# SDR DLM88961043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N908DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49539
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Seal
- Condition: Leaking
- Location: Apu
- Part time: 3,000 hours
- Stage of operation: CL
- Nature of condition: B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88961043

## Discrepancy

ON CLIMB-OUT ABOUT 4,000 FEET, BOTH SMOKE ALARMS IN REAR OF A/C SOUNDED AND THERE WAS A LIGHT MIST/SMOKE VISIBLE IN THE A/C.  THE SMOKE ALARMS COULD NOT BE SILENCED BY FANNING TO VENTILATE BOTH HPS BLEEDS ON A/C.  PACKS TURNED OFF.  NO HELP.  CORRECTIVE ACTION FOUND APU LEAKING OIL IN EXHAUST AND BACK INTO A/C SYSTEM.  REPLACED OIL SEAL AND BURNED OUT DUCT.  OPS CHECK OK.

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