# SDR 1HTR2016011300001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 29, 2015
- Submitted: January 14, 2016
- Operation: General aviation
- Filed by: [Helitender Inc, repair station 1HTR181B](https://openairdocs.org/faa-repair-station/1HTR181B/helitender-inc.md) (OpenAirDocs)
- Aircraft: [N121PD](https://openairdocs.org/aircraft/N121PD), registered now
- Make and model: Urocop EC120B
- Registry model: [Urocop EC120B](https://openairdocs.org/model/eurocopter-ec120b) (OpenAirDocs)
- Aircraft serial: 1250
- Aircraft time: 8,775 hours, 14,268 cycles
- Engine: Tmeca ARRIUS2F
- Engine time: 8,358 hours, 5,769 cycles
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Pressure Switch
- Part number: 7050A3632180
- Part serial: 17234
- Condition: Malfunctioned
- Location: M/R Gearbox
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/1HTR2016011300001

## Discrepancy

IN FLIGHT ILLUMINATION OF MAIN GEAR BOX PRESSURE CAUTION LIGHT, RED, PILOT MADE AN UNSCHEDULED PRECAUTIONARY LANDING.  PRESSURE SWITCH WAS STICKING.

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