Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
December 13, 2015
Submitted
December 15, 2015
Operation
Air carrier
Aircraft
N403AS
Make and model
Boeing 737990ER
Aircraft serial
41730
Aircraft time
12,378 hours, 3,978 cycles
Part
Warning Light
Condition
False Activation
Location
Cabin Temp
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

ZONE TEMP LIGHT ILLUMINATES ON RECALL BUT RESETS. ACFT GROUNDED. BITE OF NR 2 PACK/ZONE TEMP CONTROLLER LOGGED FAULT: FLT DECK TRIM VALVE, RESETS. FLT DECK TRIM VALVE OPS NORMAL. NO ZONE TEMP LIGHT ON RECALL, REF FIM 21-62, TASK 848.