S 285-212
(10)
Make sure that the Rudder Position Indicator, on the Lower EICAS Display - Status Page, shows no rudder movement for 10 seconds.
S 985-213
(11)
Push the DISPLAY switch on the Left YAW DAMPER MODULE.
S 285-214
(12)
Make sure that these fault messages are not shown on the LEFT YAW DAMPER MODULE fault display:
(a)
AIRGND 1
(b)
AIRGND 1/2
(c)
AIRGND 2
S 985-215
(13)
Push the DISPLAY SWITCH on the Right YAW DAMPER module.
S 285-217
(14)
Make sure that these fault messages are not shown on the Right YAW DAMPER MODULE fault display:
(a)
AIRGND 1
(b)
AIRGND 1/2
(c)
AIRGND 2
S 865-216
(15) Open these circuit breakers on the P11 panel:
(a) 11A18, YAW DAMPER LEFT
(b) 11C6, CSEU 1L AC
or
FLT CONT ELEC 1L AC
(c) 11C8, CSEU 2L AC
or
FLT CONT ELEC 2L AC
S 865-218
(16) Close this circuit breaker on the P11 panel:
(a) 11C30, LANDING GEAR POS SYS 1
S 285-219
(17)
Make sure that the YAW DAMPER-R INOP light, on the Yaw Damper Control Panel (P5), is off.
S 285-389
(18)
Make sure that the "L YAW DAMPER " message is displayed on the Upper EICAS Display.
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S 985-220
(19)
Stop for 2 seconds minimum and then push the DISPLAY switch on the Right YAW DAMPER MODULE.
S 285-221
(20)
Make sure that this fault message is shown on the Right YAW DAMPER MODULE fault display:
(a) AIRGND 2
S 985-222
(21)
Put the COMPUTER Select switch, on the EICAS Display Select Panel (P9), in the L position.
S 985-391
(22)
Push the ECS/MSG switch on the EICAS Maintenance Panel (P61).
S 285-223
(23)
Make sure that the "YAW DAMPER" message is shown on the Lower EICAS Display - Maintenance Page.
S 985-224
(24)
Put the COMPUTER Select switch, on the EICAS Display Select Panel, in the R position.
S 285-225
(25)
Make sure that the "YAW DAMPER" message is shown on the Lower EICAS Display - Maintenance Page.
S 865-226
(26)
Open this circuit breaker on the P11 panel:
(a) 11C30, LANDING GEAR POS SYS 1
S 985-227
(27)
Stop for 10 seconds minimum and then push the DISPLAY switch on the Right YAW DAMPER MODULE.
S 285-228
(28)
Make sure that these fault messages are not shown on the Right YAW DAMPER MODULE Fault Display:
(a)
AIRGND 1
(b)
AIRGND 1/2
(c)
AIRGND 2
S 865-229
(29) Close these circuit breakers on the P11 panel:
(a) 11A18, YAW DAMPER LEFT
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MAINTENANCE MANUAL
(b) 11C6, CSEU 1L AC
or
FLT CONT ELEC 1L AC
(c) 11C8, CSEU 2L AC
or
FLT CONT ELEC 2L AC
S 865-230
(30) Close this circuit breaker on the P11 panel:
(a) 11C30, LANDING GEAR POS SYS 1
S 865-231
(31) Open these circuit breakers on the P11 panel:
(a)
11F34, YAW DAMPER RIGHT
(b)
11G17, CSEU 1R AC or FLT CONT ELEC 1R AC
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