Airlines must check fire extinguishers on older ATR planes after a factory error

The US aviation regulator is ordering airlines to check the fire extinguishing systems on certain ATR airplanes. This is because a factory inspection found a fire extinguishing tube disconnected in the cargo compartment of a new plane.

This is a mandatory safety check for a specific type of aircraft. It means airlines operating these planes must perform a functional check of the fire extinguishing system in the aft cargo compartment. If a problem is found, they must fix it immediately.