The UPS freighter that crashed in Louisville was a 34-year old jet. While that’s old for a passenger plane, that’s not so unusual in the world of air cargo.

The Federal Aviation Administration on Saturday ordered MD-11 and MD-11F aircrafts to be grounded as authorities investigate the deadly UPS plane crash in Kentucky.

UPS and FedEx are temporarily grounding all of their McDonnell Douglas MD-11 cargo aircraft, following Tuesday’s plane crash in Louisville, Ky., that killed at least 14 people.

The U.S. Federal Aviation Administration (FAA) on Saturday issued an order prohibiting MD-11 planes from flying, pending inspection, after a fiery crash of a UPS cargo freighter that killed at least 14 people in Louisville,

UPS has grounded its fleet of McDonnell Douglas MD-11s, the type of plane involved in Tuesday’s deadly crash in Louisville, Kentucky, the company confirmed Friday. Now, the FAA is ordering an investigation into those planes before they can fly again.

The FAA has grounded all MD-11 and MD-11F aircraft for inspections after a fatal UPS crash in Louisville, raising fresh safety concerns over the aging freighter.

The United Parcel Service (UPS) and FedEx announced they grounded their fleets of McDonnell Douglas MD-11 planes in the wake of a deadly crash in Kentucky.

The UPS plane that crashed in Louisville was a McDonnell Douglas MD-11, a long-range cargo jet known for its power.

The Federal Aviation Administration grounded all McDonnell Douglas MD-11 aircraft on concerns the engines and its structural wing components could fail as investigations continue into the deadly United Parcel Service Inc.