# SDR CA120717015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 17, 2012
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Robsin R44
- Engine: Lyc O540F1B5
- System (JASC): [2916 · Hydraulic Reservoir, Main](https://openairdocs.org/jasc/2916)
- Part: Reservoir
- Part number: D2111
- Condition: Venting
- Location: Hyd System
- Stage of operation: IN
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA120717015

## Discrepancy

(CAN) HYDRAULIC RESERVOIR VENTING HYDRAULIC FLUID FROM THE BREATHER.  INSTRUCTED BY RHC TO REPLACE HYD FILTER, BLEED THE SYS, REMOVE AND REINSTALL FILTER.  C/W WITH INSTRUCTIONS, ACFT GROUND RUN WITH NO FLUID VENTING.  WILL MONITOR IN THE COMING FLIGHTS.

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