# SDR 98ZZZX2405

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 13, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N972NA
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Aircraft serial: 023
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: 1005383400
- Condition: Failed
- Location: Mlg
- Part time: 21,338 hours
- Component: Magnaghi
- Stage of operation: AP
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/98ZZZX2405

## Discrepancy

NORMAL LANDING GEAR EXTENSION FAILED.  EMERGENCY LANDING GEAR EXTENSION HAD TO BE USED.  (STX) C/W MEL BOOK PROCEDURES AND DEFERRED LANDING GEAR RETRACT SYSTEM PER MEL 32-03-C.  (SJU) REPLACED LANDING GEAR SELECTOR VALVE AND PERFORMED OPERATIONAL CHECK.  FOUND SYSTEM OWRKING PROPERLY.  MEL CLEARED.

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