Page 9
Sub-section - 4.05
ABNORMAL PROCEDURES
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
ENGINE COMPUTER FAILURE
If Malfunction Occurs During Takeoff
Below 80 KIAS........................................................... Abort
Above 80 KIAS .......................................................... Continue takeoff - Keep engine
within N
1 REF.
If Malfunction Occurs Airborne
ENG CMPTR (affected engine) ................................. OVSPD PROT
Thrust lever (affected engine) .................................... Adjust to keep required RPM & ITT -
Monitor limitations.
If Malfunction Occurs at Maximum Continuous Power
Thrust lever (affected engine) .................................... Adjust to achieve maximum
continuous ITT (968
°
C).
Engine indications ..................................................... Monitor limitations
NOTES:
1. Time required for a slam acceleration, from idle to take-off power, will be greatly
increased.
2. To minimize acceleration time on the effected engine, ENG ANTICE should be
selected OFF and the MAIN AIR VLV selected to CLOSE.
Landing
ENG ANTICE (affected engine)................................. OFF (if conditions permit)
MAIN AIR VLV (affected engine) ............................... CLOSE (if conditions permit)
NOTES:
1. If operating either or both engines in the Manual Mode, special care must be taken
to account for the slow engine acceleration. According to the conditions,
acceleration time will be greatly increased.
2. To minimize acceleration time, Engine Antice and the Main Air Valve, on the affected
engine(s), should be turned OFF and CLOSE if conditions permit.
ENG 1
CMPTER
or
NOTE:
The engine synchronizer disengages with an engine computer failure.
ENG 2
CMPTER
For Training Purposes Only