WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Class	Cusip	Orig Prin Bal	Begin Prin Bal	Int Rate Accrued	Int Rate Paid	Int Dist	Prin Dist	Int Shortfall	Prin Loss	Deferred Interest	Int Reimbursed	Unscheduled Int	Prin Reimbursed	Total Dist	Ending Class Bal
A1	000780BW5	$102,599,000.00	$102,599,000.00	3.6250000000%	3.6250000000%	$309,934.48	$494,588.91	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$804,523.39	$102,104,411.09
A2	000780BX3	$40,270,840.00	$40,270,840.00	5.5000000000%	5.5000000000%	$184,574.68	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$184,574.68	$40,102,231.05
A3	000780BY1	$23,554,000.00	$23,554,000.00	5.5000000000%	5.5000000000%	$107,955.83	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$107,955.83	$23,554,000.00
A4	000780BZ8	$34,804,000.00	$34,804,000.00	5.5000000000%	5.5000000000%	$159,518.33	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$159,518.33	$34,804,000.00
A5	000780CA2	$38,822,000.00	$38,822,000.00	4.7500000000%	4.7500000000%	$153,670.42	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$153,670.42	$38,822,000.00
A6	000780CB0	$31,239,000.00	$31,239,000.00	5.5000000000%	5.5000000000%	$143,178.75	$1,897,013.97	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$2,040,192.72	$29,341,986.03
A7	000780CC8	$3,970,000.00	$3,970,000.00	5.5000000000%	5.5000000000%	$18,195.83	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$18,195.83	$3,970,000.00
A8	000780CD6	$5,878,000.00	$5,878,000.00	5.5000000000%	5.5000000000%	$26,940.83	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$26,940.83	$5,878,000.00
A9	000780CE4	$16,749,000.00	$16,749,000.00	5.5000000000%	5.5000000000%	$76,766.25	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$76,766.25	$16,749,000.00
A10	000780CF1	$8,500,000.00	$8,500,000.00	5.5000000000%	5.5000000000%	$38,958.33	$516,169.49	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$555,127.82	$7,983,830.51
A11	000780CG9	$4,250,000.00	$4,250,000.00	5.5000000000%	5.5000000000%	$19,479.17	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$19,479.17	$4,250,000.00
A12	000780CH7	$3,250,000.00	$3,250,000.00	5.5000000000%	5.5000000000%	$14,895.83	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$14,895.83	$3,250,000.00
A13	000780CJ3	$4,000,000.00	$4,000,000.00	5.5000000000%	5.5000000000%	$18,333.33	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$18,333.33	$4,000,000.00
A14	000780CK0	$1,953,000.00	$1,953,000.00	5.5000000000%	5.5000000000%	$8,951.25	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$8,951.25	$1,953,000.00
A15	000780CL8	$56,373,000.00	$56,373,000.00	4.5000000000%	4.5000000000%	$211,398.75	$935,243.69	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$1,146,642.44	$55,437,756.31
A16	000780CM6	$1,613,000.00	$1,613,000.00	5.5000000000%	5.5000000000%	$7,392.92	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$7,392.92	$1,613,000.00
A17	000780CN4	$18,790,000.00	$18,790,000.00	6.5300000000%	6.5300000000%	$102,248.92	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$102,248.92	$18,478,268.69
A18	000780CP9	$15,500,000.00	$15,500,000.00	2.6700000000%	2.6700000000%	$34,487.50	$941,250.25	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$975,737.75	$14,558,749.75
