Service difficulty report · Warning Message · Boeing 737990ER

Difficulty date
May 30, 2018
Submitted
May 31, 2018
Operation
Air carrier
Aircraft
N477AS
Make and model
Boeing 737990ER
Aircraft serial
40716
Aircraft time
11,905 hours, 3,891 cycles
Part
Warning Message
Condition
False Activation
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

AUTO FAIL LIGHT ILLUMINATED DURING TAXI OFF RUNWAY. ALTERNAT LIGHT ILLUMINATED. ACFT GROUNDED. PERFORMED FIM 21-31 TASK 827. AUTO FAIL LIGHT ON FAULT ISOLATION. AUTO FAIL LIGHT EXTINGUISHED, GROUND VERIFICATION SUCCESSFUL.