# SDR 2021F00282

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2021
- Submitted: October 1, 2021
- Operation: General aviation
- Make and model: Airbus EC135 P3
- Registry model: [Airbus EC135 P3](https://openairdocs.org/model/airbus-helicopters-deutschland-ec135-p3) (OpenAirDocs)
- System (JASC): [6720 · Tail Rotor Control System](https://openairdocs.org/jasc/6720)
- Part: Lever
- Part number: L673M40A9001
- Condition: Worn
- Location: Tail Rotor
- Component: Actuator
- Component part number: L673M40A1003
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2021F00282

## Discrepancy

ON MANY EC135 SERIES AIRFRAMES, EXCESSIVE WEAR HAS BEEN NOTED ON A PRIMARY FLIGHT CONTROL LEVER. SPECIFICALLY THE TAIL ROTOR HYDRAULIC ACTUATOR INPUT LEVER. DIRECT CONTACT OF THIS LEVER WITH A STATIONARY COMPONENT CAUSES ABRASION AND WILL EVENTUALLY LEAD TO FAILURE OF THE LEVER, AND LOSS OF CONTROL OF THE HELICOPTER. CURRENT INSPECTION REQUIREMENTS AND LIMITATIONS ARE INSUFFICIENT.

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