Service difficulty report · Controller · Boeing 757222

Difficulty date
July 27, 2009
Submitted
July 29, 2009
Operation
Air carrier
Aircraft
N597UA
Make and model
Boeing 757222
Aircraft serial
28750
Aircraft time
41,532 hours, 11,563 cycles
Engine
Pwa PW2037
Part
Controller
Part number
S210T13077
Part serial
83
Condition
Faulty
Location
Ac Bay
Stage of operation
NR
How discovered
O
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

MASTER TRIM AIR VALVE APPEARS INOP, ALL 3 ZONES FLT DECK, FWD CABIN, AFT CABIN TRIM AIR INDICATOR INOP WITH TRIM AIR SWITCH SELECTED ON. PACK MAINTAINING 75 DEGREES. REPLACED CONTROLLER AND OPS CHECK OKAY.