# SDR ASAA2024071551027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 2024
- Submitted: July 16, 2024
- Operation: Air carrier
- Aircraft: [N428AS](https://openairdocs.org/aircraft/N428AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36353
- Aircraft time: 30,688 hours, 9,547 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: Faulty
- Location: Main Cabin
- 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/ASAA2024071551027

## Discrepancy

M1670 EMERGENCY EXIT LIGHT BATTERY PACK & M2335 FOUND BAD AFFECTS L1507,L1210,L1506 AND L547,L6 AND L1515. GROUNDED - YES. REMOVED AND REPLACED M1670 AND M2335 EMERGENCY EXIT BATTERY PACK AND RESOLVED ALL AFFECTED LIGHTS OPS CHECK ALL NORMAL, REF AMM 33-51-06-960 & SSM 33-51-13.

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