SDR ASAA1159061

Service difficulty report · Unknown · Boeing 737890

Difficulty date: February 21, 2011
Submitted: February 23, 2011
Operation: Air carrier
Aircraft: N518AS
Make and model: Boeing 737890
Aircraft serial: 35693
Aircraft time: 7,561 hours, 2,240 cycles
System (JASC): 2160 · Cabin Temperature Control System
Part: Unknown
Condition: Malfunctioned
Location: Ac Bay
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

PUSHING RECALL BUTTON CAUSED LEFT PACK LIGHT TO COME ON. LIGHT WENT OUT BY PUSHING MASTER CAUTION BUTTON FOLLOWED QRH. PERF'D BITE TEST OF BOTH PACK/ZONE TEMP CONTROLLERS REF AMM 21 61 00. FOUND NR 1 CTRLR WITH PREV FLT "RAM AIR SENSOR" RED IND. FAULT LT ON. COMPLETED TEST AND FAULT LT EXTINGUISHED. RETESTED PER ABOVE REF BOTH OPS NORMAL. LEFT PACK LT REMAINS EXTINGUISHED UPON MASTER RECALL. GROUND FUNCT CHECK OPS NORMAL.