What was found
APU AUTO SHUTDOWN. APUC BITE TEST SHOWED LOP. REPLACED LOW OIL PSI SWITCH. REPLACED APU DEOIL SOLENOID AND FLOW SENSING MODULE-NO HELP. FOUND DIFFERENTIAL PRESS IND POPPED FOR GENERATOR LUBE FILTER.
- Difficulty date
- July 18, 2012
- Submitted
- August 17, 2012
- Operation
- Air carrier
- Aircraft
- N652UA
- Make and model
- Boeing 767322
- Aircraft serial
- 25390
- Aircraft time
- 87,148 hours, 13,896 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 4990 · APU Oil System
- Part
- Pressure Switch
- Part number
- 1103P1341
- Part serial
- 146
- Condition
- Failed
- Location
- Apu Oil
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.