registrant as specified in its charter)

Delaware 333-103345-11 94-2528990
(State or other jurisdiction
of incorporation)		 (Commission File Number)(I.R.S. Employer
Identification No.)

1201 THIRD AVENUE, WMT 1706
SEATTLE, WASHINGTON 98101
 (Address of principal executive offices and Zip Code)

Registrant's telephone number, including area code: (206) 377-8555

 

SECTION 8.  OTHER EVENTS

ITEM 8.01 Other Events

     This Current Report on Form 8-K relates to the distribution report furnished to certificate holders in connection with the December 2004 distribution.

SECTION 9.    FINANCIAL STATEMENTS AND EXHIBITS

ITEM 9.01 Financial Statements and Exhibits

(a) Not applicable

(b) Not applicable

(c)  Exhibits

Exhibit No.

Description

99.1

WaMu Mortgage Pass-Through Certificates, Series 2003-S6
Monthly Distribution Report for December 2004

 

 

2

SIGNATURES

     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.

    WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.

Date:       December 29, 2004
 
By:
 
/s/ Tammy Spriggs
Tammy Spriggs
First Vice President
(Authorized Officer)

 

 

 

 

3

 

 

EXHIBIT INDEX

 

Exhibit No.

Description

99.1

WaMu Mortgage Pass-Through Certificates, Series 2003-S6
Monthly Distribution Report for December 2004

 EX-99 2 wamu2003_s6.htm EXHIBIT


WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
 
Class Cusip Orig Prin Bal Begin Prin Bal Int Rate Accrued Int Rate Paid Int Dist Prin Dist Int Shortfall PPIS Uncomp Int Shortfall Prin Loss Deferred Interest Int Reimbursed Unsched Int Prin Reimbursed Subsequent Recoveries Total Dist Ending Class Bal
IA 9292276V3 $51,519,000.00 $43,891,277.74 4.5000000000% 4.5000000000% $164,592.29 $787,032.82 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $951,625.11 $43,104,244.92
IIA1 9292276W1 $99,000,000.00 $66,758,181.23 5.0000000000% 5.0000000000% $278,159.09 $1,337,136.70 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $1,615,295.79 $65,421,044.53
IIA2 9292276X9 $70,000,000.00 $47,202,754.41 4.5000000000% 4.5000000000% $177,010.33 $945,450.19 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $1,122,460.52 $46,257,304.22
IIA3 9292276Y7 $273,871,000.00 $184,678,079.31 4.7500000000% 4.7500000000% $731,017.40 $3,699,019.85 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $4,430,037.25 $180,979,059.46
IIA4 9292276Z4 $37,822,000.00 $25,504,322.54 2.5875000000% 2.5875000000% $54,993.70 $510,840.25 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $565,833.94 $24,993,482.29
IIA5 9292277A8 $37,822,000.00 $25,504,322.54 5.4125000000% 5.4125000000% $115,035.12 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $115,035.12 $24,993,482.29
IIA6 9292277B6 $50,000,000.00 $33,716,253.13 3.4400000000% 3.4400000000% $96,653.26 $675,321.57 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $771,974.82 $33,040,931.56
IIA7 9292277C4 $15,600,000.00 $10,519,470.98 5.0000000000% 5.0000000000% $43,831.13 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $43,831.13 $10,308,770.65
IIA8 9292277D2 $41,667,000.00 $28,097,102.39 2.5875000000% 2.5875000000% $60,584.38 $562,772.47 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $623,356.85 $27,534,329.92
IIA9 9292277E0 $41,667,000.00 $28,097,102.39 0.0500000000% 0.0500000000% $1,170.71 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $1,170.71 $27,534,329.92
IIA10 9292277F7 $25,000,000.00 $16,858,126.56 8.9374999894% 8.9374999894% $125,557.92 $337,660.78 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $463,218.70 $16,520,465.78
IIA11 9292277G5 $10,000,000.00 $6,743,250.63 4.0000000000% 4.0000000000% $22,477.50 $135,064.31 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $157,541.82 $6,608,186.32
IX 9292277H3 $2,195,579.00 $1,566,451.56 4.5000000000% 4.5000000000% $5,874.19 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $5,874.19 $1,527,931.61
IIX 9292277J9 $19,037,622.00 $11,316,209.52 5.0000000000% 5.0000000000% $47,150.87 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $47,150.87 $10,982,064.41
IP 9292277K6 $15,160.00 $11,092.78 0.0000000000% 0.0000000000% $0.00 $81.01 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $81.01 $11,011.77
IIP 9292277L4 $1,197,485.00 $1,044,958.66 0.0000000000% 0.0000000000% $0.00 $22,445.27 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $22,445.27 $1,022,513.39
CB1 9292277M2 $4,007,000.00 $3,744,074.24 4.9610574498% 4.9610574498% $15,478.81 $16,312.53 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $31,791.34 $3,727,761.71
CB2 9292277N0 $1,001,000.00 $935,317.79 4.9610574498% 4.9610574498% $3,866.80 $4,075.08 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $7,941.88 $931,242.71
CB3 9292277P5 $1,335,000.00 $1,247,401.82 4.9610574498% 4.9610574498% $5,157.03 $5,434.80 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $10,591.82 $1,241,967.02
CB4 9292276S0 $667,000.00 $623,233.70 4.9610574498% 4.9610574498% $2,576.58 $2,715.36 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $5,291.94 $620,518.34
CB5 9292276T8 $333,000.00 $311,149.68 4.9610574498% 4.9610574498% $1,286.36 $1,355.65 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $2,642.01 $309,794.03
CB6 9292276U5 $674,798.72 $630,520.66 4.9610574498% 4.9610574498% $2,606.71 $2,747.11 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $5,353.82 $627,773.55
R 9292277Q3 $100.00 $0.00 0.0000000000% 0.0000000000% $1.37 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $1.37 $0.00
R_SYN XXXXXXXXX $0.00 $0.00 0.0000000000% 0.0000000000% $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00
Total   $668,109,543.72 $461,997,097.27     $1,955,081.55 $9,045,465.75 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $11,000,547.30 $452,951,631.52



