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Sub-section - 4.05
ABNORMAL PROCEDURES
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
HIGH ENGINE VIBRATION
If engine malfunction is confirmed or general vibration is present, complete ENGINE
SHUTDOWN or FAILURE IN FLIGHT procedure - EMERGENCY PROCEDURES - Section 3.
If high engine vibration is suspected, complete the following procedure on each engine, one at a
time:
• Slowly retard the engine thrust lever to idle and monitor the engine instruments for any
abnormalities. Note if there is any reduction in the vibration levels as the thrust lever is
being retarded.
• Slowly move the thrust lever to its original position and note if there is any increase in
vibration levels or if there are any abnormalities on the engine instruments.
• If it has been determined from this procedure that there are high levels of vibration from
one of the engines, complete ENGINE SHUTDOWN or FAILURE IN FLIGHT procedure -
EMERGENCY PROCEDURES - Section 3, on the affected engine.
For Training Purposes Only