Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
March 24, 2016
Submitted
March 28, 2016
Operation
Air carrier
Aircraft
N492AS
Make and model
Boeing 737990ER
Aircraft serial
44110
Aircraft time
1,070 hours, 377 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

CONTROLLER CABIN "ZONE TEMP" ANNUNCIATES WHEN RECALL PRESSED. ACFT GROUNDED. PERFORMED BITE TEST ON BOTH NR 1 AND NR 2 TEMP ZONE CONTROLLERS, FOUND NR 1 CONTROLLER SRADA INLET LIGHT ON. NR 2 FOUND FLIGHT DECK TRIM VALVE LIGHT ON. PERFORMED ZONE TEMP ADJUSTMENT TEST IAW AMM 21-61-00. BOTH NR 1 AND NR 2 ZONE TEMP CONTROLLERS SYSTEM. OPS CHECKED GOOD.