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
 
Class Orig Face Beg Bal Prin Loss Prin Reimbursed Subsequent Recoveries Deferred Interest Total Prin End Cert Pct End Cert Bal
IA $51,519,000.00 $43,891,277.74 $0.00 $0.00 $0.00 $0.00 $787,032.82 0.8366669563 $43,104,244.92
IIA1 $99,000,000.00 $66,758,181.23 $0.00 $0.00 $0.00 $0.00 $1,337,136.70 0.6608186316 $65,421,044.53
IIA2 $70,000,000.00 $47,202,754.41 $0.00 $0.00 $0.00 $0.00 $945,450.19 0.6608186317 $46,257,304.22
IIA3 $273,871,000.00 $184,678,079.31 $0.00 $0.00 $0.00 $0.00 $3,699,019.85 0.6608186316 $180,979,059.46
IIA4 $37,822,000.00 $25,504,322.54 $0.00 $0.00 $0.00 $0.00 $510,840.25 0.6608186317 $24,993,482.29
IIA5 $37,822,000.00 $25,504,322.54 $0.00 $0.00 $0.00 $0.00 $0.00 0.6608186317 $24,993,482.29
IIA6 $50,000,000.00 $33,716,253.13 $0.00 $0.00 $0.00 $0.00 $675,321.57 0.6608186312 $33,040,931.56
IIA7 $15,600,000.00 $10,519,470.98 $0.00 $0.00 $0.00 $0.00 $0.00 0.6608186314 $10,308,770.65
IIA8 $41,667,000.00 $28,097,102.39 $0.00 $0.00 $0.00 $0.00 $562,772.47 0.6608186315 $27,534,329.92
IIA9 $41,667,000.00 $28,097,102.39 $0.00 $0.00 $0.00 $0.00 $0.00 0.6608186315 $27,534,329.92
IIA10 $25,000,000.00 $16,858,126.56 $0.00 $0.00 $0.00 $0.00 $337,660.78 0.6608186312 $16,520,465.78
IIA11 $10,000,000.00 $6,743,250.63 $0.00 $0.00 $0.00 $0.00 $135,064.31 0.6608186320 $6,608,186.32
IX $2,195,579.00 $1,566,451.56 $0.00 $0.00 $0.00 $0.00 $0.00 0.6959128367 $1,527,931.61
IIX $19,037,622.00 $11,316,209.52 $0.00 $0.00 $0.00 $0.00 $0.00 0.5768611442 $10,982,064.41
IP $15,160.00 $11,092.78 $0.00 $0.00 $0.00 $0.00 $81.01 0.7263700528 $11,011.77
IIP $1,197,485.00 $1,044,958.66 $0.00 $0.00 $0.00 $0.00 $22,445.27 0.8538840904 $1,022,513.39
CB1 $4,007,000.00 $3,744,074.24 $0.00 $0.00 $0.00 $0.00 $16,312.53 0.9303123808 $3,727,761.71
CB2 $1,001,000.00 $935,317.79 $0.00 $0.00 $0.00 $0.00 $4,075.08 0.9303123976 $931,242.71
CB3 $1,335,000.00 $1,247,401.82 $0.00 $0.00 $0.00 $0.00 $5,434.80 0.9303123745 $1,241,967.02
CB4 $667,000.00 $623,233.70 $0.00 $0.00 $0.00 $0.00 $2,715.36 0.9303123538 $620,518.34
CB5 $333,000.00 $311,149.68 $0.00 $0.00 $0.00 $0.00 $1,355.65 0.9303124024 $309,794.03
CB6 $674,798.72 $630,520.66 $0.00 $0.00 $0.00 $0.00 $2,747.11 0.9303123011 $627,773.55
R $100.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 0.0000000000 $0.00
R_SYN $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 0.0000000000 $0.00
Total $668,109,543.72 $461,997,097.27 $0.00 $0.00 $0.00 $0.00 $9,045,465.75 0.6779601276 $452,951,631.52



