# SDR DALA2017040202733

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 1, 2017
- Submitted: April 4, 2017
- Operation: Air carrier
- Aircraft: N331NW
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 318
- Aircraft time: 74,943 hours, 34,034 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Apu
- Stage of operation: NR
- 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/DALA2017040202733

## Discrepancy

A/C PACK SCRUBBER HAD A BAD ODOR EMITTING DURING DESCENT, CHANGED RECIRCULATION FILTERS, REPLACED NR 1 OZONE CONVERTER, HISTORY OF APU OIL CONSUMPTION, LEAK CHECKED APU & FOUND OIL LEAK AT APU OIL FILTER DELTA P SWITCH,  REPLACED DPI SWITCH.

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