# SDR TRBA2011022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2011
- Submitted: February 21, 2011
- Operation: Air carrier
- Aircraft: [N499AT](https://openairdocs.org/aircraft/N499AT), registered now
- Make and model: Aerosp ATR 72-212A
- Registry model: [Aerosp ATR 72-212A](https://openairdocs.org/model/aerospatiale-atr-72-212a) (OpenAirDocs)
- Aircraft serial: 499
- Aircraft time: 22,230 hours, 26,301 cycles
- Engine: Pwa PW127
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 3013100
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TRBA2011022

## Discrepancy

FWD EMERGENCY LIGHTS (INTERIOR) WILL NOT STAY ON.  R & R BATT PACK ON POWER SUPPLY FIN NR 43WL IAW W/C 335121, RAI 10010-007.  OP CHECK IAW W/C 335000-OPT-10000-002. FOUND GOOD.

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