Service difficulty report · Autopilot Sys · Boeing 737990ER

Difficulty date
October 2, 2022
Submitted
October 4, 2022
Operation
Air carrier
Aircraft
N477AS
Make and model
Boeing 737990ER
Aircraft serial
40716
Aircraft time
26,243 hours, 8,140 cycles
Part
Autopilot Sys
Condition
Faulted
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

JUST AFTER BAART AUTOPILOT DISCONNECTED AT FL 340 AND SATCOM LOCKUP. GROUNDED - YES. RE-ENGAGED AUTOPILOT, FOLLOWED ASA QRH FOR SATCOM LOCKUP.