SDR DALA2018040902299

Service difficulty report · Acm · Boeing 757232

Difficulty date: April 9, 2018
Submitted: April 9, 2018
Operation: Air carrier
Aircraft: N682DA
Make and model: Boeing 757232
Aircraft serial: 26958
Aircraft time: 79,751 hours, 36,001 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Acm
Condition: Damaged
Location: Left
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

AIR TURNBACK TO DEPARTURE, DUE TO PRESSURIZATION ISSUE. LEFT PACK ON MEL, OUTFLOW VALVE SHOWING FULL CLOSED. REPLACED THE NR 1 AUTO CONTROLLER, FOUND LINE INTO RT PACK HEAT EXCHANGER CRACKED AND FOUND O-RING ON REHEATER LEAKING. LT PACK REPLACED, REHEATER AND TEMP CONTROL VALVE OP CHECKED GOOD.