# SDR CALA2026061917199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 2026
- Submitted: June 19, 2026
- Operation: Air carrier
- Aircraft: [N57869](https://openairdocs.org/aircraft/N57869), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32593
- Aircraft time: 65,451 hours, 19,777 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Weak
- 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/CALA2026061917199

## Discrepancy

EMERGENCY BATTERY PACK M11488 IS WEAK AFTER EXTENSIVE TROUBLE SHOOTING.  REMOVED AND REPLACED EMERGENCY BATTERY PACK M11488 REF: AMM 33-51-07. OPS CHECK NORMAL.

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