The Federal Aviation Administration (FAA) issued a new rule affecting certain Airbus Canada Limited Partnership airplanes due to issues with a component called the horizontal stabilizer trim actuator (HSTA). This new rule requires using an improved method for lubricating the HSTA, as some airplanes experienced jams caused by water intrusion and freezing, potentially leading to loss of control. The rule aims to align with a related Transport Canada directive, and it takes effect on March 21, 2025. The FAA reviewed comments on the proposed rule and made some clarifications but hasn't changed the main requirements.
Simple Explanation
The FAA made a new rule for some airplanes because a part called the horizontal stabilizer trim actuator (HSTA) can freeze and get stuck, which might make the plane hard to control. The rule says it's important to use a better way to keep this part lubricated to stay safe.