Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
January 19, 2018
Submitted
January 23, 2018
Operation
Air carrier
Aircraft
N448AS
Make and model
Boeing 737990ER
Aircraft serial
36356
Aircraft time
7,187 hours, 2,447 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
CR
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 IN CRUISE ALTN CONTROLLER WORKED NORMALLY. GROUNDED - YES. COMPLIED WITH FIM 21-31 TASK 827, NO FAULTS NOTED, FAULTS CLEARED. COMPLIED WITH DCPC BITE IAW FIM 21-31 TASK 801, NO CURRENT FAULTS OPS CHECK GOOD. OK TO CONTINUE.