# SDR DALA2023062205062

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 19, 2023
- Submitted: June 22, 2023
- Operation: Air carrier
- Aircraft: [N401DZ](https://openairdocs.org/aircraft/N401DZ), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 1915
- Aircraft time: 14,497 hours, 1,689 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023062205062

## Discrepancy

AIRCRAFT 3401, DURING L3 SLIDE CHANGE LIGHT TEST FAULTED 335111 EMER LT/EPSU 16WL. CORRECTIVE ACTION: REPLACED EPSU AND BATTERY PER A330 AMM 33-51 OP CHECK NORMAL OK FOR SERVICE. (LP 4942924)

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