# SDR C2XA01CL056

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 8, 2001
- Submitted: March 13, 2001
- Operation: Air carrier
- Aircraft: N34820
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 159
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Sensor
- Part number: D228830001
- Part serial: EL1751
- Condition: Failed
- Location: Nlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/C2XA01CL056

## Discrepancy

CLE FLIGHT 3158 THE CREW REPORTED THE LANDING GEAR SYSTEM 1 NOSE GEAR UNLOCK LIGHT ILLUMINATED UPON GEAR EXTENSION.  THE LIGHT REMAINED ON UNTIL AFTER TOUCHDOWN.  MAINTENANCE REMOVED AND REPLACED SYSTEM 1 PROXIMITY SENSOR.  OPERATIONAL CHECKS WERE GOOD.  THE AIRCRAFT WAS RELEASED FOR SERVICE.

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