FAA Approved Airplane Flight Manual Supplement

190-00682-02 Rev. E Hawker Beechcraft C90A, C90GT and C90GTi King Air
FAA APPROVED Page 33 of 124
AUTOPILOT PRE-FLIGHT TEST FAIL
(Red annunciator on PFD)
• Indicates the AFCS system failed the automatic Pre-Flight test. The autopilot, ESP (if installed),
and electric elevator trim are inoperative. Flight Director may still function.
AUTOPILOT OVERSPEED RECOVERY
(Yellow on PFD)
1. Power.................................................................................................................................. REDUCE
When overspeed condition is corrected:
2. Autopilot ..................................................................... RESELECT VERTICAL MODE (if necessary)
NOTE
Overspeed recovery mode provides a pitch up command to decelerate the airplane at or
below the maximum autopilot operating speed (226 KIAS / 0.46 M). Overspeed recovery is
not active in altitude hold (ALT), glideslope (GS), or glidepath (GP) modes.
AUTOPILOT UNDERSPEED PROTECTION ACTIVATION AND RECOVERY
(ESP-Equipped Aircraft Only)
(Red Warning Annunciator on the PFDs on ESP-equipped aircraft. May also be
accompanied by an amber annunciator above the airspeed tape display and aural
“AIRSPEED” alert)
1. Power Levers ..................... INCREASE POWER AS REQUIRED TO CORRECT UNDERSPEED
2. Aircraft Attitude and Altitude ......................................................................................... MONITOR
After underspeed condition is corrected:
3. Autopilot .........................................RESELECT VERTICAL AND LATERAL MODES (if necessary)
4. Power Levers .......................................................................................... ADJUST AS NECESSARY
NOTE
Autopilot Underspeed Protection Mode provides a pitch down command to maintain 90 +/-2
KIAS, or 2 KIAS above stall warning airspeed, depending on the vertical mode selected.
Underspeed Protection is not available below 200 feet AGL, except in go-around (GA) mode.