SDR 2003UALA00826

Service difficulty report · Acm · Boeing 777222

Difficulty date: November 2, 2003
Submitted: December 2, 2003
Operation: Air carrier
Aircraft: N795UA
Make and model: Boeing 777222
Aircraft serial: 26927
Aircraft time: 26,247 hours, 4,078 cycles
Engine: Pwa PW4090
System (JASC): 2150 · Cabin Cooling System
Part: Acm
Condition: Seized
Location: Right
Stage of operation: CR
How discovered: O
Nature of condition: B
Precautionary procedure: J, A

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

What was found

RT AIR CYCLE MACHINE CMC MESSAGE AND SMOKE ODOR REPORTED IN CABIN. SMOKE & ODOR REPORT IN THE CABIN WAS DUE TO HAZE & ODOR OF HOT METAL RELEASED BY SEIZED RT ACM. SUSPECT RT ACM FAILURE WAS DUE TO CLOGGED RT COND/REHEATER. RT ACM & RT COND/REHEATER WERE REPLACED. RH ACM: HAM. STD P/N 810209-4, S/N: 950972, PTT: 25,922 HRS, PTC: 3,999. CONDITION: SEIZED. RT CONDENSER/REHEATER: HAM. STD P/N 810210-1, S/N: 9708173, PTT: 26,255 HRS, PTC: 4079. CONDITION: DIRTY.