# SDR WRNA200500023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 2, 2005
- Submitted: October 4, 2005
- Operation: Air carrier
- Aircraft: [N821SC](https://openairdocs.org/aircraft/N821SC), registered now
- Make and model: Airbus A300 B4-203
- Registry model: [Airbus A300 B4-203](https://openairdocs.org/model/airbus-industrie-a300-b4-203) (OpenAirDocs)
- Aircraft serial: 211
- Aircraft time: 50,136 hours, 20,500 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: A2519903
- Part serial: M307
- Condition: Unserviceable
- Location: Mlg
- Stage of operation: AP
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRNA200500023

## Discrepancy

UNABLE TO LOWER GEAR, LANDING GEAR EXT C/B POPPED, PERFORMED ALTERNATE GEAR EXTENSION.  LANDING NORMAL.  REMOVED AND REPLACED LANDING GEAR ELECTRO VALVE IAW 32-31-12.  OP'S CHECK AND LEAK CHECK SATISFACTORY IAW 32-30-00.  AIRCRAFT RETURNED TO SERVICE.

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