Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
September 8, 2018
Submitted
September 10, 2018
Operation
Air carrier
Aircraft
N442AS
Make and model
Boeing 737990ER
Aircraft serial
43293
Aircraft time
19,162 hours, 6,371 cycles
Part
Unknown
Condition
Malfunctioned
Location
Autopilot Sys
Stage of operation
LD
How discovered
O
Nature of condition
O
Precautionary procedure
H

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

UNSUCCESSFUL HGS/AUTOLAND. UNSTABLE ON SHORT FINAL. CHASING GLIDESLOPE AND AIRSPEED. SLOW AIRSPEED AT 100', ADDED EXCESSIVE POWER RESULTING IN 15 KTS GAIN IN THE FLAIR. WAS NOT GOING TO LAND IN TD2E. TURNED OFF AUTO PILOT AND LANDED MANUALLY. WIND 330 AT 10KTS. NO GUSTS REPORTED BY TOWER. GROUNDED - YES. ACCOMPLISHED DFCS BITE REF FIM 22-11 TASK 801. NO ACTIVE FAULTS FOUND. FLT HISTORY LOGGED FAULT 22-11822, MSG 22-11303. PERFORMED FIM 22-11 TASK 811 FLIGHT MANAGEMENT COMPUTER (FMC-1) PROBLEM. NO FAULTS FOUND. PERFORMED FIM 22-14 TASK 801 FCC INTERNAL PROBLEM FAULT ISOLATION. NO FAULTS FOUND. ACCOMPLISHED FIM 22-11 TASK 801 THE CURRENT STATUS AUTOPILOT (GROUP 11). ALL TESTS PASSED. ACCOMPLISHED AMM TASK 22-00-01-730-803 MAINTENANCE TEST FOR MEL 22-99C. ALL TESTS PASSED.