Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
December 26, 2019
Submitted
December 28, 2019
Operation
Air carrier
Aircraft
N477AS
Make and model
Boeing 737990ER
Aircraft serial
40716
Aircraft time
18,362 hours, 5,794 cycles
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

AUTOLAND FAIL, AUTOPILOT TRACKED LOCALIZER AND GLIDESLOPE WELL UNTIL APPROXIMATELY 60 FEET AGL JUST PRIOR TO AND DURING LANDING FLARE, THE AIRCRAFT DRIFTED LEFT OF CENTERLINE BY APPROXIMATELY 50 FEET. AUTOPILOT WAS DISCONNECTED AND AIRCRAFT WAS LANDED MANUALLY. GROUNDED - YES. ACCOMPLISHED 22-11-801 BITE GROUP 20 NO LOGGED FAULTS. LAND VERIFY REF 22-11-00 BITE GROUP 49 - NO FAULTS. MMR BITE OK.