737 Flight Crew Operations Manual
10.6
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D6-27370-4Q8-SJA
10.6
One or more of the following may be evidence of
unreliable airspeed or Mach indications:
•Speed/altitude information not consistent with pitch
attitude and thrust setting
•SPD or MACH failure flag
•SPD LIM failure flag
•Blank or fluctuating airspeed display
•Variation between captain and first officer airspeed
displays
•Radome damage or loss
•Overspeed warning
•Simultaneous overspeed and stall warnings.
OFF - Flight Recorder
1 Continue normal operation.
■ ■ ■ ■
SG FAIL
1 EFI transfer switch . . . .BOTH ON 1 or BOTH ON 2
Select the operating control panel.
2 Do not engage either autopilot.
■ ■ ■ ■
▼Airspeed Unreliable continued▼
Additional Information
OFF
FLIGHT RECORDER OFF
Condition:
The flight recorder is off.
SG FAIL
Condition:
The SG FAIL alert or blanking of both EADI
and EHSI displays indicates a failure of the
related symbol generator.
December 16, 2016