# SDR NACA20060012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2006
- Submitted: March 2, 2006
- Operation: Air carrier
- Aircraft: [N727YK](https://openairdocs.org/aircraft/N727YK), registered now
- Make and model: Boeing 727-22C
- Registry model: [Boeing 727-22C](https://openairdocs.org/model/boeing-727-22c) (OpenAirDocs)
- Aircraft serial: 19806
- Aircraft time: 55,598 hours, 39,976 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Downlock Arm
- Condition: Dirty
- Location: Rt Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/NACA20060012

## Discrepancy

RIGHT MAIN GEAR FAILED TO EXTEND ON APPROACH.  CYCLED GEAR SEVERAL TIMES BEFORE GEAR WOULD EXTEND.  LUBED RIGHT MAIN LANDING GEAR DOWNLOCK SWITCH LINKAGE AND TESTED PER B727MM 32-61-21.  NO DEFECTS NOTED.  OP CHECKED GOOD.  MLG DOOR LIGHT EXTINGUISHED WITH GEAR EXTENDED.

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