- Difficulty date
- February 23, 2012
- Submitted
- February 27, 2012
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35681
- Aircraft time
- 17,454 hours, 5,287 cycles
- Part
- Apu
- Part number
- 38007021
- Part serial
- P7544
- Condition
- Overspeed
- Location
- Apu Bay
- Part time
- 3,186 hours, 5,195 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU OVERSPEED LIGHT ILLUMINATED ON CLIMBOUT AT FL 290 NON ETOPS AIRSPACE. DIVERSION TIME: 14 MINUTES.PERFORMED APU BITE FOUND MAINT MESSAGE 49 31014 APU OVERSPEED 2 OCCURENCES. REPLACED APU ASSY PER TASK CARD 78349001 & AMM 49 11 00 APU OPS & LEAK CK OK.