# SDR ASAA2023070743933

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2023
- Submitted: July 11, 2023
- Operation: Air carrier
- Aircraft: [N495AS](https://openairdocs.org/aircraft/N495AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41728
- Aircraft time: 27,399 hours, 8,546 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- Location: Main Passenger C
- 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/ASAA2023070743933

## Discrepancy

L2 DOOR EXTERIOR EMERGENCY LIGHT DOES NOT ILLUMINATE. GROUNDED - YES. REMOVED AND REPLACED AFT CEILING PANEL BATTERY PACK FOR LEFT SIDE EMERGENCY LIGHT POWER REF AMM 33-51-06. OPERATIONAL CHECK IS GOOD.

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