Service difficulty report · Autopilot Sys · Boeing 737890

Difficulty date
December 8, 2016
Submitted
December 12, 2016
Operation
Air carrier
Aircraft
N560AS
Make and model
Boeing 737890
Aircraft serial
35179
Aircraft time
39,385 hours, 11,916 cycles
Part
Autopilot Sys
Condition
Malfunctioned
Location
B System
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

AUTOPILOT B DISENGAGED AT FL 360 TWO TIMES. AUTOPILOT A, WORKED FINE. ACFT GROUNDED. PERFORMED CURRENT STATUS CHECK, NO FAULTS. PERFORMED LAND VERIFY BITE GROUP 49, ALL TESTS PASSED. ACFT REMAINS CAT IIIA AUTOLAND & HGS.