What was found
APU AUTO SHUTDOWN DUE TO OVERSPEED DURING FLIGHT, EMER DECLARED. ADJUSTED APU ENG SPEED IAW AMM 49-11-00. R & R APU CONTROL UNIT IAW 49-61-11. R & R ELECTRONIC SPEED SWITCH IAW 49-61-22. R & R APU FUEL CONTROL UNIT IAW 49-31-11.
- Difficulty date
- October 10, 2014
- Submitted
- October 15, 2014
- Operation
- Air carrier
- Aircraft
- N842AL
- Make and model
- Boeing 737290C
- Aircraft serial
- 23136
- Aircraft time
- 70,524 hours, 73,167 cycles
- System (JASC)
- 4960 · APU Controls
- Part
- Control Unit
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- H
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.