PHILADELPHIA — A key piece of hardware that aviation experts and pilots said could solve the mystery in the fatal crash of the medical transport Learjet on Jan. 31 turned out to be useless.

A Learjet 35A owned by Vince Neil crashed at Scottsdale Airport after an apparent landing gear failure. The crash resulted in one fatality and three injuries, two of which were critical.

Neil was not on the plane at the time of the accident, his representative said. A pilot was killed and four others were injured after a Bombardier Learjet 35A veered off the runway after landing ...

Four people were aboard the Learjet that hit a parked Gulfstream jet, which had one person on board. Officials said it appears the landing gear failed on the plane, which is owned by Motley Crue ...

Then 12th December, Monday morning, we woke up to the gift from his congregation; a Bombadier Learjet 85. He posted a photo of a Jet with caption “Thank you very much wonderful people!!” ...