Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
January 27, 2020
Submitted
January 31, 2020
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
15,361 hours, 4,858 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

ON TOUCHDOWN AUTOLAND APPROACH, AIRCRAFT TOUCHED DOWN IN TOUCHDOWN ZONE AND IMMEDIATLY DEVIATED LEFT OFF CENTERLINE. GROUNDED - YES. DFCS FAULT HISTORY SHOWS NO FAULTS. ACCOMPLISHED DFCS LAND VERIFY TEST (GP 49) IAW AMM 22-11-00 & HGS SYSTEM TEST IAW SMM 34-36-00, OPS CHECKED NORMAL.