# SDR DALA2026042202564

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 19, 2026
- Submitted: April 22, 2026
- Operation: Air carrier
- Aircraft: [N927AT](https://openairdocs.org/aircraft/N927AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55077
- Aircraft time: 59,028 hours, 43,362 cycles
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Engine
- Condition: Failed
- Location: Apu
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026042202564

## Discrepancy

SMKE/FUME - PRIOR TO PUSH, CREW REPORTED WHITE HAZY SMOKE AND AN OIL SMELL IN THE CABIN FOLLOWED BY A HARD CLUNK AND AN APU AUTO SHUTDOWN. RAMP REPORTED FLAMES IN APU EXHAUST.   FOUND APU CHIP DETECTOR FULL OF METAL AND SUSPECTED APU INTERNAL FAILURE. APU REPLACED. PERFORMED ECS DUCT BURN AND COALESCER BAG REPLACEMENT. OPS CHECKS OK. NO FURTHER SMELL OR ODORS FOUND. RTS.(1551774) (AIRCRAFT GROUNDED)

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