A19	000780CQ7	$4,000,000.00	$4,000,000.00	13.2825000000%	13.2825000000%	$44,275.00	$242,903.29	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$287,178.29	$3,757,096.71
A20	000780CR5	$4,500,000.00	$4,500,000.00	8.3300000000%	8.3300000000%	$31,237.50	$273,266.20	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$304,503.70	$4,226,733.80
A21	000780CS3	$18,790,000.00	$18,790,000.00	1.9700000000%	1.9700000000%	$30,846.92	$311,731.31	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$342,578.22	$18,478,268.69
A22	000780CT1	$3,867,439.00	$3,867,439.00	5.5000000000%	5.5000000000%	$17,725.76	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$17,725.76	$3,867,439.00
AP	000780CU8	$557,502.35	$557,502.35	0.0000000000%	0.0000000000%	$0.00	$655.35	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$655.35	$556,847.00
AX	000780CV6	$1,596,038.00	$1,596,038.00	5.5000000000%	5.5000000000%	$7,315.17	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$7,315.17	$1,478,675.41
M	000780CW4	$5,742,822.00	$5,742,822.00	5.5000000000%	5.5000000000%	$26,321.27	$5,636.14	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$31,957.41	$5,737,185.86
B1	000780CX2	$2,574,368.00	$2,574,368.00	5.5000000000%	5.5000000000%	$11,799.19	$2,526.55	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$14,325.73	$2,571,841.45
B2	000780CY0	$990,142.00	$990,142.00	5.5000000000%	5.5000000000%	$4,538.15	$971.75	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$5,509.90	$989,170.25
B3	000780DA1	$792,113.00	$792,113.00	5.5000000000%	5.5000000000%	$3,630.52	$777.40	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$4,407.92	$791,335.60
B4	000780DB9	$594,085.00	$594,085.00	5.5000000000%	5.5000000000%	$2,722.89	$583.05	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,305.94	$593,501.95
B5	000780DC7	$594,084.89	$594,084.89	5.5000000000%	5.5000000000%	$2,722.89	$583.05	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$3,305.94	$593,501.84
R	000780CZ7	$100.00	$100.00	5.5000000000%	35.6760509779%	$2.97	$100.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$102.97	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Class	Cusip	Orig Prin Bal	Begin Prin Bal	Int Rate Accrued	Int Rate Paid	Int Dist	Prin Dist	Int Shortfall	Prin Loss	Deferred Interest	Int Reimbursed	Unscheduled Int	Prin Reimbursed	Total Dist	Ending Class Bal
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
A10_ROUND	XXXXXXXXX	$8,500,000.00	$8,500,000.00	5.5000000000%	5.5000000000%	$38,958.33	$517,000.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$555,958.33	$7,983,000.00
A11_ROUND	XXXXXXXXX	$4,250,000.00	$4,250,000.00	5.5000000000%	5.5000000000%	$19,479.17	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$19,479.17	$4,250,000.00
A12_ROUND	XXXXXXXXX	$3,250,000.00	$3,250,000.00	5.5000000000%	5.5000000000%	$14,895.83	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$14,895.83	$3,250,000.00
A13_ROUND	XXXXXXXXX	$4,000,000.00	$4,000,000.00	5.5000000000%	5.5000000000%	$18,333.33	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$18,333.33	$4,000,000.00
Total		$396,056,656.24	$396,056,656.24			$1,820,019.64	$5,624,000.40	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00	$7,444,020.04	$390,432,655.84

