Boeing 737 - IRS ON DC

737 Flight Crew Operations Manual
11.11
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D6-27370-4Q8-SJA
11.11
7 IRS transfer switch . . . .BOTH ON L or BOTH ON R
Select the operating IRS.
8 Autothrottle (if engaged). . . . . . . . . . .Disengage
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ON DC
1 Choose one:
▼IRS FAULT continued▼
Note: The selected IRS is the source of:
•Attitude and heading for both EADIs and EHSIs
•AFDS guidance
•Weather radar information
•GPWS and Windshear alerts
Note: Autopilot(s) cannot be engaged.
ON DC
IRS ON DC
Condition:
IRS AC power is failed.
Left IRS ON DC light is illuminated:
The left IRS continues to operate as long as
DC power is available.
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Right IRS ON DC light is illuminated:
Power to the right IRS is removed after 5
minutes.
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December 15, 2019