# SDR DALA2026042902734

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2026
- Submitted: April 29, 2026
- Operation: Air carrier
- Aircraft: [N998AT](https://openairdocs.org/aircraft/N998AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55142
- Aircraft time: 60,490 hours, 43,902 cycles
- System (JASC): [4940 · APU Start/Ignition System](https://openairdocs.org/jasc/4940)
- Part: Ecu
- Condition: Failed
- Location: Apu
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026042902734

## Discrepancy

APU AUTO SHUTDOWN PROCESS BEGAN. RAN THE QRH WITH NO FIRE VISIBLE. APU WAS SHUT DOWN. THERE WAS AN ELECTRICAL SMELL IN THE AFT CABIN.   R/R APU ECU REF B717 AMM 49-61 (8304376) (AIRCRAFT GROUNDED)

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