22-20-00
Page 501
Dec.12
HAWKER 800XP PRO LINE 21 AIRCRAFT MAINTENANCE MANUAL
AUTO FLIGHT
SPEED-ATTITUDE CORRECTION
22-20-00
MACH TRIM SYSTEM
500500
ADJUSTMENT/TEST
1. FLIGHT GUIDANCE SYSTEM
A. Adjustment/Test
(1) Energize the airplane busbars (Ref. 24-01-00, 201, Figure 201).
(2) Review the Flight Guidance Computers (FGC) diagnostics.
(3) If no faults are found, engage the auto-pilot.
(4) Make sure that the mach trim fail annunciator clears.
(5) Disengage the auto-pilot.
(6) Make sure that the mach trim annunciator remains clear.
(7) De-energize the airplane busbars.
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