# SDR 9701546634

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 19, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N634US](https://openairdocs.org/aircraft/N634US), registered now
- Make and model: Boeing 747227B
- Aircraft serial: 22234
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Downlock Sensor
- Part number: S405
- Condition: Failed
- Location: Rt Mlg
- Stage of operation: CL
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9701546634

## Discrepancy

DURING CLIMB, THE RIGHT WING LANDING GEAR RED WARNING LIGHT REMAINED ILLUMINATED AFTER LANDING GEAR RETRACTION.  RECYCLED LANDING GEAR AND LIGHT EXTINGUISHED.  AIRCRAFT CONTINUED TO NRT AND LANDED WITHOUT INCIDENT.  REPLACED THE RIGHT WING LANDING GEAR PRIMARY DOWNLOCK SENSOR, OPERATIONAL CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.