# SDR DLM88992647

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N911DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 49542
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Apu
- Condition: Leaking
- Location: Apu
- Part time: 7,507 hours
- Stage of operation: CR
- Nature of condition: K, B, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DLM88992647

## Discrepancy

DURING FLT, BURNING ODOR WAS NOTICED IN CABIN AND AFT LAV SMOKE DETECTOR WENT OFF.  A/C RETURNED TO DEN.  SUSPECT LEAK IN APU  SYSTEM.  DEACTIVATED APU.  PERFORMED DUCT BURN-OUT PER MM.  REPLACED COALESCER BAGS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.