# SDR CALA2026031314555

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2026
- Submitted: March 13, 2026
- Operation: Air carrier
- Aircraft: [N2136U](https://openairdocs.org/aircraft/N2136U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 62648
- Aircraft time: 38,473 hours, 4,165 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: D71701100
- Condition: Broken
- 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/CALA2026031314555

## Discrepancy

THE PIN OF THE EMERGEN LIGHT POWER SUPPLY BATTERY PACK (M33118) IN OFCR FND BROKEN.  REPLACED THE EMERGENCY LIGHT POWER SUPPLY BATTERY PACK (M33118) IN THE OFCR AND CARRIED OUT INSTALLATION TEST, THE RESULT WAS NORMAL IAW AMM 33-29-10-960-810, REV.106.

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