# SDR HEEA968606

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N911PB](https://openairdocs.org/aircraft/N911PB), registered now
- Make and model: Bell 412
- Registry model: [Bell 412](https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Aircraft serial: 33186
- System (JASC): [6730 · Rotorcraft Servo System](https://openairdocs.org/jasc/6730)
- Part: Cylinder  Assy
- Part number: 212076005105
- Condition: Leaking
- Location: M/R Control
- Part time: 2,618 hours
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HEEA968606

## Discrepancy

SERVO TESTED PRIOR TO REPAIR.  SERVO LEAKING AT BOTH ENDS OF UPPER AND LOWER CYLINDERS.  LEAKING INTERNALLY IN NEUTRAL POSITION IN BOTH CYLINDERS AND LEAKING EXTERNALLY AT BOTH LOWER PILOT VALVES.

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