# SDR AALA20160602004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2016
- Submitted: June 2, 2016
- Operation: Air carrier
- Aircraft: [N970TW](https://openairdocs.org/aircraft/N970TW), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53620
- Aircraft time: 45,919 hours, 22,293 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: AAP3701A
- Part serial: P3055
- Condition: Leaking
- Location: Zone 100
- Part time: 31,085 hours, 14,921 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20160602004

## Discrepancy

REPORTS OILY ODOR WHEN APU STARTED AT GATE.  ACCOMPLISHED CARD 21-96-01 & FOUND APU OIL LEAK.   REMOVED AND REPLACED AUXILIARY POWER UNIT IAW MCM 49-96-83.  OPERATIONAL CHECKED GOOD.  AIRCRAFT WAS GROUNDED.

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