Authorities have released their preliminary report about the Philadelphia plane crash that killed seven people in January.

The crash killed all six people aboard the Learjet 55 and a seventh person who was inside a vehicle on the ground.

Federal investigators announced that a key piece of machinery appeared to have stopped working years before a crash that killed seven people. By Isabelle Taft In the weeks after a medical ...

PHILADELPHIA (AP) — The cockpit voice recorder was not working on a medical transport plane that crashed in Philadelphia ... s Philadelphia hospital. Jet Rescue Air Ambulance said the plane ...

Medical Jet’s Voice Recorder Likely Wasn’t Working for Years Before Philadelphia Crash PHILADELPHIA ... hospital. Jet Rescue Air Ambulance said the plane had been taking Valentina Guzmán ...

PHILADELPHIA – The cockpit voice recorder was not working on a medical transport plane ... Jet Rescue’s maintenance. Guzzetti, a lead NTSB investigator on John F. Kennedy Jr.’s fatal crash ...

The cockpit voice recorder on the medical ... Jet Rescue Air Ambulance did not immediately respond to a request for comment about the findings in the NTSB's preliminary report. On the night of the ...

Officials said the crash killed all ... old girl who had received medical treatment at Shriners Children’s Philadelphia hospital. Jet Rescue Air Ambulance said the plane was taking Valentina ...