Service difficulty report · Actuator · Boeing 747422

Difficulty date
July 28, 2012
Submitted
August 28, 2012
Operation
Air carrier
Aircraft
N171UA
Make and model
Boeing 747422
Aircraft serial
24322
Aircraft time
86,459 hours, 10,246 cycles
Engine
Pwa PW4056
Part
Actuator
Part number
DL2033M42
Part serial
120
Condition
Failed
Location
Apu Doors
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

ON PUSHBACK, APU INLET DOOR ADVISORY AND STATUS MESSAGE. FOUND APU DOOR IS PARTIALLY OPENED. INSTALLED NEW ACTUATOR.