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.

And while the doomed Learjet 55 was in contact with an air traffic control tower, "there were no distress calls received from the flight crew," the report said. The fiery crash killed six people ...

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 ...

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 ...