# SDR DALA2021071604034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 2021
- Submitted: July 16, 2021
- Operation: Air carrier
- Aircraft: [N828NW](https://openairdocs.org/aircraft/N828NW), registered now
- Make and model: Airbus A330-302
- Registry model: [Airbus A330-302](https://openairdocs.org/model/airbus-a330-302) (OpenAirDocs)
- Aircraft serial: 1720
- Aircraft time: 18,515 hours, 2,292 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Ram Air Turb
- Condition: No Test
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021071604034

## Discrepancy

SHIP 3328 RAT FAILS TO AUTO DEPLOY DURING TEST. CORRECTIVE ACTION: FAILED VOLTAGE CHECK AT CONNECTOR 11JR-B. REMOVED AND REPLACED HSMU AND PERFORMED SUCCESSFUL OPERATIONAL TEST. (1876515)

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