# SDR AALA20050259

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2005
- Submitted: April 14, 2005
- Operation: Air carrier
- Aircraft: N7547A
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 53029
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Seal
- Condition: Leaking
- Location: Apu
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20050259

## Discrepancy

SJC - CABIN BEGAN FILLING WITH SMOKE SHORTLY AFTER TAKEOFF.  RETURNED TO SJC AND LANDED WITHOUT INCIDENT.  FOUND APU OIL COOLER SEAL LEAKING.  REPLACED APU OIL COOLER SEAL.  SYSTEM GROUND CHECKED NORMAL OPERATION.

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