# SDR AT0500003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2005
- Submitted: January 14, 2005
- Operation: Air carrier
- Aircraft: [N978AT](https://openairdocs.org/aircraft/N978AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55037
- System (JASC): [4950 · APU Bleed Air System](https://openairdocs.org/jasc/4950)
- Part: Apu
- Part number: 4502423A
- Part serial: SPE0110118
- Condition: Odor
- Location: Apu Bay
- 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/AT0500003

## Discrepancy

AFTER APU START, INTRODUCED APU AIR, SMELLED ACRID PLACTIC SMELL AND CABIN STARTED FILLING WITH SMOKE.  RAMP CREW REPORTED SEEING SMOKE AROUND TAIL AND HEARD A LOUD POP.  REMOVED AND REPLACED APU.

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