Service difficulty report · Controller · Boeing 757222

Difficulty date
March 20, 2010
Submitted
March 22, 2010
Operation
Air carrier
Aircraft
N547UA
Make and model
Boeing 757222
Aircraft serial
25368
Aircraft time
68,454 hours, 19,946 cycles
Engine
Pwa PW2037
Part
Controller
Part number
211734220
Part serial
15
Condition
Faulty
Location
Apu
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

NO PNEUMATIC PRESSURE WITH APU RUNNING AND VALVE OPEN. APU BLEED VALVE OPENS AND CLOSES NORMALLY. REPLACED APU CONTROLLER. CHECKS GOOD.