# SDR USAA2012122800017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2012
- Submitted: December 28, 2012
- Operation: Air carrier
- Aircraft: [N747UW](https://openairdocs.org/aircraft/N747UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1301
- Aircraft time: 33,093 hours, 21,719 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 38007081WGEN
- Part serial: P3323
- Condition: Faulty
- Location: Apu Bay
- Part time: 15,162 hours, 11,319 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012122800017

## Discrepancy

CREW REPORTED A STRONG OILY SMELL THROUGHOUT AIRCRAFT WHEN APU BLEED IS TURNED ON.  MAINTENANCE TROUBLESHOT CABIN AIR QUALITY PER J/C 26L00021001 AND FOUND SOURCE OF ODOR TO BE APU.  PERFORMED J/C 26L00021002, APU SMELL IN CABIN, AND FOUND APU BAD.  REMOVED AND REPLACED APU ASSEMBLY PER J/C 26L31049003.  OPS AND LEAK CHECK GOOD.  DECONTAMINATED ECS PER J/C 26L00021004.

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