Service difficulty report · Autopilot Sys · Cessna 650

Difficulty date
April 8, 2005
Submitted
April 11, 2005
Operation
Air carrier
Aircraft
N795QS
Make and model
Cessna 650
Aircraft serial
6507095
Aircraft time
4,356 hours, 3,384 cycles
Part
Autopilot Sys
Part number
7003974729
Part serial
93033589
Condition
Malfunctioned
Location
Cockpit
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHEN AUTOPILOT A-SIDE ENGAGED SYSTEM FLAGGED FAIL CYCLED TO B-SIDE, AND DEFECTED RIGHT RUDDER INPUTS RUDDER INPUTS BECAME INCREASINGLY AGGRESSIVE PIC AND SIC COMMAND BARS SHOWED 2-3 DEGREES TO BANK DISAGREEMENT. RAN AUTOPILOT TEST IAW CE650 MM 22-10-00; NO DEFECTS NOTED. PERFORMED GROUND CHECK OF THE SPZ-8000 SYSTEM IAW HONEYWELL TECH PUB A15-1146-058 CHAPTER 22-05-07, FOUND NO ERRORS. NO FAULTS STORED IN FLIGHT FAULT SUMMARY. SWAPPED FGC'S & PERFORMED OPS CHECKS. OPS CHECKED GOOD PER ABOVE REFERENCES.

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