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
PER $1000 DENOMINATION
Class Orig Face Beg Bal Prin Loss Prin Reimbursed Subsequent Recoveries Deferred Interest Total Prin End Cert Pct End Cert Bal
IA $51,519,000.00 851.94351094 0.00000000 0.00000000 0.00000000 0.00000000 15.27655467 0.8366669563 836.66695627
IIA1 $99,000,000.00 674.32506293 0.00000000 0.00000000 0.00000000 0.00000000 13.50643131 0.6608186316 660.81863162
IIA2 $70,000,000.00 674.32506300 0.00000000 0.00000000 0.00000000 0.00000000 13.50643129 0.6608186317 660.81863171
IIA3 $273,871,000.00 674.32506293 0.00000000 0.00000000 0.00000000 0.00000000 13.50643131 0.6608186316 660.81863162
IIA4 $37,822,000.00 674.32506319 0.00000000 0.00000000 0.00000000 0.00000000 13.50643144 0.6608186317 660.81863175
IIA5 $37,822,000.00 674.32506319 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.6608186317 660.81863175
IIA6 $50,000,000.00 674.32506260 0.00000000 0.00000000 0.00000000 0.00000000 13.50643140 0.6608186312 660.81863120
IIA7 $15,600,000.00 674.32506282 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.6608186314 660.81863141
IIA8 $41,667,000.00 674.32506276 0.00000000 0.00000000 0.00000000 0.00000000 13.50643123 0.6608186315 660.81863153
IIA9 $41,667,000.00 674.32506276 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.6608186315 660.81863153
IIA10 $25,000,000.00 674.32506240 0.00000000 0.00000000 0.00000000 0.00000000 13.50643120 0.6608186312 660.81863120
IIA11 $10,000,000.00 674.32506300 0.00000000 0.00000000 0.00000000 0.00000000 13.50643100 0.6608186320 660.81863200
IX $2,195,579.00 713.45716096 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.6959128367 695.91283666
IIX $19,037,622.00 594.41297448 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.5768611442 576.86114421
IP $15,160.00 731.71372032 0.00000000 0.00000000 0.00000000 0.00000000 5.34366755 0.7263700528 726.37005277
IIP $1,197,485.00 872.62776569 0.00000000 0.00000000 0.00000000 0.00000000 18.74367529 0.8538840904 853.88409041
CB1 $4,007,000.00 934.38338907 0.00000000 0.00000000 0.00000000 0.00000000 4.07100824 0.9303123808 930.31238083
CB2 $1,001,000.00 934.38340659 0.00000000 0.00000000 0.00000000 0.00000000 4.07100899 0.9303123976 930.31239760
CB3 $1,335,000.00 934.38338577 0.00000000 0.00000000 0.00000000 0.00000000 4.07101124 0.9303123745 930.31237453
CB4 $667,000.00 934.38335832 0.00000000 0.00000000 0.00000000 0.00000000 4.07100450 0.9303123538 930.31235382
CB5 $333,000.00 934.38342342 0.00000000 0.00000000 0.00000000 0.00000000 4.07102102 0.9303124024 930.31240240
CB6 $674,798.72 934.38330766 0.00000000 0.00000000 0.00000000 0.00000000 4.07100654 0.9303123011 930.31230113
R $100.00 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.0000000000 0.00000000
R_SYN $0.00 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.0000000000 0.00000000



