# SDR DALA2026010600102

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2026
- Submitted: January 6, 2026
- Operation: Air carrier
- Aircraft: [N529DN](https://openairdocs.org/aircraft/N529DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0735
- Aircraft time: 2,587 hours, 205 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- 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/DALA2026010600102

## Discrepancy

DISPATCH MSG- EMERGENCY EXIT LIGHT. INSPECTED AND FOUND FAULT CODE 3350F00Q. REMOVED AND REPLACED EMER BATTERY FOR EPSU 102WL2 IAW AMM A350-33-51-32. OPS CK GOOD. (LP# 8399754)

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