SDR ASAA2015102913557

Service difficulty report · Control Valve · Boeing 737890

Difficulty date: October 29, 2015
Submitted: November 2, 2015
Operation: Air carrier
Aircraft: N516AS
Make and model: Boeing 737890
Aircraft serial: 39044
Aircraft time: 26,170 hours, 8,099 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Control Valve
Condition: Malfunctioned
Location: Lt A/C Pack
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

AFTER LANDING, LT PACK LIGHT CAME ON, WENT OUT PRESSING MASTER RECALL. ACFT GROUNDED. BITE CHECKS LT PACK TEMP CONTROLLER IAW FIM 21-62, TASK 801. THIS PACK TCV FAULT DISPLAYED, RESET FAULT. RAN LT PACK, OPS CHECK GOOD ON GROUND. RECALL CK CLEAR.