SDR ASAA2015101713514

Service difficulty report · Autopilot Sys · Boeing 737890

Difficulty date: October 17, 2015
Submitted: October 20, 2015
Operation: Air carrier
Aircraft: N583AS
Make and model: Boeing 737890
Aircraft serial: 35681
Aircraft time: 31,666 hours, 9,382 cycles
System (JASC): 2210 · Autopilot System
Part: Autopilot Sys
Condition: Malfunctioned
Stage of operation: NR
How discovered: 9
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

B-AUTOPILOT AND B-CWS INOP. ACFT GROUNDED. ACCOMPLISHED DFCS BITE REF FIM 22-11, TASK 801. FAULT REVIEW FOR LAST LEG LOGGED CHANNEL B, A/P DISC SW INPUT INV FAULT MSG 22-11282. PERFORMED AUTOPILOT LRU TEST GROUP 11, 20 AND DFCS GROUP NR 49 LAND VERIFY TEST IAW MM 22-11-00 AND HGS SYS TEST IAW SMM 34-36-00. ALL TESTS PASS. ACFT REMAINS QUALIFIED CAT 111A AUTOLAND AND HGS OPS. STATUS PLACARD SCREW REFLECTS SAME. ACFT APPROACH SURVEY COMPLETED. NO HISTORY 30 DAYS.