# SDR DLM88991446

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 27, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N947DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49878
- System (JASC): [4910 · APU Cowling/Containment](https://openairdocs.org/jasc/4910)
- Part: Apu
- Part number: 38005041
- Condition: Inoperative
- Location: Aux
- Stage of operation: CL
- Nature of condition: B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88991446

## Discrepancy

AT 24,000 FT ON CLIMBOUT, A SLIGHT HAZE APPEARED IN THE CABIN AND BOTH AFT SMOKE DETECTORS WENT OFF.  APU HAD BEEN OFF FOR 10-15 MINS.  LEVELED OFF AND RETURNED TO ATL.  PERFORMED DUCT BURNOUT.  REPLACED COALESCERS, CLEANED APU INLET.

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