# SDR TRBA201128003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 5, 2011
- Submitted: October 7, 2011
- Operation: Air carrier
- Aircraft: [N431](https://openairdocs.org/aircraft/N431), registered now
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 431
- Aircraft time: 30,030 hours, 32,959 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Emergency Light
- 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/TRBA201128003

## Discrepancy

EMERGENCY LIGHTS TURN ON WHEN THE SWITCH IS IN THE ARM POSITION.   R & R BATTERY PACK, FIN 61WLA IAW JIC 33-51-21.  OPS CHECKED AND FOUND WORKING PROPERLY IAW EX-335000 OPT 100000-01.

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