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
 
Class Orig Face Int Rate Accrued Int Rate Paid Beg Cert Prin/Not Bal Current Int Accrued Int Shortfall PPIS Uncompensated Int Shortfall Unscheduled Int Int Reimbursed Total Int Dist
IA $51,519,000.00 4.5000000000% 4.5000000000% $43,891,277.74 $164,592.29 $0.00 $0.00 $0.00 $0.00 $0.00 $164,592.29
IIA1 $99,000,000.00 5.0000000000% 5.0000000000% $66,758,181.23 $278,159.09 $0.00 $0.00 $0.00 $0.00 $0.00 $278,159.09
IIA2 $70,000,000.00 4.5000000000% 4.5000000000% $47,202,754.41 $177,010.33 $0.00 $0.00 $0.00 $0.00 $0.00 $177,010.33
IIA3 $273,871,000.00 4.7500000000% 4.7500000000% $184,678,079.31 $731,017.40 $0.00 $0.00 $0.00 $0.00 $0.00 $731,017.40
IIA4 $37,822,000.00 2.5875000000% 2.5875000000% $25,504,322.54 $54,993.70 $0.00 $0.00 $0.00 $0.00 $0.00 $54,993.70
IIA5 $37,822,000.00 5.4125000000% 5.4125000000% $25,504,322.54 $115,035.12 $0.00 $0.00 $0.00 $0.00 $0.00 $115,035.12
IIA6 $50,000,000.00 3.4400000000% 3.4400000000% $33,716,253.13 $96,653.26 $0.00 $0.00 $0.00 $0.00 $0.00 $96,653.26
IIA7 $15,600,000.00 5.0000000000% 5.0000000000% $10,519,470.98 $43,831.13 $0.00 $0.00 $0.00 $0.00 $0.00 $43,831.13
IIA8 $41,667,000.00 2.5875000000% 2.5875000000% $28,097,102.39 $60,584.38 $0.00 $0.00 $0.00 $0.00 $0.00 $60,584.38
IIA9 $41,667,000.00 0.0500000000% 0.0500000000% $28,097,102.39 $1,170.71 $0.00 $0.00 $0.00 $0.00 $0.00 $1,170.71
IIA10 $25,000,000.00 8.9374999894% 8.9374999894% $16,858,126.56 $125,557.92 $0.00 $0.00 $0.00 $0.00 $0.00 $125,557.92
IIA11 $10,000,000.00 4.0000000000% 4.0000000000% $6,743,250.63 $22,477.50 $0.00 $0.00 $0.00 $0.00 $0.00 $22,477.50
IX $2,195,579.00 4.5000000000% 4.5000000000% $1,566,451.56 $5,874.19 $0.00 $0.00 $0.00 $0.00 $0.00 $5,874.19
IIX $19,037,622.00 5.0000000000% 5.0000000000% $11,316,209.52 $47,150.87 $0.00 $0.00 $0.00 $0.00 $0.00 $47,150.87
IP $15,160.00 0.0000000000% 0.0000000000% $11,092.78 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00
IIP $1,197,485.00 0.0000000000% 0.0000000000% $1,044,958.66 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00
CB1 $4,007,000.00 4.9610574498% 4.9610574498% $3,744,074.24 $15,478.81 $0.00 $0.00 $0.00 $0.00 $0.00 $15,478.81
CB2 $1,001,000.00 4.9610574498% 4.9610574498% $935,317.79 $3,866.80 $0.00 $0.00 $0.00 $0.00 $0.00 $3,866.80
CB3 $1,335,000.00 4.9610574498% 4.9610574498% $1,247,401.82 $5,157.03 $0.00 $0.00 $0.00 $0.00 $0.00 $5,157.03
CB4 $667,000.00 4.9610574498% 4.9610574498% $623,233.70 $2,576.58 $0.00 $0.00 $0.00 $0.00 $0.00 $2,576.58
CB5 $333,000.00 4.9610574498% 4.9610574498% $311,149.68 $1,286.36 $0.00 $0.00 $0.00 $0.00 $0.00 $1,286.36
CB6 $674,798.72 4.9610574498% 4.9610574498% $630,520.66 $2,606.71 $0.00 $0.00 $0.00 $0.00 $0.00 $2,606.71
R $100.00 0.0000000000% 0.0000000000% $0.00 $1.37 $0.00 $0.00 $0.00 $0.00 $0.00 $1.37
R_SYN $0.00 0.0000000000% 0.0000000000% $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00 $0.00
Total $668,109,543.72     $461,997,097.27 $1,955,081.55 $0.00 $0.00 $0.00 $0.00 $0.00 $1,955,081.55



