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MAINTENANCE MANUAL
(5) S 285-295Make sure that this message is shown on the right YAW DAMPER module fault display: (a) L IRU
(6) S 985-296Stop for a minimum of 10 seconds, then push the DISPLAY button on the left YAW DAMPER module.
(7) S 285-297Make sure that this message is not shown on the left YAW DAMPER module fault display: (a) L IRU
(8) S 985-298Push the DISPLAY button on the right YAW DAMPER module.
(9) S 285-299Make sure that this message is not shown on the right YAW DAMPER module fault display: (a) L IRU
S 985-300
(10)
Push and release the TEST button on front of the right IRU.
S 985-301
(11)
Stop for a minimum of 5 seconds, then push the DISPLAY button on the left YAW DAMPER module.
S 285-302
(12)
Make sure that this message is shown on the left YAW DAMPER module fault display:
(a) R IRU
S 985-303
(13)
Push the DISPLAY button on the right YAW DAMPER module.
S 285-304
(14)
Make sure that this message is shown on the right YAW DAMPER module fault display:
(a) R IRU
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757
MAINTENANCE MANUAL
S 985-305
(15)
Stop for a minimum of 10 seconds, then push the DISPLAY button on the left YAW DAMPER module.
S 285-306
(16)
Make sure that this message is not shown on the left YAW DAMPER module fault display.
(a) R IRU
S 985-307
(17)
Push the DISPLAY button on the right YAW DAMPER module.
S 285-308
(18)
Make sure that this message is not shown on the right YAW DAMPER module fault display:
(a) R IRU
S 985-309
(19)
Push and release the TEST button on front of center the IRU.
S 985-310
(20)
Stop for a minimum of 5 seconds, then push the DISPLAY button on the left YAW DAMPER module.
S 285-311
(21)
Make sure that this message is shown on the left YAW DAMPER module fault display:
(a) C IRU
S 985-312
(22)
Push the DISPLAY button on the right YAW DAMPER module.
S 285-313
(23)
Make sure that this message is shown on the right YAW DAMPER module fault display:
(a) C IRU
S 985-314
(24) Stop for a minimum of 10 seconds, then psuh the DISPLAY button on the left YAW DAMPER module.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
S 285-315
(25) Make sure that this message is not shown on the left YAW DAMPER module fault display.
(a) C IRU
S 985-316
(26)
Push the DISPLAY button on the right YAW DAMPER module.
S 285-317
(27)
Make sure that this message is not shown on the right YAW DAMPER module fault display:
(a) C IRU
M. Yaw Damper Modal Suppression Accelerometer Interface Test
S 985-318
(1)
Open these circuit breakers on the P11 panel:
(a)
11C6, CSEU 1L AC
or
FLT CONT ELEC 1L AC
(b)
11C8, CSEU 2L AC
or
FLT CONT ELEC 2L AC
(c)
11G17, CSEU 1R AC
or
FLT CONT ELEC 1R AC
(d)
11G27, CSEU 2R AC
or
FLT CONT ELEC 2R AC
(2)
Disconnect the accelerometer electrical connectors D1357 and D1359.
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