Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
January 6, 2019
Submitted
January 8, 2019
Operation
Air carrier
Aircraft
N403AS
Make and model
Boeing 737990ER
Aircraft serial
41730
Aircraft time
24,629 hours, 8,101 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
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

CONT CABIN ZONE TEMP LIGHT ILLUMINATES ON RECALL. EXTINGUISHES WHEN MASTER CAUTION IS RESET. GROUNDED - YES. FLT DECK PRIMARY TEMP CONTROL INOP. ZONE TEMP CONT 2 LOGGED FLT DK TRIM VLV FAULT. CLEARED FAULT AND ACCOMP CONT BITE CK 3 TIMES. ALL SUCCESSFUL GREEN LT. SYS OPS CK NORMAL AT THIS TIME REF AMM 21-61-00.