Airworthiness Directives; Robinson Helicopter Company Helicopters

We are adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company (Robinson Helicopter) Model R66 helicopters. This AD requires inspecting the oil tank outlet's fitting color. If the fitting is blue, this AD requires replacing the tank with an oil tank that lacks a blue fitting. This AD also requires determining the revision letter on the ink stamp, and installing an oil tank angle based on that determination. This AD was prompted by reports of broken oil tank internal baffles. The actions of this AD are intended to correct an unsafe condition on these products.