verb. If an aircraft or its passengers are grounded, they are made to stay on the ground and are not allowed to take off.

How do you ground a plane?

Establish A Good Engine Ground In most aircraft, you do this by connecting one end of a heavy cable, or metal grounding strap, to some conveniently located bolt on the engine crankcase. The other end of the grounding strap should terminate on some solid part of the aircraft’s firewall structure.

What does it mean when a pilot is grounded?

This term was used initially in aviation: when a pilot is prevented from flying an aircraft due to misconduct, illness, technical issues with the aircraft, or other reasons, the pilot is “grounded” – that is, literally confined to the ground.