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Class	Orig Face	Beg Bal	Prin Loss	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
A1	$102,599,000.00	$102,599,000.00	$0.00	$0.00	$494,588.91	0.9951793983	$102,104,411.09
A2	$40,270,840.00	$40,270,840.00	$0.00	$0.00	$0.00	0.9958131256	$40,102,231.05
A3	$23,554,000.00	$23,554,000.00	$0.00	$0.00	$0.00	1.0000000000	$23,554,000.00
A4	$34,804,000.00	$34,804,000.00	$0.00	$0.00	$0.00	1.0000000000	$34,804,000.00
A5	$38,822,000.00	$38,822,000.00	$0.00	$0.00	$0.00	1.0000000000	$38,822,000.00
A6	$31,239,000.00	$31,239,000.00	$0.00	$0.00	$1,897,013.97	0.9392741775	$29,341,986.03
A7	$3,970,000.00	$3,970,000.00	$0.00	$0.00	$0.00	1.0000000000	$3,970,000.00
A8	$5,878,000.00	$5,878,000.00	$0.00	$0.00	$0.00	1.0000000000	$5,878,000.00
A9	$16,749,000.00	$16,749,000.00	$0.00	$0.00	$0.00	1.0000000000	$16,749,000.00
A10	$8,500,000.00	$8,500,000.00	$0.00	$0.00	$516,169.49	0.9392741776	$7,983,830.51
A11	$4,250,000.00	$4,250,000.00	$0.00	$0.00	$0.00	1.0000000000	$4,250,000.00
A12	$3,250,000.00	$3,250,000.00	$0.00	$0.00	$0.00	1.0000000000	$3,250,000.00
A13	$4,000,000.00	$4,000,000.00	$0.00	$0.00	$0.00	1.0000000000	$4,000,000.00
A14	$1,953,000.00	$1,953,000.00	$0.00	$0.00	$0.00	1.0000000000	$1,953,000.00
A15	$56,373,000.00	$56,373,000.00	$0.00	$0.00	$935,243.69	0.9834097229	$55,437,756.31
A16	$1,613,000.00	$1,613,000.00	$0.00	$0.00	$0.00	1.0000000000	$1,613,000.00
A17	$18,790,000.00	$18,790,000.00	$0.00	$0.00	$0.00	0.9834097227	$18,478,268.69
A18	$15,500,000.00	$15,500,000.00	$0.00	$0.00	$941,250.25	0.9392741774	$14,558,749.75
A19	$4,000,000.00	$4,000,000.00	$0.00	$0.00	$242,903.29	0.9392741775	$3,757,096.71
A20	$4,500,000.00	$4,500,000.00	$0.00	$0.00	$273,266.20	0.9392741778	$4,226,733.80
A21	$18,790,000.00	$18,790,000.00	$0.00	$0.00	$311,731.31	0.9834097227	$18,478,268.69
A22	$3,867,439.00	$3,867,439.00	$0.00	$0.00	$0.00	1.0000000000	$3,867,439.00
AP	$557,502.35	$557,502.35	$0.00	$0.00	$655.35	0.9988244893	$556,847.00
AX	$1,596,038.00	$1,596,038.00	$0.00	$0.00	$0.00	0.9264662934	$1,478,675.41
M	$5,742,822.00	$5,742,822.00	$0.00	$0.00	$5,636.14	0.9990185766	$5,737,185.86
B1	$2,574,368.00	$2,574,368.00	$0.00	$0.00	$2,526.55	0.9990185747	$2,571,841.45
B2	$990,142.00	$990,142.00	$0.00	$0.00	$971.75	0.9990185751	$989,170.25
B3	$792,113.00	$792,113.00	$0.00	$0.00	$777.40	0.9990185744	$791,335.60
B4	$594,085.00	$594,085.00	$0.00	$0.00	$583.05	0.9990185748	$593,501.95
B5	$594,084.89	$594,084.89	$0.00	$0.00	$583.05	0.9990185746	$593,501.84
R	$100.00	$100.00	$0.00	$0.00	$100.00	0.0000000000	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Class	Orig Face	Beg Bal	Prin Loss	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
R_SYN	$0.00	$0.00	$0.00	$0.00	$0.00	0.0000000000	$0.00
A10_ROUND	$8,500,000.00	$8,500,000.00	$0.00	$0.00	$517,000.00	0.9391764706	$7,983,000.00
A11_ROUND	$4,250,000.00	$4,250,000.00	$0.00	$0.00	$0.00	1.0000000000	$4,250,000.00
A12_ROUND	$3,250,000.00	$3,250,000.00	$0.00	$0.00	$0.00	1.0000000000	$3,250,000.00
A13_ROUND	$4,000,000.00	$4,000,000.00	$0.00	$0.00	$0.00	1.0000000000	$4,000,000.00
Total	$396,056,656.24	$396,056,656.24	$0.00	$0.00	$5,624,000.40	0.9858000104	$390,432,655.84

