SDR ASAA2016011014713

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: January 10, 2016
Submitted: January 12, 2016
Operation: Air carrier
Aircraft: N532AS
Make and model: Boeing 737890
Aircraft serial: 36346
Aircraft time: 21,776 hours, 6,571 cycles
System (JASC): 2160 · Cabin Temperature Control System
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

CABIN CONTROLLER ZONE TEMP ILLUMINATES ON RECALL, GOES OUT ON MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISHED ZONE TEMP CONTROLLER BITE IAW FIM 21-62-801, RT CONTROLLER SHOWED FLT DECK TRIM VALVE FAULT FOR PREVIOUS FLIGHT. CLEARED FAULT, OPERATED PACKS, PZTC BITE SHOWED NO FAULTS. NO HISTORY 60 DAYS. GROUND VERIFICATION SUCCESSFUL.