What was found
APU AUTO SHUTDOWN. RAPID EGT RISE 775-790, THEN AUTO SHUTDOWN AFTER RPM STABILIZED AT 22. REPLACED APU CONTROL UNIT AS PER AMM. APU STARTS AND OPERATES NORMALLY.
- Difficulty date
- April 17, 2013
- Submitted
- May 1, 2013
- Operation
- Air carrier
- Aircraft
- N669UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30025
- Aircraft time
- 50,054 hours, 12,678 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 4960 · APU Controls
- Part
- Control Unit
- Part number
- 211734220
- Part serial
- 117A0356
- Condition
- Failed
- Location
- Apu
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- M, J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.