SDR ASAA2018022023653

Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date: February 20, 2018
Submitted: February 22, 2018
Operation: Air carrier
Aircraft: N442AS
Make and model: Boeing 737990ER
Aircraft serial: 43293
Aircraft time: 16,881 hours, 5,592 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

CAT III HGS/AUTO FAILED. APCH WARN AND LEFT DRIFT AT TOUCHDOWN. WIND 100/11 KTS. ACFT GROUNDED. HGS SYSTEM TEST GOOD. NO ACTIVE FAULTS. REF HGS 4000 SSM 34-36-00. DFCS OPS TEST GOOD, NO ACTIVE FAULTS IAW AMM 22-11-00. INBOUND CONDITION FOR AUTOLAND AND HGS COMPLIED WITH IAWAMM 22-00-01-730-807 AND 22-00-01-730-808. ALL TESTS PASSED.