Service difficulty report · Pressure Switch · Boeing 757222

Difficulty date
August 15, 2012
Submitted
August 17, 2012
Operation
Air carrier
Aircraft
N547UA
Make and model
Boeing 757222
Aircraft serial
25368
Aircraft time
77,127 hours, 22,504 cycles
Engine
Pwa PW2037
Part
Pressure Switch
Condition
Faulty
Location
Apu Oil Sys
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

REPLACED APUC AND STARTED APU, BUT AUTO SHUTDOWN FOR LOW OIL PRESSURE. REPLACED LOW OIL PRESSURE SWITCH AND RESTORED APU OPERATIONS.