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003
PER $1000 DENOMINATION
Class	Orig Face	Beg Bal	Prin Loss	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
A1	$102,599,000.00	1,000.00000000	0.00000000	0.00000000	4.82060166	0.9951793983	995.17939834
A2	$40,270,840.00	1,000.00000000	0.00000000	0.00000000	0.00000000	0.9958131256	995.81312558
A3	$23,554,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A4	$34,804,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A5	$38,822,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A6	$31,239,000.00	1,000.00000000	0.00000000	0.00000000	60.72582253	0.9392741775	939.27417747
A7	$3,970,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A8	$5,878,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A9	$16,749,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A10	$8,500,000.00	1,000.00000000	0.00000000	0.00000000	60.72582235	0.9392741776	939.27417765
A11	$4,250,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A12	$3,250,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A13	$4,000,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A14	$1,953,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A15	$56,373,000.00	1,000.00000000	0.00000000	0.00000000	16.59027708	0.9834097229	983.40972292
A16	$1,613,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A17	$18,790,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	0.9834097227	983.40972272
A18	$15,500,000.00	1,000.00000000	0.00000000	0.00000000	60.72582258	0.9392741774	939.27417742
A19	$4,000,000.00	1,000.00000000	0.00000000	0.00000000	60.72582250	0.9392741775	939.27417750
A20	$4,500,000.00	1,000.00000000	0.00000000	0.00000000	60.72582222	0.9392741778	939.27417778
A21	$18,790,000.00	1,000.00000000	0.00000000	0.00000000	16.59027728	0.9834097227	983.40972272
A22	$3,867,439.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
AP	$557,502.35	1,000.00000000	0.00000440	0.00000000	1.17551074	0.9988244893	998.82448926
AX	$1,596,038.00	1,000.00000000	0.00000000	0.00000000	0.00000000	0.9264662934	926.46629341
M	$5,742,822.00	1,000.00000000	0.00000000	0.00000000	0.98142342	0.9990185766	999.01857658
B1	$2,574,368.00	1,000.00000000	0.00000000	0.00000000	0.98142534	0.9990185747	999.01857466
B2	$990,142.00	1,000.00000000	0.00000000	0.00000000	0.98142489	0.9990185751	999.01857511
B3	$792,113.00	1,000.00000000	0.00000000	0.00000000	0.98142563	0.9990185744	999.01857437
B4	$594,085.00	1,000.00000000	0.00000000	0.00000000	0.98142522	0.9990185748	999.01857478
B5	$594,084.89	1,000.00000000	0.00000000	0.00000000	0.98142540	0.9990185746	999.01857460
R	$100.00	1,000.00000000	0.00000000	0.00000000	1000.00000000	0.0000000000	0.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003
PER $1000 DENOMINATION
Class	Orig Face	Beg Bal	Prin Loss	Deferred Interest	Total Prin	End Cert Pct	End Cert Bal
R_SYN	$0.00	0.00000000	0.00000000	0.00000000	0.00000000	0.0000000000	0.00000000
A10_ROUND	$8,500,000.00	1,000.00000000	0.00000000	0.00000000	60.82352941	0.9391764706	939.17647059
A11_ROUND	$4,250,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A12_ROUND	$3,250,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000
A13_ROUND	$4,000,000.00	1,000.00000000	0.00000000	0.00000000	0.00000000	1.0000000000	1,000.00000000

