Glider owners must now inspect for rust and seal a critical part, or replace it

The US aviation regulator is requiring owners of specific glider models to repeatedly inspect a rudder part for corrosion and water entry. Owners must also modify the part to improve rust protection, or replace the rudder if corrosion is severe.

This rule means glider owners now have a new, mandatory maintenance task. It shifts the responsibility for detecting and preventing a specific type of structural failure from the manufacturer to the owner. This kind of directive is common in aviation, where safety issues are often addressed by adding new inspection and maintenance requirements to existing aircraft.