# SDR CA021126002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 26, 2002
- Submitted: January 6, 2003
- Operation: Air carrier
- Make and model: Bolkms BK117A1
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Servo Valve
- Part number: 10546682
- Condition: Cracked
- Location: Hyd System
- 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/CA021126002

## Discrepancy

(CAN) HYDRAULIC UNIT RECEIVED FROM THE USA. UNIT SENT FOR SCHEDULED INSPECTION AND REPAIR OF LEAKAGE. DURING FINAL FUNCTION TEST IT WAS NOTED THAT SYSTEM NR 1 LONGITUDINAL ACTUATOR SERVO VALVE CENTERING PLAY EXCEEDED THE LIMIT.  ACTUATOR DISASSEMBLED AND SERVO VALVE CONNECTING HEAD WAS CRACKED. TOTAL TIME ON HYDRAULIC UNIT 7026.4 HOURS.

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