# SDR CA011209002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 29, 2001
- Submitted: February 5, 2002
- Operation: General aviation
- Make and model: Airbus A330-342
- Registry model: [Airbus A330-342](https://openairdocs.org/model/airbus-industrie-a330-342) (OpenAirDocs)
- Aircraft time: 12,848 hours
- Engine: Rroyce RB211TRENT77
- System (JASC): [3251 · Steering Unit](https://openairdocs.org/jasc/3251)
- Part: Solenoid Valve
- Part number: C247820001
- Condition: Broken
- Location: Nlg Steering
- Component: Nlg Steering, C248560014
- 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/CA011209002

## Discrepancy

(CAN) DURING DEACTIVATION OF THE NOSE LANDING GEAR STEERING SYSTEM, THE NOSE WHEELS TURNED 90 DEGREES RIGHT WITHOUT ANY STEERING INPUT WHEN STEERING / ANTI-SKID SWITCH WAS TURNED OFF. AT THAT MOMENT THE THE AIRCRAFT CONDITION WAS:-STEERING BY-PASS PIN INSTALLED IN TOW POSITION.-BOTH ENGINE MASTER SWITCH OFF. -GREEN ELECTRICAL HYDRAULIC PUMP ON.-UPON REMOVING AND OPENING THE SOLENOID VALVE ASSY , WE DISCOVERED THAT THE LINER (MADE OF ALUMINIUM ALLOY) WAS BROKEN (SHEARED).

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