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
A1	$102,599,000.00	3.6250000000%	3.6250000000%	$102,599,000.00	$309,934.48	$0.00	$0.00	$0.00	$309,934.48
A2	$40,270,840.00	5.5000000000%	5.5000000000%	$40,270,840.00	$184,574.68	$0.00	$0.00	$0.00	$184,574.68
A3	$23,554,000.00	5.5000000000%	5.5000000000%	$23,554,000.00	$107,955.83	$0.00	$0.00	$0.00	$107,955.83
A4	$34,804,000.00	5.5000000000%	5.5000000000%	$34,804,000.00	$159,518.33	$0.00	$0.00	$0.00	$159,518.33
A5	$38,822,000.00	4.7500000000%	4.7500000000%	$38,822,000.00	$153,670.42	$0.00	$0.00	$0.00	$153,670.42
A6	$31,239,000.00	5.5000000000%	5.5000000000%	$31,239,000.00	$143,178.75	$0.00	$0.00	$0.00	$143,178.75
A7	$3,970,000.00	5.5000000000%	5.5000000000%	$3,970,000.00	$18,195.83	$0.00	$0.00	$0.00	$18,195.83
A8	$5,878,000.00	5.5000000000%	5.5000000000%	$5,878,000.00	$26,940.83	$0.00	$0.00	$0.00	$26,940.83
A9	$16,749,000.00	5.5000000000%	5.5000000000%	$16,749,000.00	$76,766.25	$0.00	$0.00	$0.00	$76,766.25
A10	$8,500,000.00	5.5000000000%	5.5000000000%	$8,500,000.00	$38,958.33	$0.00	$0.00	$0.00	$38,958.33
A11	$4,250,000.00	5.5000000000%	5.5000000000%	$4,250,000.00	$19,479.17	$0.00	$0.00	$0.00	$19,479.17
A12	$3,250,000.00	5.5000000000%	5.5000000000%	$3,250,000.00	$14,895.83	$0.00	$0.00	$0.00	$14,895.83
A13	$4,000,000.00	5.5000000000%	5.5000000000%	$4,000,000.00	$18,333.33	$0.00	$0.00	$0.00	$18,333.33
A14	$1,953,000.00	5.5000000000%	5.5000000000%	$1,953,000.00	$8,951.25	$0.00	$0.00	$0.00	$8,951.25
A15	$56,373,000.00	4.5000000000%	4.5000000000%	$56,373,000.00	$211,398.75	$0.00	$0.00	$0.00	$211,398.75
A16	$1,613,000.00	5.5000000000%	5.5000000000%	$1,613,000.00	$7,392.92	$0.00	$0.00	$0.00	$7,392.92
A17	$18,790,000.00	6.5300000000%	6.5300000000%	$18,790,000.00	$102,248.92	$0.00	$0.00	$0.00	$102,248.92
A18	$15,500,000.00	2.6700000000%	2.6700000000%	$15,500,000.00	$34,487.50	$0.00	$0.00	$0.00	$34,487.50
A19	$4,000,000.00	13.2825000000%	13.2825000000%	$4,000,000.00	$44,275.00	$0.00	$0.00	$0.00	$44,275.00
A20	$4,500,000.00	8.3300000000%	8.3300000000%	$4,500,000.00	$31,237.50	$0.00	$0.00	$0.00	$31,237.50
A21	$18,790,000.00	1.9700000000%	1.9700000000%	$18,790,000.00	$30,846.92	$0.00	$0.00	$0.00	$30,846.92
A22	$3,867,439.00	5.5000000000%	5.5000000000%	$3,867,439.00	$17,725.76	$0.00	$0.00	$0.00	$17,725.76
AP	$557,502.35	0.0000000000%	0.0000000000%	$557,502.35	$0.00	$0.00	$0.00	$0.00	$0.00
AX	$1,596,038.00	5.5000000000%	5.5000000000%	$1,596,038.00	$7,315.17	$0.00	$0.00	$0.00	$7,315.17
M	$5,742,822.00	5.5000000000%	5.5000000000%	$5,742,822.00	$26,321.27	$0.00	$0.00	$0.00	$26,321.27
B1	$2,574,368.00	5.5000000000%	5.5000000000%	$2,574,368.00	$11,799.19	$0.00	$0.00	$0.00	$11,799.19
B2	$990,142.00	5.5000000000%	5.5000000000%	$990,142.00	$4,538.15	$0.00	$0.00	$0.00	$4,538.15
B3	$792,113.00	5.5000000000%	5.5000000000%	$792,113.00	$3,630.52	$0.00	$0.00	$0.00	$3,630.52
B4	$594,085.00	5.5000000000%	5.5000000000%	$594,085.00	$2,722.89	$0.00	$0.00	$0.00	$2,722.89
B5	$594,084.89	5.5000000000%	5.5000000000%	$594,084.89	$2,722.89	$0.00	$0.00	$0.00	$2,722.89
R	$100.00	5.5000000000%	35.6760509779%	$100.00	$2.97	$0.00	$0.00	$0.00	$2.97

