# SDR CALA2026100720189

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2026
- Submitted: October 7, 2026
- Operation: Air carrier
- Aircraft: [N57016](https://openairdocs.org/aircraft/N57016), registered now
- Make and model: Boeing 777224
- Aircraft serial: 28679
- Aircraft time: 122,807 hours, 12,543 cycles
- Engine: Ge GE9094B
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Discharged
- 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/CALA2026100720189

## Discrepancy

THE MID EMERGENCY LIGHT POWER SUPPLY  BATTERY PACK (M33406) FOUND LOW CAPACITY .   REPLACED THE BATTERY PACK (M33406) AND CARRIED OUT OPERATION TEST. THE TEST WAS NORMAL IAW AMM 33-51-06-960-803, REV.108.

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