# SDR DALA2018041202381

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2018
- Submitted: April 12, 2018
- Operation: Air carrier
- Aircraft: [N924AT](https://openairdocs.org/aircraft/N924AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55080
- Aircraft time: 45,289 hours, 31,556 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Failed
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2018041202381

## Discrepancy

THE 1L DOOR EMERGENCY EXIT LIGHT WAS NOTED TO BE INOPERATIVE. MAINTENANCE FOUND THAT THE POWER SUPPLY FOR THE DOOR SIGN HAD FAILED AND THEY REPLACED PS B5-123 AND BATTERY PER AMM 33-51. OPERATIONAL CHECK WAS GOOD.

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