SDR UPS06448292

Service difficulty report · A/C Pack · Boeing 747200

Difficulty date: October 20, 2006
Submitted: October 23, 2006
Operation: Air carrier
Aircraft: N523UP
Make and model: Boeing 747200
Aircraft serial: 22381
System (JASC): 2150 · Cabin Cooling System
Part: A/C Pack
Condition: Odor
Location: Nr 3
Stage of operation: NR
How discovered: 9
Nature of condition: B
Precautionary procedure: O

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

What was found

INSPECTION TYPE:N/A NR 3 PACK OVERHEATS, ALSO BURNING SMELL. TRIPS RESET, TRIPPED AGAIN. NR 3 PACK AUTO FEATURE DEFERRED PER MEL 21-6-1, BYPASS VALVE GOES TO FULL HOT IN AUTO. R/R PACK TEMP CONTROLLER PER 21-62-06. OPS CK NORMAL. THIS CLEARS M336046.

More about the Boeing 747-200