SDR ASAA2015122014351

Service difficulty report · Warning Message · Boeing 737890

Difficulty date: December 20, 2015
Submitted: December 22, 2015
Operation: Air carrier
Aircraft: N597AS
Make and model: Boeing 737890
Aircraft serial: 35689
Aircraft time: 29,552 hours, 9,128 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Warning Message
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 RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATES, GOES OUT WITH MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE REF AMM 21-61-00. NR 2 CONTROLLER LOGGED, FLT DECK TRIM VALVE, FAULT BUT DID NOT FAULT DURING VERIFY TEST. RESET FAULT, CABIN TEMP CONTROL, OPS NORMAL.