# SDR L2S2003F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2003
- Submitted: August 28, 2003
- Operation: Air carrier
- Aircraft: [N911KS](https://openairdocs.org/aircraft/N911KS), registered now
- Make and model: Bolkms BK117B1
- Aircraft serial: 7042
- Engine: Lyc LTS101*
- System (JASC): [6730 · Rotorcraft Servo System](https://openairdocs.org/jasc/6730)
- Part: Servo
- Condition: Failed
- Location: Tail Rotor
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/L2S2003F00000

## Discrepancy

SERVO FAILED.  INPUT PILOT VALVE INTERMITTENT.  OPS INTERNALLY.  CAUSED TAIL ROTOR CONTROL HARDER TO PUSH RIGHT THAN LEFT.  SLIGHT BINDING IN TAIL ROTOR CONTROL.

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