Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
November 16, 2022
Submitted
November 21, 2022
Operation
Air carrier
Aircraft
N486AS
Make and model
Boeing 737990ER
Aircraft serial
44107
Aircraft time
26,558 hours, 8,361 cycles
Part
Autoland Sys
Condition
Malfunctioned
Stage of operation
LD
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

IN FLARE, A/C ROLLED LEFT 10-15 DEG AND DEVIATED LEFT OF CENTERLINE. APPROACH WARN ILLUMINATED. LANDED MANUALLY RWY 34L, ILS CLEAR ZONE APPEARED PROTECTED. GROUNDED - YES. C/W B737-900 FIM 22-11 TASK 899 INBOUND CONDITION RELATED TO AUTOLAND FIM, BITE GRP #20 FAULT REVIEW NO RELEVANT FAULTS IN DFCS FAULT HISTORY,C/W B737-900 AMM 22-11-00/201, BITE GRP #49, LAND VERIFY TEST. LAND VERIFY SUCCESSFUL. C/W FIM 34-36 TASK 899 IN-FLIGHT HGS CONDITION RELATED LANDING OR TAKEOFF FIM, SECTION 100, HGS FAULT ISOLATION, NO RELEVANT FAULTS LOGGED C/W HGS SYSTEM TEST REF SECTION 500 OF THE HGS-4000 SMM 34-36-00, NO FAULTS FOUND.