The Federal Aviation Administration (FAA) proposes to replace an older Airworthiness Directive (AD) from 2010 for Airbus Helicopters, previously Eurocopter France, Model SA330J helicopters. This new rule aims to improve aircraft safety by requiring an inspection and potential replacement of the main gearbox oil cooling fan rotor shaft bearings with an updated design developed by Airbus. These actions are intended to prevent possible rotor failure, which could lead to damage and loss of control of the helicopter. The FAA is inviting public comments on this proposed rule by April 12, 2021.
Simple Explanation
The FAA wants to make some changes to how a certain helicopter part is checked and fixed so that flying is safer. They are asking people what they think about this idea before they make a final decision.