SDR ASAA2017053120930

Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date: May 31, 2017
Submitted: June 5, 2017
Operation: Air carrier
Aircraft: N491AS
Make and model: Boeing 737990ER
Aircraft serial: 44109
Aircraft time: 6,159 hours, 2,108 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

UNSUCCESSFUL AUTOLAND. ACFT GROUNDED. IAW FIM 22-11, TASK 801 DFCS BITE, NO CURRENT FAULTS. FLIGHT LEG 01 SHOWS FAULTS 22-11210 (FCC-B), 22-11209 (FCC-A). ACCOMPLISHED FIM 22-11 TASK 801 DFCS BITE GROUP NR 20. TESTS PASS, COULD NOT DUPLICATE. ACCOMPLISHED TEST GROUP NR 49 LAND VERIFY REF 22-11-00/201. ALL REQUIRED TESTS PASSED, SMM 34-36-00. NO CURRENT FAULTS. LEGS 5 SHOWS AIII INCAP REF G/S ERROR, LEG 7 RO CTN ILS ANOMALY. ACCOMPLISHED HGS SYSTEM AND OPS TEST. ALL REQUIRED TESTS PASSED.