# SDR CALA2026021613804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 13, 2026
- Submitted: February 16, 2026
- Operation: Air carrier
- Aircraft: [N2639U](https://openairdocs.org/aircraft/N2639U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62650
- Aircraft time: 37,657 hours, 4,130 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: Discharged
- 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/CALA2026021613804

## Discrepancy

THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK(M33142) IN THE OFA R LOW CAPACITY REFER HAECO NON-ROUTINE LOG PAGE:9496088, REPLACED THE EMERGENCY LIGHT POWER SUPP LY BATTERY PACK(M33142) AND CARRIED OUT TEST,THE RESULT WAS NORM AL REF AMM 33-29-12-960-809 REV.106.

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