# SDR 2018FA0000151

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2018
- Submitted: April 26, 2018
- Operation: General aviation
- Aircraft: N300JD
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 0515
- Aircraft time: 1,342 hours, 1,345 cycles
- System (JASC): [3243 · Master Cylinder/Brake Valve](https://openairdocs.org/jasc/3243)
- Part: Valve
- Part number: 959726
- Part serial: 0228A
- Condition: Leaking
- Location: Parking Brake
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2018FA0000151

## Discrepancy

INSTALLED PARKING BRAKE VALVE AS A A REPLACEMENT FOR FAILED VALVE. PARKING BRAKE VALVE FAILS TO HOLD PRESSURE ON LT INBD BRAKE. FAILS FUNCTIONAL CHECK.

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