Robinson R66 Turbine — Airworthiness Directives

This Continuing Airworthiness Notice (CAN) issued by the Civil Aviation Authority of New Zealand addresses fuel handling and refuelling practices for Robinson R66 helicopters. Prompted by an investigation into an accident involving a Robinson R66, the CAN highlights the risks associated with fuel contamination, particularly in dusty environments. It emphasizes the importance of proper fuel-handling procedures to mitigate these risks and provides recommendations for operators to ensure safety during refuelling operations. The document serves as a guidance tool rather than a mandatory directive, aiming to educate operators on best practices to maintain airworthiness and safety.

• Operators of Robinson R66 helicopters should be aware of the risks of fuel contamination, especially in dusty environments.
• Fuel pourer spouts and nozzles must be inspected for cleanliness before use to prevent contamination.
• Refuelling from remote sites without an external low-pressure fuel filter is discouraged to avoid engine contamination.
• The R66's fuel system is gravity-fed, and adding filters may require additional pumps to maintain fuel pressure.
• Documented procedures for fuel handling are essential to mitigate risks associated with fuel contamination.