# SDR 95ZZZX851

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 1, 1995
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N980Z
- Make and model: Doug DC-9-31
- Registry model: [Doug DC-9-31](https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Aircraft serial: 47344
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Downlock Switch
- Part number: H146
- Condition: Failed
- Location: Rt Mlg
- Stage of operation: AP
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX851

## Discrepancy

STL - FLT 641 - DURING APPROACH WHEN LANDING GEAR WAS EXTENDED, RIGHT MLG UNSAFE LIGHT REMAINED ILLUMINATED; CYCLED LANDING GEAR.  REPLACED RIGHT MLG DOWNLOCK SWITCH, MFG PN H14-6.  LANDING GEAR OPERATION AND POSITION AND WARNING SYSTEM CHECKED NORMAL.  CHECK C - 1-28-94 - MCI.

---
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.