Service difficulty report · Autoland Sys · Boeing 737990ER

Difficulty date
July 26, 2021
Submitted
August 5, 2021
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
28,310 hours, 9,014 cycles
Part
Autoland Sys
Condition
Faulted
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

INFO ONLY AUTOLAND UNSUCCESSFUL, NO FLARE ARM *. GROUNDED - YES. ACCOMPLISHED FAULT ISOLATION TASK FOR INBOUND CONDITION RELATED TO AUTOLAND PER B737-900 FIM 22-11 TASK 899 - DFCS FAULT REVIEW SHOWED NO RELEVANT FAULTS ON EITHER FCC AND DFCS GROUP #49 (LAND VERIFY) TEST PER B737-900 AMM 22-11-00-700-801 - ALL TESTS PASS.