# SDR DALA2025020500883

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 5, 2025
- Submitted: February 5, 2025
- Operation: Air carrier
- Aircraft: [N971AT](https://openairdocs.org/aircraft/N971AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55032
- Aircraft time: 60,975 hours, 43,146 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Lamp
- Condition: Failed
- Location: Zone 200
- 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/DALA2025020500883

## Discrepancy

THE LEFT AND RIGHT EXTERIOR EMERGENCY LIGHTS DIM WITH THE SWITCH OFF. THE SYSTEM WAS DEFERRED PER MEL 33-51-02A AND PLACARDS WERE INSTALLED. MAINTENANCE VERIFIED 2232 LAMPS WERE INSTALLED PER B-717 IPC 33-50-30-01 ITEM #130J. (NOTE: LEFT LAMP IS BAD, NASI BWI). SUSPECT BAD BATTERY IN POWER SUPPLY B5-125 CAUSING UNCOMMANDED ILLUMINATION.  R&R EXTERIOR EMERGANCY LIGHTS POWER SUPPLY AND BATTERY PER B717 AMM 33-51. OP CHECK NORMAL.  (LP #6397171)

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