SDR UALA2012091205143

Service difficulty report · Oil System · Boeing 767322

Difficulty date: September 10, 2012
Submitted: September 28, 2012
Operation: Air carrier
Aircraft: N666UA
Make and model: Boeing 767322
Aircraft serial: 29238
Aircraft time: 51,271 hours, 13,665 cycles
Engine: Pwa PW4056
System (JASC): 4990 · APU Oil System
Part: Oil System
Condition: Overserviced
Location: Apu
Stage of operation: NR
How discovered: O
Nature of condition: W
Precautionary procedure: O

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

What was found

LCL MAINT REPORTS: APU AUTO SHUT-DOWN TWICE. AFTER 1ST SHUT-DOWN RESTARTED AND OPERATED FOR APPROX 10 MINUTES, THEN AUTO SHUT-DOWN AGAIN. BITE TEST APU CONTROLLER, OIL PRESSURE FAULT, APU OVERSERVICED, DRAINED TO PROPER LEVEL APU OK FOR SERVICE.