Service difficulty report · Filter · Boeing 747422

Difficulty date
February 28, 2011
Submitted
March 17, 2011
Operation
Air carrier
Aircraft
N181UA
Make and model
Boeing 747422
Aircraft serial
25278
Aircraft time
81,728 hours, 10,019 cycles
Engine
Pwa PW4056
Part
Filter
Condition
Dirty
Location
Cabin
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

IN COACH CABIN, THE CABIN TEMPERATURES FLUCTUATE WILDLY BETWEEN TOO HOT AND TOO COLD. CLEANED CABIN FILTERS. SYSTEM TESTED GOOD.