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
R_SYN	$0.00	0.0000000000%	0.0000000000%	$0.00	$0.00	$0.00	$0.00	$0.00	$0.00
A10_ROUND	$8,500,000.00	5.5000000000%	5.5000000000%	$8,500,000.00	$38,958.33	$0.00	$0.00	$0.00	$38,958.33
A11_ROUND	$4,250,000.00	5.5000000000%	5.5000000000%	$4,250,000.00	$19,479.17	$0.00	$0.00	$0.00	$19,479.17
A12_ROUND	$3,250,000.00	5.5000000000%	5.5000000000%	$3,250,000.00	$14,895.83	$0.00	$0.00	$0.00	$14,895.83
A13_ROUND	$4,000,000.00	5.5000000000%	5.5000000000%	$4,000,000.00	$18,333.33	$0.00	$0.00	$0.00	$18,333.33
Total	$396,056,656.24			$396,056,656.24	$1,820,019.64	$0.00	$0.00	$0.00	$1,820,019.64

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003
PER $1000 DENOMINATION
Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
A1	$102,599,000.00	3.6250000000%	3.6250000000%	1,000.00000000	3.02083333	0.00000000	0.00000000	0.00000000	3.02083333
A2	$40,270,840.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A3	$23,554,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A4	$34,804,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A5	$38,822,000.00	4.7500000000%	4.7500000000%	1,000.00000000	3.95833333	0.00000000	0.00000000	0.00000000	3.95833333
A6	$31,239,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A7	$3,970,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A8	$5,878,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A9	$16,749,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A10	$8,500,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A11	$4,250,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A12	$3,250,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A13	$4,000,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A14	$1,953,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A15	$56,373,000.00	4.5000000000%	4.5000000000%	1,000.00000000	3.75000000	0.00000000	0.00000000	0.00000000	3.75000000
A16	$1,613,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A17	$18,790,000.00	6.5300000000%	6.5300000000%	1,000.00000000	5.44166667	0.00000000	0.00000000	0.00000000	5.44166667
A18	$15,500,000.00	2.6700000000%	2.6700000000%	1,000.00000000	2.22500000	0.00000000	0.00000000	0.00000000	2.22500000
A19	$4,000,000.00	13.2825000000%	13.2825000000%	1,000.00000000	11.06875000	0.00000000	0.00000000	0.00000000	11.06875000
A20	$4,500,000.00	8.3300000000%	8.3300000000%	1,000.00000000	6.94166667	0.00000000	0.00000000	0.00000000	6.94166667
A21	$18,790,000.00	1.9700000000%	1.9700000000%	1,000.00000000	1.64166667	0.00000000	0.00000000	0.00000000	1.64166667
A22	$3,867,439.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
AP	$557,502.35	0.0000000000%	0.0000000000%	1,000.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
AX	$1,596,038.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
M	$5,742,822.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
B1	$2,574,368.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
B2	$990,142.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
B3	$792,113.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
B4	$594,085.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
B5	$594,084.89	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
R	$100.00	5.5000000000%	35.6760509779%	1,000.00000000	29.73004248	0.00000000	0.00000000	0.00000000	29.73004248

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003
PER $1000 DENOMINATION
Class	Orig Face	Int Rate Accrued	Int Rate Paid	Beg Cert Prin/Not Bal	Curent Int Accrued	Int Shortfall	Unscheduled Int	Int Reimbursed	Total Int Dist
R_SYN	$0.00	0.0000000000%	0.0000000000%	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000	0.00000000
A10_ROUND	$8,500,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A11_ROUND	$4,250,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A12_ROUND	$3,250,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333
A13_ROUND	$4,000,000.00	5.5000000000%	5.5000000000%	1,000.00000000	4.58333333	0.00000000	0.00000000	0.00000000	4.58333333

