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MAINTENANCE MANUAL

 (3)  S 285-057Make sure that the YAW DAMPER INOP R light is on.
 (4)  S 865-058Close this circuit breaker on the P11 panel: (a) 11G18, FLT CONT ELEC 1R DC
 (5)  S 285-059Make sure that the YAW DAMPER INOP R light is off.
 S 865-377

 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPOILERS OR MOVE ALL
_______ PERSONS AND EQUIPMENT AWAY FROM THE SPOILER PANELS. THE SPOILERS CAN RETRACT QUICKLY AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (6)
Do the deactivation procedure for the spoilers (Ref 27-61-00) or move all persons and equipment away from the spoiler panels.

 S 865-060

 (7)
Open this circuit breaker on the P11 panel:

 (a) 11G18, FLT CONT ELEC 1R DC
 S 285-061
 (8)
Make sure that YAW DAMPER INOP R light is on.

 S 865-062

 (9)
Close this circuit breaker on the P11 panel:

 (a) 11G28, FLT CONT ELEC 2R DC
 S 285-063
 (10) Make sure that YAW DAMPER INOP R light is off.
 S 845-369
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPOILERS OR MOVE ALL
_______ PERSONS AND EQUIPMENT AWAY FROM THE SPOILER PANELS. THE SPOILERS CAN RETRACT QUICKLY AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (11)
 Do the deactivation procedure for the spoilers (Ref 27-61-00) or move all persons and equipment away from the spoiler panels.

 S 865-064

 (12)
 Close this circuit breaker on the P11 panel:

 (a) 11G18, FLT CONT ELEC 1R DC
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757
MAINTENANCE MANUAL

 S 865-065
 (13) Open these circuit breakers on the P11 panel:
 (a)
11C7, FLT CONT ELEC 1L DC

 (b)
11C9, FLT CONT ELEC 2L DC

 S 285-066
 (14)
 Make sure that YAW DAMPER INOP L light is on.

 S 865-067

 (15)
 Close this circuit breaker on the P11 panel:

 (a) 11C9, FLT CONT ELEC 2L DC
 S 285-068
 (16) Make sure that YAW DAMPER INOP L light is off.
 S 845-370
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE SPOILERS OR MOVE ALL
_______ PERSONS AND EQUIPMENT AWAY FROM THE SPOILER PANELS. THE SPOILERS CAN RETRACT QUICKLY AND CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (17)
 Do the deactivation procedure for the spoilers (Ref 27-61-00) or move all persons and equipment away from the spoiler panels.

 S 865-069

 (18)
 Open this circuit breaker on the P11 panel:

 (a) 11C9, FLT CONT ELEC 2L DC
 S 285-070
 (19)
 Make sure that the YAW DAMPER INOP L light is on.

 S 865-071

 (20)
 Close this circuit breaker on the P11 panel:

 (a) 11C7, FLT CONT ELEC 1L DC
 S 285-072
 (21)
 Make sure that the YAW DAMPER INOP L light is off.

 S 865-073

 (22)
 Close this circuit breaker on the P11 panel:

 (a) 11C9, FLT CONT ELEC 2L DC
 H. Yaw Damper Engage Test
 S 865-074
 (1) Open this circuit breaker on the P11 panel:
 (a) 11A18, YAW DAMPER LEFT
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 285-075
 (2)  
Make sure that the YAW DAMPER INOP L light is on, and that the upper EICAS display shows the L YAW DAMPER message.
　
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