SDR ASAA2015120214080

Service difficulty report · Autopilot Sys · Boeing 737890

Difficulty date: December 2, 2015
Submitted: December 4, 2015
Operation: Air carrier
Aircraft: N581AS
Make and model: Boeing 737890
Aircraft serial: 35188
Aircraft time: 32,975 hours, 10,040 cycles
System (JASC): 2210 · Autopilot System
Part: Autopilot Sys
Condition: Malfunctioned
Stage of operation: AP
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

FAILED ATTEMPTED AUTOLAND APPROACH. AUTOPILOT DISENGAGED. ACFT GROUNDED. PERFORMED FIM 22-11, TASK 801, FFR SHOWED ON FCC A, LOC BEAM ANOMALY DET NR 22-11367 AND FCC B SHOWED FGN, FCC DROPPED IN APPROXIMATELY 22-11414. REF SAME FIM, CURRENT STATUS TEST GOOD, PERFORMED LAND VERIFY BITE NR 49, NO FAULTS.