Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
April 26, 2018
Submitted
April 30, 2018
Operation
Air carrier
Aircraft
N486AS
Make and model
Boeing 737990ER
Aircraft serial
44107
Aircraft time
10,482 hours, 3,501 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 NOT SUCCESSFUL, AIRCRAFT LANDED 50FT LEFT OF CENTERLINE. ACFT GROUNDED. ACCOMPLISHED FIM 22-11 TASK 825. PERFORMED LAND VERIFY TEST IAW AMM 22-11-00. ALL TESTS PASSED. NO FAULTS FOUND. ACCOMPLISHED AUTOPILOT CURRENT STATUS IAW AMM 22-11-00-740-801. NO FAULTS FOUND. ACCOMPLISHED BITE LIBRARY TEST IAW AMM 22-11-00-740-806. ALL LIBRARY TESTS, CHANNELS A & B. FLIGHT CONTROL COMPUTER INSTALLATION, IAW AMM 22-11-33-400-801 / 22-11-33-740-001. LRU REPLACEMENT TEST FOR FCC. ALL TESTS PASSED. ACCOMPLISHED DIGITAL FLIGHT CONTROL SYSTEM (DFCS) BITE PROCEDURE, 22-11 / 801, BITE GRP 20, FAULT REVIEW. DIGITAL FLIGHT CONTROL SYSTEM, MAINTENANCE PRACTICES, AMM 22-11-00 / 201, BITE GRP 49, LAND VERIFY TEST. ALL TESTS PASSED.