# SDR AALA201908029006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2019
- Submitted: August 2, 2019
- Operation: Air carrier
- Aircraft: [N965TW](https://openairdocs.org/aircraft/N965TW), registered now
- Make and model: Doug MD 83
- Registry model: [Doug MD 83](https://openairdocs.org/model/mcdonnell-douglas-md-83) (OpenAirDocs)
- Aircraft serial: 53615
- Aircraft time: 54,762 hours, 28,114 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: No Test
- Location: Emergency Lights
- 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/AALA201908029006

## Discrepancy

AIRCRAFT WAS GROUNDED: UPON PRE-FLIGHT, FOUND THAT EMERGENCY EXIT LIGHTS ON THE OVERHEAD PANEL WOULD NOT ILLUMINATE DURING POWER CHANGES OR WITH THE EMERGENCY LIGHT SWITCH IN THE ON POSITION. MAINTENANCE FOUND BATTERY PACK B5-103 BAD AND REPLACED BATTERY PACK PER AMM 33-53-00.

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