Gulfstream G280 planes need a new electrical harness to stop water leaks

The US aviation regulator is ordering Gulfstream G280 airplane owners to fix a water leak problem. Water has been getting into electrical connectors in the back of the plane, causing flight control warnings.

This is a mandatory fix for a specific plane model. It means Gulfstream G280 owners must spend money to replace a part, or their planes cannot fly. This kind of directive is how regulators ensure safety after a design flaw appears in the real world.