SDR ASAA1159683

Service difficulty report · Unknown · Boeing 737890

Difficulty date: May 23, 2011
Submitted: May 25, 2011
Operation: Air carrier
Aircraft: N518AS
Make and model: Boeing 737890
Aircraft serial: 35693
Aircraft time: 8,554 hours, 2,566 cycles
System (JASC): 2150 · Cabin Cooling 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

AFTER ENGINE START IN PDX LEFT PACK LIGHT ILLUMINATED. CALLED MAINTENANCE CONTROL INSTRUCTED TO PERFORM OPERATION PROCEDURES FOR MEL 21 32B. THE PACK LIGHT EXTINGUISHED WHEN RESET AND NO OTHER LIGHTS ILLUMINATED. LEFT PACK LIGHT ONLY ILLUMINATED ON RECALL AND CAN BE RESET. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST PER AMM 21 61 00 AND RESET CONTROLLER. SYSTEM OP CHECKS GOOD, NO DEFECTS NOTED NO HISTORY IN THE LAST 90 DAYS.