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
PER $1000 DENOMINATION
Class Orig Face Int Rate Accrued Int Rate Paid Beg Cert Prin/Not Bal Curent Int Accrued Int Shortfall PPIS Uncompensated Int Shortfall Unscheduled Int Int Reimbursed Total Int Dist
IA $51,519,000.00 4.5000000000% 4.5000000000% 851.94351094 3.19478814 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.19478814
IIA1 $99,000,000.00 5.0000000000% 5.0000000000% 674.32506293 2.80968778 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.80968778
IIA2 $70,000,000.00 4.5000000000% 4.5000000000% 674.32506300 2.52871900 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.52871900
IIA3 $273,871,000.00 4.7500000000% 4.7500000000% 674.32506293 2.66920338 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.66920338
IIA4 $37,822,000.00 2.5875000000% 2.5875000000% 674.32506319 1.45401354 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 1.45401354
IIA5 $37,822,000.00 5.4125000000% 5.4125000000% 674.32506319 3.04148697 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.04148697
IIA6 $50,000,000.00 3.4400000000% 3.4400000000% 674.32506260 1.93306520 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 1.93306520
IIA7 $15,600,000.00 5.0000000000% 5.0000000000% 674.32506282 2.80968782 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.80968782
IIA8 $41,667,000.00 2.5875000000% 2.5875000000% 674.32506276 1.45401349 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 1.45401349
IIA9 $41,667,000.00 0.0500000000% 0.0500000000% 674.32506276 0.02809682 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.02809682
IIA10 $25,000,000.00 8.9374999894% 8.9374999894% 674.32506240 5.02231680 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 5.02231680
IIA11 $10,000,000.00 4.0000000000% 4.0000000000% 674.32506300 2.24775000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.24775000
IX $2,195,579.00 4.5000000000% 4.5000000000% 713.45716096 2.67546283 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.67546283
IIX $19,037,622.00 5.0000000000% 5.0000000000% 594.41297448 2.47672057 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2.47672057
IP $15,160.00 0.0000000000% 0.0000000000% 731.71372032 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000
IIP $1,197,485.00 0.0000000000% 0.0000000000% 872.62776569 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000
CB1 $4,007,000.00 4.9610574498% 4.9610574498% 934.38338907 3.86294235 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.86294235
CB2 $1,001,000.00 4.9610574498% 4.9610574498% 934.38340659 3.86293706 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.86293706
CB3 $1,335,000.00 4.9610574498% 4.9610574498% 934.38338577 3.86294382 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.86294382
CB4 $667,000.00 4.9610574498% 4.9610574498% 934.38335832 3.86293853 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.86293853
CB5 $333,000.00 4.9610574498% 4.9610574498% 934.38342342 3.86294294 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.86294294
CB6 $674,798.72 4.9610574498% 4.9610574498% 934.38330766 3.86294449 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 3.86294449
R $100.00 0.0000000000% 0.0000000000% 0.00000000 13.70000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 13.70000000
R_SYN $0.00 0.0000000000% 0.0000000000% 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
SERIES: WAMU 03S6
WEIGHTED AVERAGE PC RATE: 4.65733%
WEIGHTED AVERAGE MATURITY: 158.30477
WEIGHTED AVERAGE LOAN AGE: 18.91235
POOL NUMBER: 2136
ISSUE DATE: 06/24/2003
CERTIFICATE BALANCE AT ISSUE: $52,160,134.72
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END: 99   $44,485,862.17
PRINCIPAL POOL COLLECTION(S):      
Scheduled Principal Collection Due Current Month   $199,903.02  
Unscheduled Principal Collection/Reversals   $29,254.59  
Liquidations-in-full 1 $560,577.89  
Subsequent Recoveries   $0.00  
Net principal Distributed   $789,735.50 -$789,735.50
 
CAPITAL LOSS (PRINCIPAL WRITTEN OFF):     $0.00
 
BALANCE CURRENT FISCAL MONTH-END: 98   $43,696,126.67
 
SCHEDULED INTEREST AT MORTGAGE RATE:   $181,922.43  
 
UNSCHEDULED INTEREST AT MORTGAGE RATE:      
Unscheduled Interest Collection/Reversals   $0.00  
Interest Uncollected on Liquidation   $0.00  
Interest Uncollected on Non-Earning Assets   $0.00  
Interest Uncollected on Prepayment   $0.00  
Uncompensated Uncollected Interest   $0.00  
Net Unscheduled Interest Distributed   $0.00  
 
