Service difficulty report · Autopilot Sys · Boeing 737890

Difficulty date
July 31, 2014
Submitted
August 5, 2014
Operation
Air carrier
Aircraft
N579AS
Make and model
Boeing 737890
Aircraft serial
35187
Aircraft time
28,401 hours, 8,467 cycles
Part
Autopilot Sys
Condition
Malfunctioned
Location
B
Stage of operation
NR
How discovered
O
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

AUTOPILOT "B" DISENGAGED TWICE OVER COURSE OF 90 MINS FOR UNKNOWN REASONS. ACFT GROUNDED. DFCS LOGGED, MCP DATA INV MESSAGE 22-11607. FOLLOWED FIM 22-11, TASK 817, INITIAL EVAL TEST PASSED. NO CURRENT STATUS FAULTS.