# SDR CALA2025072406873

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2025
- Submitted: July 24, 2025
- Operation: Air carrier
- Aircraft: [N61898](https://openairdocs.org/aircraft/N61898), registered now
- Make and model: Boeing 737924ER
- Aircraft serial: 62815
- Aircraft time: 26,885 hours, 10,137 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- Location: Zone 200
- 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/CALA2025072406873

## Discrepancy

EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK.  EMERGENCY LIGHTS NOT WORKING LEFT SIDE ON OVERWING EXIT ROWS.  REMOVED AND REPLACED M1694 POWER SUPPLY BATTERY PACK AS REQUIRED IAW AMM 33-51-06-960-805, OPS CHECKED GOOD.

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