# SDR DALA2024102810478

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2024
- Submitted: October 28, 2024
- Operation: Air carrier
- Aircraft: [N420DX](https://openairdocs.org/aircraft/N420DX), registered now
- Make and model: Airbus A330-941
- Registry model: [Airbus A330-941](https://openairdocs.org/model/airbus-a330-941) (OpenAirDocs)
- Aircraft serial: 2021
- Aircraft time: 8,996 hours, 1,013 cycles
- System (JASC): [5270 · Door Warning System](https://openairdocs.org/jasc/5270)
- Part: Power Supply
- Part number: 321492
- Part serial: 003831
- Condition: Faulty
- Location: Zone 200
- Part time: 36,031 hours, 4,521 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/DALA2024102810478

## Discrepancy

SHIP 3420 ASPSU FAILED BITE TEST WITH FAULT ASPSU (101MJ) DOOR 1. CORRECTIVE ACTION: R/R ASPSU PER A330 AMM 52-71. OK FOR SERVICE. (0628222)

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