# SDR DALA2017010400078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 2, 2017
- Submitted: January 5, 2017
- Operation: Air carrier
- Aircraft: N984DL
- Make and model: Doug MD-88
- Registry model: [Doug MD-88](https://openairdocs.org/model/mcdonnell-douglas-md-88) (OpenAirDocs)
- Aircraft serial: 53311
- Aircraft time: 66,449 hours, 47,632 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Condition: Contaminated
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017010400078

## Discrepancy

DURING THE BOARDING PROCESS, THE CREW NOTIFIED MAINTENANCE OF A BURNING SMELL IN THE CABIN. THE APU WAS RUNNING AND THE PACKS WERE BEING OPERATED TO WARM THE CABIN. MAINTENANCE FOUND THE APU INLET CONTAMINATED WITH DE-ICE FLUID. THE APU INLET AND DOOR ASSEMBLY WERE CLEANED. THE PNEUMATIC SMOKE/ODOR IN THE CABIN TROUBLESHOOTING WORK CARD WAS ACCOMPLISHED. A DUCT BURNOUT WAS PERFORMED AND THE COALESCER BAGS WERE REPLACED. THE AIRCRAFT WAS RETURNED TO SERVICE.

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