Service difficulty report · Autopilot Sys · Boeing 737890

Difficulty date
April 18, 2017
Submitted
April 20, 2017
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
31,798 hours, 9,442 cycles
Part
Autopilot Sys
Condition
Malfunctioned
Location
A & B
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

NEITHER AUTOPILOT A OR B WILL ENGAGE. ACFT GROUNDED. FFR SHOWS MAINTENANCE MESSAGES 22-11182, 22-11208, 22-11161 ON LEG 1 ONLY. ACCOMPLISHED CHANNEL A SPEED STAB TRIM LIBRARY TEST. NO CURRENT FAULTS NOTED. GROUND VERIFICATION SUCCESSFUL IAW AMM 22-11-00.