What was found
APU FAILED TO START, APU FAULT MESSAGE - ECU SHOWS LOP SHUTDOWN. FOUND DELTA P ON OIL PRESS FILTER POPPED REPLACED FILTER. RESET DELTA P, RAN APU NO FAULTS NOTED. (K)
- Difficulty date
- May 3, 2007
- Submitted
- May 8, 2007
- Operation
- Air carrier
- Aircraft
- N522AT
- Make and model
- Boeing 75723N
- Aircraft serial
- 29330
- Engine
- Rroyce RB211535E4
- System (JASC)
- 4990 · APU Oil System
- Part
- Filter
- Condition
- Dirty
- Location
- Apu Oil Sys
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.