# SDR CALA2026081418607

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2026
- Submitted: August 14, 2026
- Operation: Air carrier
- Aircraft: [N77539](https://openairdocs.org/aircraft/N77539), registered now
- Make and model: Boeing 737824
- Aircraft serial: 63642
- Aircraft time: 27,357 hours, 10,366 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Faulted
- Location: Zone 200
- 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/CALA2026081418607

## Discrepancy

EMERGENCY LIGHT BATTERY PACK M1694 HAS LOW VOLTAGE. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK M1694 AND OPS CHECKED GOOD IAW AMM 33-51-06-960-805.

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