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2003 DISTRIBUTION REPORT
SERIES: AMAC 034 WEIGHTED AVERAGE PC RATE: 5.51299%
POOL NUMBER: 2069
ISSUE DATE: 03/31/2003
CERTIFICATE BALANCE AT ISSUE: $396,056,656.24
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	847		$396,056,656.24
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$388,759.27
Unscheduled Principal Collection/Reversals		$152,265.56
Liquidations-in-full	10	$5,082,975.57
Net principal Distributed		$5,624,000.40	-$5,624,000.40

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	837		$390,432,655.84

SCHEDULED INTEREST AT MORTGAGE RATE:		$2,040,824.09

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
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
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$220,804.45

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:		$7,444,020.04

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2003 DISTRIBUTION REPORT
SERIES: AMAC 034 WEIGHTED AVERAGE PC RATE: 5.51299%
POOL NUMBER: ALL
ISSUE DATE: 03/31/2003
CERTIFICATE BALANCE AT ISSUE: $396,056,656.24
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
BALANCES FROM LAST FISCAL MONTH-END:	847		$396,056,656.24
PRINCIPAL POOL COLLECTION(S):
Scheduled Principal Collection Due Current Month		$388,759.27
Unscheduled Principal Collection/Reversals		$152,265.56
Liquidations-in-full	10	$5,082,975.57
Net principal Distributed		$5,624,000.40	-$5,624,000.40

CAPITAL LOSS (PRINCIPAL WRITTEN OFF):			$0.00

BALANCE CURRENT FISCAL MONTH-END:	837		$390,432,655.84

SCHEDULED INTEREST AT MORTGAGE RATE:		$2,040,824.09

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
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
Net Other Distributions		$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
MASTER SERVICING
MORTGAGE PASS-THROUGH CERTIFICATES
04/2003 DISTRIBUTION REPORT
	TOTAL NUMBER OF MORTAGES	CERTIFICATE ACCOUNT ACTIVITY (@ PCRATE)	CERTIFICATE BALANCE OUTSTANDING
SCHEDULED SERVICING FEE EXPENSES:		$220,804.45

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:		$7,444,020.04

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

Distribution by Group
Pool ID		Principal		Interest		Total
Pool - 2069		$5,624,000.40		$1,820,019.64		$7,444,020.04
Aggregate		$5,624,000.40		$1,820,019.64		$7,444,020.04

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 - 2069	$396,056,656.24	847	10	837	$390,432,655.84	$388,759.27	$5,082,975.57	$152,265.56	$5,624,000.40
Aggregate	$396,056,656.24	847	10	837	$390,432,655.84	$388,759.27	$5,082,975.57	$152,265.56	$5,624,000.40

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 - 2069	0	$0.00	0	$0.00	0	$0.00	0	$0.00
Aggregate	0	$0.00	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 - 2069		0		$0.00		0		$0.00
Aggregate		0		$0.00		0		$0.00

Aggregate Loss Amounts by Group
Pool ID			Count			Loss Amount
Group 1(2069)			0			$0.00
Aggregate			0			$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

INSURANCE RESERVES - Group 1(2069)
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	$0.00	$0.00	$0.00	$0.00	$0.00
Bankruptcy Bond
Single-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$0.00	$0.00	$0.00	$0.00	$0.00

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	$0.00	$0.00	$0.00	$0.00	$0.00
Bankruptcy Bond
Single-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Multi-Units	$0.00	$0.00	$0.00	$0.00	$0.00
Mortgage Repurchase	$0.00	$0.00	$0.00	$0.00	$0.00

WASHINGTON MUTUAL MORTGAGE SECURITIES CORP.
Series: AMAC.034
Distribution Date: 04/25/2003

ABN AMRO MORT CORP MULTI CLASS MORT PASS THR CERT SER 2003-4 8-K