Airlines stopped flying MD-11s mainly because the aircraft initially failed to meet its promised performance, particularly in range and fuel efficiency, which led to many airlines canceling orders or replacing them with more efficient planes such as the Boeing 777 and Airbus A330, according to the Infinite Flight blog.

LOUISVILLE, Ky. (AP) — A UPS cargo plane’s left wing caught fire and an engine fell off just before it crashed and exploded after takeoff in Kentucky, a federal official said Wednesday, offering the first investigative details about a disaster that killed at least 12 people, including a child.

Surveillance video from a truck parts business near the Louisville airport shows large flames and plumes of smoke as the UPS plane crashes.

The power had just gone off and the ground was shaking at Grade A Auto Parts when the owner received a panicked video call from his chief financial officer. On his screen, CEO Sean Garber watched a “huge fireball” engulf the Louisville,

UPS said in a statement that it’s activating contingency plans to move shipments “as quickly as conditions permit,” though it did not release details. Supply chain experts say they believe the

The United Parcel Service cargo plane that crashed Tuesday was 34 years old and needed a critical repair on its fuel tank in September.The MD-11 plane was grounded in San Antonio from Sept. 3 through at least Oct.

At least 12 people were killed and several others injured after a UPS plane crashed shortly after taking off from the Louisville International Airport on Tuesday.

The death toll climbed to at least 12 on Wednesday, Nov. 5, and several people remained unaccounted for, said Louisville Mayor Craig Greenberg.