# SDR CALA9601207

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N17812](https://openairdocs.org/aircraft/N17812), registered now
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49250
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Dnlock Sensor
- Part number: 833703
- Condition: Inoperative
- Location: Nlg
- Stage of operation: DE
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA9601207

## Discrepancy

THE NLG RED UNSAFE LIGHT ILLUMINATED DURING DESCENT.  ABNORMAL PROCEDURES WERE FOLLOWED, BUT THE LIGHT REMAINED ON.  THE INDICATION LIGHTS WERE NORMAL WHEN THE GEAR WAS EXTENDED.  THE AIRCRAFT LANDED WITHOUT INCIDENT.  MAINTENANCE FOUND THE NOSE GEAR LOCK SENSOR AT FAULT.  THE SENSOR WAS REMOVED AND REPLACED.  A GEAR SWING WAS PERFORMED PER MM 32-00 WITH OPERATION AND INDICATIONS CHECKING GOOD.

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