Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
May 11, 2016
Submitted
May 13, 2016
Operation
Air carrier
Aircraft
N481AS
Make and model
Boeing 737990ER
Aircraft serial
44106
Aircraft time
2,938 hours, 962 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

ON MASTER CAUTION RECALL, 3 ZONE TEMP LIGHTS ON, RESET WHEN MASTER CAUTION RECALL RESET. ACFT GROUNDED. ACCOMPLISHED PACK TEMP BITE PROCEDURE REF FIM 21-62-801, NR 1 AND NR 2 CONTROLLERS LOGGED FLT DECK TRIM AND CABIN TRIM VALVE FAULTS. ALL FAULTS RESET ON COMPLETION OF TEMP CONTROLLER RESET. GROUND VERIFICATION CHECKS NORMAL.