Gliders with propellers are now banned from flying with the engine on

The US aviation regulator has issued a new rule for a specific model of glider. These gliders can no longer fly with their propellers engaged, due to reports of propellers separating in flight.

This rule means that a specific type of glider, the DG-1000T, can no longer use its engine to assist flight. Owners must revise their flight manuals and install placards to reflect this new restriction. It's a direct safety response to a documented failure.