# SDR DALA2026030501536

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2026
- Submitted: March 5, 2026
- Operation: Air carrier
- Aircraft: [N411DX](https://openairdocs.org/aircraft/N411DX), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 1991
- Aircraft time: 22,047 hours, 2,583 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 32146210
- Part serial: 176163
- Condition: Failed
- Location: Zone 200
- Part time: 22,047 hours, 2,583 cycles
- 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/DALA2026030501536

## Discrepancy

SHIP 3411 EMERGENCY LIGHT TEST FAILS ON SERVICE CHECK. CORRECTIVE ACTION: REMOVED AND REPLACED EPSUS AT 12WL AND 17WL PER A330 AMM 33-51- 38. OPS CHECK GOOD. (1479944)

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