OTHER:      
Loan Conversion Fees   $0.00  
Expense Reimbursements   $0.00  
Gain on Liquidations   $0.00  
Hazard Insurance Premium Refunds   $0.00  
Recoveries Carried Forward   $0.00  
Net Other Distributions   $0.00  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:   $9,267.87  
 
UNSCHEDULED SERVICING FEES:      
Unscheduled Service Fee Collections/Reversals   $0.00  
Servicing Fees Uncollected on Liquidation   $0.00  
Servicing Fees Uncollected/Non-Earning Assets   $0.00  
Net Unscheduled Service Fees Distributed   $0.00  
 
MISCELLANEOUS EXPENSES:   $0.00  
 
NET FUNDS DISTRIBUTED:   $962,390.06  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
SERIES: WAMU 03S6
WEIGHTED AVERAGE PC RATE: 5.12301%
WEIGHTED AVERAGE MATURITY: 158.31771
WEIGHTED AVERAGE LOAN AGE: 18.92135
POOL NUMBER: 2137
ISSUE DATE: 06/24/2003
CERTIFICATE BALANCE AT ISSUE: $615,949,409.00
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END: 920   $417,511,235.16
PRINCIPAL POOL COLLECTION(S):      
Scheduled Principal Collection Due Current Month   $1,814,364.87  
Unscheduled Principal Collection/Reversals   $1,639,584.15  
Liquidations-in-full 11 $4,801,781.23  
Subsequent Recoveries   $0.00  
Net principal Distributed   $8,255,730.25 -$8,255,730.25
 
CAPITAL LOSS (PRINCIPAL WRITTEN OFF):     $0.00
 
BALANCE CURRENT FISCAL MONTH-END: 909   $409,255,504.91
 
SCHEDULED INTEREST AT MORTGAGE RATE:   $1,869,408.55  
 
UNSCHEDULED INTEREST AT MORTGAGE RATE:      
Unscheduled Interest Collection/Reversals   $0.00  
Interest Uncollected on Liquidation   $0.00  
Interest Uncollected on Non-Earning Assets   $0.00  
Interest Uncollected on Prepayment   $0.00  
Uncompensated Uncollected Interest   $0.00  
Net Unscheduled Interest Distributed   $0.00  
 
OTHER:      
Loan Conversion Fees   $0.00  
Expense Reimbursements   $0.00  
Gain on Liquidations   $0.00  
Hazard Insurance Premium Refunds   $0.00  
Recoveries Carried Forward   $0.00  
Net Other Distributions   $0.00  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:   $86,981.56  
 
UNSCHEDULED SERVICING FEES:      
Unscheduled Service Fee Collections/Reversals   $0.00  
Servicing Fees Uncollected on Liquidation   $0.00  
Servicing Fees Uncollected/Non-Earning Assets   $0.00  
Net Unscheduled Service Fees Distributed   $0.00  
 
MISCELLANEOUS EXPENSES:   $0.00  
 
NET FUNDS DISTRIBUTED:   $10,038,157.24  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
SERIES: WAMU 03S6
WEIGHTED AVERAGE PC RATE: 5.07817%
WEIGHTED AVERAGE MATURITY: 158.31647
WEIGHTED AVERAGE LOAN AGE: 18.92048
POOL NUMBER: Group 1
ISSUE DATE: 06/24/2003
CERTIFICATE BALANCE AT ISSUE: $668,109,543.72
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END: 1019   $461,997,097.33
PRINCIPAL POOL COLLECTION(S):      
Scheduled Principal Collection Due Current Month   $2,014,267.89  
Unscheduled Principal Collection/Reversals   $1,668,838.74  
Liquidations-in-full 12 $5,362,359.12  
Subsequent Recoveries   $0.00  
Net principal Distributed   $9,045,465.75 -$9,045,465.75
 
