# SDR CALA2025041703949

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2025
- Submitted: April 17, 2025
- Operation: Air carrier
- Aircraft: [N783UA](https://openairdocs.org/aircraft/N783UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26950
- Aircraft time: 113,114 hours, 14,821 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- 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/CALA2025041703949

## Discrepancy

M/D R1 DOOR M33094 EMERGENCY LIGHT POWER SUPPLY BATTERY PACK FOU ND OUT OF LIMIT DURING DEEP CYCLE TEST.   REPLACED M/G R1 DR M3309 4 EMERGENCY LIGHT POWER SUPPLY BATTERY PACK AND DO A TEST OF THE NEW BATTERY PACK FOR CAPACITY CHECK, THE TEST RESULT NORMAL, PER AMM 33-51-06-960-801 & 33-51-06-200-801 REV 103.

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