What was found
AIRCRAFT WAS GROUNDED. FLIGHT CREW REPORTED ACRID AND MUSTY SMELL. MAINTENANCE FOUND APU OIL SYSTEM OVER SERVICED CORRECTLY SERVICED APU OIL AND CLEANED PLENUM AND SURFACES. RAN ENGINES WITH NO ODORS BEING NOTED.
- Difficulty date
- January 2, 2021
- Submitted
- January 4, 2021
- Operation
- Air carrier
- Aircraft
- N551UW
- Make and model
- Airbus A321231
- Aircraft serial
- 4940
- Aircraft time
- 30,750 hours, 11,562 cycles
- System (JASC)
- 4990 · APU Oil System
- Part
- Oil System
- Condition
- Overserviced
- Location
- Apu
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- W, B
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.