SDR ASAA2017120822881

Service difficulty report · Autoland Sys · Boeing 737890

Difficulty date: December 8, 2017
Submitted: December 14, 2017
Operation: Air carrier
Aircraft: N577AS
Make and model: Boeing 737890
Aircraft serial: 35186
Aircraft time: 40,710 hours, 12,157 cycles
System (JASC): 2210 · Autopilot System
Part: Autoland Sys
Condition: Malfunctioned
Stage of operation: LD
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

UNSUCCESFUL AUTOLAND AIRCRAFT DRIFT MORE THAN 35 FEET LEFT OF CENTELINE WITHIN 200 FT OF RUNWAY. GROUNDED - YES. REF B737-800 FIM 22-11-00-810-825, B737-800 AMM 22-00-01-730-807, 22-00-01-730-808, HGS-4000 SMM 34-36-00. DFCS BITE GRP#20 FRM, SHOWS NO CURRENT FAULTS OR IN HISTORY. ACCOMPLISHED LAND VERIFY BITE GRP# 49. HGS SLOWS NO CURRENT FAULTS. LEG 01 SHOWS FC 70/71. NO HISTORY 30 DAYS ON THESE MESSAGES. SYSTEM TEST ACCOMPLISHED. ALL REQUIRED TESTS PASSED.