# SDR CALA2026042215620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2026
- Submitted: April 23, 2026
- Operation: Air carrier
- Aircraft: [N769UA](https://openairdocs.org/aircraft/N769UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26921
- Aircraft time: 110,351 hours, 20,203 cycles
- 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/CALA2026042215620

## Discrepancy

THE EMERGENCY LIGHT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY LOW ON THE DOOR 1L POWER SUPPLY M33093 REF TO HAECO NON-ROUTINE NO.9453342,  REPLACED POWER BATTERY PACK AT DOOR L1 (M33093) AND PERFORMED INSTALLATION TEST WAS NORMAL PER AMM 33-51-06-960-802 REV 106

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