Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
March 16, 2015
Submitted
March 18, 2015
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
7,653 hours, 2,491 cycles
Part
Warning Light
Condition
False Activation
Location
Master Caution
Stage of operation
NR
How discovered
9
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 CONTROLLER CAB ZONE TEMP LIGHT ILLUMINATED. EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED. RESET NR 2 CONTROLLER FLT DECK TRIM VALVE FAULT. BITE TEST PASS IAW MM 21-61-00. GROUND VERIFICATION SUCCESSFUL.