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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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