# SDR CA030602010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2003
- Submitted: June 16, 2003
- Operation: General aviation
- Make and model: Dhav DHC8102
- Aircraft time: 38,427 hours
- Engine: Pwa PW120A
- Propeller: Hamstd 14SF7
- System (JASC): [3240 · Landing Gear Brake System](https://openairdocs.org/jasc/3240)
- Part: Shuttle Valve
- Part number: 50841
- Condition: Broken
- Location: Brake System
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA030602010

## Discrepancy

(CAN) NUMBER ONE BRAKE ASSY WAS LEAKING AT PISTON (DUE TO AN O-RING PROBLEM).  THE NR 1 SHUTTLE VALVE WAS NOT OPERATING PROPERLY CAUSING NR 2 HYDRAULIC SYSTEM QUANTITY DROP TO ZERO AND NR 1 HYD SYSTEM DROP TO 1 QUART CAUSING MANY SYSTEM FAILURE. THAT PROBLEM IS KNOWN BY THE MANUFACTURER AND A SB EXIST TO CORRECT THE PROBLEM. AN AD IS ALSO IN A DRAFT PROCESS.

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