SDR ASAA2013031994205

Service difficulty report · A/C Pack · Boeing 737890

Difficulty date: March 19, 2013
Submitted: March 22, 2013
Operation: Air carrier
Aircraft: N565AS
Make and model: Boeing 737890
Aircraft serial: 35181
Aircraft time: 24,047 hours, 7,389 cycles
System (JASC): 2150 · Cabin Cooling System
Part: A/C Pack
Condition: Malfunctioned
Location: Left
Stage of operation: CR
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

LEFT PACK BLEED TRIP AT FL 400, RESET ONCE, BLEED TRIP HAPPENED AGAIN, RESET A SECOND TIME, LIGHT STAYED OUT. PERFORMED BLEED TRIP OFF LIGHT ON, FAULT ISOLATION IAW FIM TASK 36-10 TASK 801. PREFORMED PRELIMINARY CHECKS, FAULT ISOLATION PROCEDURES AND REPAIR CONFIRMATION TASK. NO DEFECTS NOTED.