Airplane Flight Manual Supplement

Hawker Beechcraft C90A and C90GT King Air 190-00682-02 Rev. D
Page 62 of 117
c. White PFT Annunciator..................................................................ILLUMINATED (~ 5 Seconds)
d. White PFT Annunciator........................................EXTINGUISHES when preflight test complete
e. Autopilot Disconnect Tone.............................................................................................SOUNDS
2. Standby Attitude Indicator..................................................................................................... CHECK
a. PULL TO CAGE Knob ...............................................................PULL KNOB TO ERECT GYRO
b. Instrument Fail Flag .................................................NOT DISPLAYED IN INSTRUMENT FACE
c. PFD1, PFD2, and Standby Attitude Indicator.......................... COMPARE and CROSS CHECK
3. Altimeters ................................................................................................. SET and CROSS CHECK
PFD 1, PFD 2, Standby Altimeter
If barometric pressure settings on the PFD1 and PFD2 altimeters differ by more than 0.03 in-Hg
(1 HPa), the baro display on both PFDs will be amber.
TAXI
The following procedure should be accomplished while the aircraft is taxiing and prior to
conducting the airplane’s AFM BEFORE TAKEOFF (RUNUP) checklist.
NOTE
Taxiing the aircraft before a valid GPS position has been acquired can cause attitude and/or
heading display to indicate a failed condition. Interference from GPS repeaters or magnetic
anomalies can cause an intermittent loss of attitude and heading displays while the aircraft in on
the ground.
1. Flight Instruments.................................................................................................................. CHECK
a. Compare attitude displayed by PFD1, PFD2, and Standby Attitude Indicator
b. Compare altitude displayed by PFD1, PFD2, and Standby Altimeter
c. Verify the correct barometric pressure is set in the PFD1, PFD2, and Standby Altimeters
d. Compare heading displayed by PFD1, PFD2, and Magnetic Compass
NOTE
The standby compass is erratic when windshield anti-ice, air conditioner, or electric heat is ON.
Windshield anti-ice, air conditioner, and electric heat must be OFF for heading verification check.
e. Verify turn rate and slip indicator display appropriately.