# SDR 2003F00342

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2002
- Submitted: May 29, 2003
- Operation: Air carrier
- Aircraft: [N539PA](https://openairdocs.org/aircraft/N539PA), registered now
- Make and model: Bag JETSTM3101
- Aircraft serial: 741
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 311701
- Condition: Discharged
- 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/2003F00342

## Discrepancy

PSM - FLT 3505 - DURING PREFLIGHT, CREW REPORTED EMERGENCY LIGHTS INOPERATIVE.  REMOVED AND REPLACED ALL FOUR EMERGENCY EVACUATION POWER SUPPLIES DUE TO LOW VOLTAGE, DUE TO BEING INADVERTENELY LEFT ON FOR A LONG PERIOD OF TIME.  (M)

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