# SDR 2009FA0000984

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2009
- Submitted: November 20, 2009
- Operation: General aviation
- Aircraft: N922CB
- Make and model: Gulstm GIVXG450
- Aircraft serial: 4169
- System (JASC): [2916 · Hydraulic Reservoir, Main](https://openairdocs.org/jasc/2916)
- Part: O-Ring
- Condition: Disintegrated
- Location: Sight Glass
- Component: Reservoir
- Component part number: 1159SCH5197
- Stage of operation: IN
- How discovered: V
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000984

## Discrepancy

SIGHT GLASS O-RING IN HYD RESERVOIR APPEARS TO BE OF A NON COMPATIBLE MATERIAL WITH HYD FLUID.  CAUSING O-RING TO DISINTERGRATE LEAVING PIECES OF O-RING MATERIAL IN RESERVOIR AND CAUSING SIGHT GLASS TO LEAK.  THIS COULD CAUSE HYD SYS CONTAMINATION OR LOSS OF HYD POWER.  (K)

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