What was found
APU OTBD SHUTDOWN INFLIGHT DUE TO AN OVER SPEED. AFTER TROUBLESHOOTING R & R APU FUEL CONTROL UNIT IAW AMM 49-11-000-801 & AMM 49-31-11-400-801. R & R APU ECU IAW AMM 49-61-12. OPERATIONS CHECKED GOOD.
- Difficulty date
- October 21, 2014
- Submitted
- October 21, 2014
- Operation
- Air carrier
- Aircraft
- N76288
- Make and model
- Boeing 737824
- Aircraft serial
- 33451
- Aircraft time
- 35,097 hours, 11,956 cycles
- System (JASC)
- 4930 · APU Engine Fuel and Control
- Part
- Fuel Control
- Part number
- 2118966222
- Part serial
- 0192
- Condition
- Faulty
- Location
- Apu
- Part time
- 49,106 hours, 17,212 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.