What was found
APU GENERATOR FAILED INTERNALLY CAUSING DAMAGE TO THE GENERATOR SCAVENGE PUMP. BOTH UNITS WERE REPLACED WHICH PLACED THE APU BACK IN SERVICE.
- Difficulty date
- December 25, 2020
- Submitted
- December 30, 2020
- Operation
- Air carrier
- Aircraft
- N888LT
- Make and model
- Boeing 757230
- Aircraft serial
- 25441
- Aircraft time
- 73,374 hours, 24,036 cycles
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Generator
- Part number
- 717810C
- Part serial
- 1760
- Condition
- Failed
- Location
- Apu
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.