CAPITAL LOSS (PRINCIPAL WRITTEN OFF):     $0.00
 
BALANCE CURRENT FISCAL MONTH-END: 1007   $452,951,631.58
 
SCHEDULED INTEREST AT MORTGAGE RATE:   $2,051,330.98  
 
UNSCHEDULED INTEREST AT MORTGAGE RATE:      
Unscheduled Interest Collection/Reversals   $0.00  
Interest Uncollected on Liquidation   $0.00  
Interest Uncollected on Non-Earning Assets   $0.00  
Interest Uncollected on Prepayment   $0.00  
Uncompensated Uncollected Interest   $0.00  
Net Unscheduled Interest Distributed   $0.00  
 
OTHER:      
Loan Conversion Fees   $0.00  
Expense Reimbursements   $0.00  
Gain on Liquidations   $0.00  
Hazard Insurance Premium Refunds   $0.00  
Recoveries Carried Forward   $0.00  
Net Other Distributions   $0.00  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:   $96,249.43  
 
UNSCHEDULED SERVICING FEES:      
Unscheduled Service Fee Collections/Reversals   $0.00  
Servicing Fees Uncollected on Liquidation   $0.00  
Servicing Fees Uncollected/Non-Earning Assets   $0.00  
Net Unscheduled Service Fees Distributed   $0.00  
 
MISCELLANEOUS EXPENSES:   $0.00  
 
NET FUNDS DISTRIBUTED:   $11,000,547.30  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
SERIES: WAMU 03S6
WEIGHTED AVERAGE PC RATE: 5.07817%
WEIGHTED AVERAGE MATURITY: 158.31647
WEIGHTED AVERAGE LOAN AGE: 18.92048
POOL NUMBER: ALL
ISSUE DATE: 06/24/2003
CERTIFICATE BALANCE AT ISSUE: $668,109,543.72
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END: 1019   $461,997,097.33
PRINCIPAL POOL COLLECTION(S):      
Scheduled Principal Collection Due Current Month   $2,014,267.89  
Unscheduled Principal Collection/Reversals   $1,668,838.74  
Liquidations-in-full 12 $5,362,359.12  
Subsequent Recoveries   $0.00  
Net principal Distributed   $9,045,465.75 -$9,045,465.75
 
CAPITAL LOSS (PRINCIPAL WRITTEN OFF):     $0.00
 
BALANCE CURRENT FISCAL MONTH-END: 1007   $452,951,631.58
 
SCHEDULED INTEREST AT MORTGAGE RATE:   $2,051,330.98  
 
UNSCHEDULED INTEREST AT MORTGAGE RATE:      
Unscheduled Interest Collection/Reversals   $0.00  
Interest Uncollected on Liquidation   $0.00  
Interest Uncollected on Non-Earning Assets   $0.00  
Interest Uncollected on Prepayment   $0.00  
Uncompensated Uncollected Interest   $0.00  
Net Unscheduled Interest Distributed   $0.00  
 
OTHER:      
Loan Conversion Fees   $0.00  
Expense Reimbursements   $0.00  
Gain on Liquidations   $0.00  
Hazard Insurance Premium Refunds   $0.00  
Recoveries Carried Forward   $0.00  
Net Other Distributions   $0.00  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
12/2004 DISTRIBUTION REPORT
  TOTAL NUMBER
OF MORTAGES 		CERTIFICATE ACCOUNT
ACTIVITY (@ PCRATE) 		CERTIFICATE BALANCE
OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:   $96,249.43  
 
UNSCHEDULED SERVICING FEES:      
Unscheduled Service Fee Collections/Reversals   $0.00  
Servicing Fees Uncollected on Liquidation   $0.00  
Servicing Fees Uncollected/Non-Earning Assets   $0.00  
Net Unscheduled Service Fees Distributed   $0.00  
 
MISCELLANEOUS EXPENSES:   $0.00  
 
NET FUNDS DISTRIBUTED:   $11,000,547.30  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
 
Distribution by Group
Pool ID Principal Interest Total  
Pool - 2136 $789,735.50 $172,654.56 $962,390.06  
Pool - 2137 $8,255,730.25 $1,782,426.99 $10,038,157.24  
Group 1 $9,045,465.75 $1,955,081.55 $11,000,547.30  
Aggregate $9,045,465.75 $1,955,081.55 $11,000,547.30  
 
