SDR ASAA2016091318003

Service difficulty report · Warning System · Boeing 737990ER

Difficulty date: September 13, 2016
Submitted: September 19, 2016
Operation: Air carrier
Aircraft: N459AS
Make and model: Boeing 737990ER
Aircraft serial: 36352
Aircraft time: 10,031 hours, 3,263 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Warning System
Condition: False Activation
Location: Cockpit
Stage of operation: NR
How discovered: O
Nature of condition: N
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING MASTER CAUTION RECALL CONTINUED, CAB ZONE TEMP LIGHT ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED BOTH PACK/ZONE TEMPERATURE CONTROLLERS BITE TEST, NR 2 LOGGED FLIGHT DECK TRIM VALVE AS A FAULT, RESET FAULT, SYS OPS NORMAL, REF AMM 21-61-00-700-806-002.