Service difficulty report · Controller · Boeing 757222

Difficulty date
November 25, 2013
Submitted
November 26, 2013
Operation
Air carrier
Aircraft
N548UA
Make and model
Boeing 757222
Aircraft serial
25396
Aircraft time
82,784 hours, 23,791 cycles
Engine
Pwa PW2040
Part
Controller
Part number
211738813
Part serial
253
Condition
Faulty
Location
Cabin Pressure
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

AUTO PRESSURIZATION CONTROLLER SELECTOR NR 1 & NR 2 INOPERATIVE, FLT DIVERTED. ACCOMPLISHED VAC PRESS RELIEF VLV TEST. REPLACED NR 1 AUTO PRESSURIZATION CONTROLLER IAW MM.