SDR ASAA2014101909427

Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date: October 19, 2014
Submitted: October 22, 2014
Operation: Air carrier
Aircraft: N469AS
Make and model: Boeing 737990ER
Aircraft serial: 41702
Aircraft time: 627 hours, 188 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Warning Light
Condition: False Activation
Stage of operation: TX
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 TEMPERATURE ILLUMINATED ON RECALL. ACFT GROUNDED. ACCOMPLISHED CABIN TEMP CONTROLLER BITE, REF FIM 21-62 TASK 801. FOUND FLIGHT DECK TRIM VALVE FAULT ON THE NR 2 CONTROLLER, FAULT RESET, INDICATES NUISANCE FAULT. GROUND VERIFIED GOOD, NO HISTORY PAST 30 DAYS.