Number of Loans and Aggregate Principal Balance By Group
Pool ID Beg Bal Beg Count Paid Off / Liq Count Rem Count Sched Prin End Bal Sched Prin Prin PrePay / Liq Unsched Prin / Rev Total Prin
Pool - 2136 $44,485,862.17 99 1 98 $43,696,126.67 $199,903.02 $560,577.89 $29,254.59 $789,735.50
Pool - 2137 $417,511,235.16 920 11 909 $409,255,504.91 $1,814,364.87 $4,801,781.23 $1,639,584.15 $8,255,730.25
Group 1 $461,997,097.33 1019 12 1007 $452,951,631.58 $2,014,267.89 $5,362,359.12 $1,668,838.74 $9,045,465.75
Aggregate $461,997,097.33 1019 12 1007 $452,951,631.58 $2,014,267.89 $5,362,359.12 $1,668,838.74 $9,045,465.75
 
Delinquency Information by Group
Pool ID 1 Month Count Sched End Balance 2 Months Count Sched End Balance 3 Months Count Sched End Balance 4 Months Count Sched End Balance  
Pool - 2136 1 $405,399.07 0 $0.00 0 $0.00 0 $0.00  
Pool - 2137 3 $1,489,954.18 0 $0.00 0 $0.00 0 $0.00  
Group 1 4 $1,895,353.25 0 $0.00 0 $0.00 0 $0.00  
Aggregate 4 $1,895,353.25 0 $0.00 0 $0.00 0 $0.00  
 
Foreclosure and REO Information by Group
Pool ID Foreclosure Count Sched End Balance REO Count Sched End Balance
Pool - 2136 0 $0.00 0 $0.00
Pool - 2137 0 $0.00 0 $0.00
Group 1 0 $0.00 0 $0.00
Aggregate 0 $0.00 0 $0.00
 
Aggregate Loss Amounts by Group
Pool ID Count Loss Amount  
Pool - 2136 0 $0.00  
Pool - 2137 0 $0.00  
Group 1 0 $0.00  
Aggregate 0 $0.00  



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
 
INSURANCE RESERVES - Group 1
Insurance Type Original Balance Claims In Progress Claims Paid Coverage Adjustments Coverage Remaining
MPI $0.00 $0.00 $0.00 $0.00 $0.00
Special Hazard $6,681,095.00 $0.00 $0.00 $0.00 $6,681,095.00
Bankruptcy Bond
Single-Units $100,000.00 $0.00 $0.00 $0.00 $100,000.00
Multi-Units $0.00 $0.00 $0.00 $0.00 $0.00
Mortgage Repurchase $6,681,095.00 $0.00 $0.00 $0.00 $6,681,095.00
 
INSURANCE RESERVES - Aggregate
Insurance Type Original Balance Claims In Progress Claims Paid Coverage Adjustments Coverage Remaining
MPI $0.00 $0.00 $0.00 $0.00 $0.00
Special Hazard $6,681,095.00 $0.00 $0.00 $0.00 $6,681,095.00
Bankruptcy Bond
Single-Units $100,000.00 $0.00 $0.00 $0.00 $100,000.00
Multi-Units $0.00 $0.00 $0.00 $0.00 $0.00
Mortgage Repurchase $6,681,095.00 $0.00 $0.00 $0.00 $6,681,095.00



WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: WAMU.03S6
Distribution Date: 12/27/2004
 
The Group C-B Certificates provide, to the limited extent described in the Prospectus Supplement, credit support, as well as special hazard, bankruptcy, and fraud coverage to certain Group I,and II Certificates. The "Prospectus Supplement" is that certain Prospectus Supplement, dated June 20,2003 to that certain Prospectus Supplement, dated May 20, 2003, to which certain Group I,and II Certificates were offered. The Special Hazard, Bankruptcy, and Fraud coverage (collectively, "Credit Enhancements") provided by the C-B certificates provide coverage to the Group I,and II Loans, subject to the conditions and limitations to payment specified thereunder.
 
The Class Principal Balances of each Class of the Class CB1,CB2,CB3,CB4,CB5,CB6 Certificatesimmediately after the principal and interest distribution on 200412 are as follows:
Class Class Principal Balance
CB1 $3,727,761.71
CB2 $931,242.71
CB3 $1,241,967.02
CB4 $620,518.34
CB5 $309,794.03
CB6 $627,773.55
Total $7,459,057.36
Capitalized items used but not defined herein have the meanings ascribed to them in the Prospectus Supplement.
The amount of the special hazard coverage, bankruptcy coverage, and fraud coverage, as of the above referenced distribution date, is $6,681,095.00, $100,000.00, $6,681,095.00 respectively, and such coverages are referred to in the table above under the column "Insurance Type" as "special hazard," "bankruptcy bond," and "mortgage repurchase," respectively. However, no policy of insurance exists for any such coverage, notwithstanding the reference to "insurance."


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