Service difficulty report · Autopilot Sys · Boeing 737890

Difficulty date
August 20, 2014
Submitted
August 25, 2014
Operation
Air carrier
Aircraft
N514AS
Make and model
Boeing 737890
Aircraft serial
35193
Aircraft time
22,588 hours, 6,916 cycles
Part
Autopilot Sys
Condition
Malfunctioned
Location
A-System
Stage of operation
CL
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

DURING CLIMB OUT AT APPROXIMATLY 12000 FEET, AUTOPILOT A WAS ENGAGED AND IMMEDIATLEY BUMPED AND STARTED TO CLIMB AT ABOUT 2000 FPM. AUTOPILOT WAS DISENGAGED AND SWITCHED TO AUTOPILOT B AND OPERATED NORMALLY. ACFT GROUNDED. OPEN