Five weeks after a medical plane crashed in Philadelphia, leaving seven people dead​, the cause is still under investigation.

The preliminary report on the Philadelphia jet crash found the cockpit voice recorder likely hadn't recorded audio for ...

Federal investigators announced that a key piece of machinery appeared to have stopped working years before a crash that ...

The National Transportation Safety Board says a cockpit voice recorder was not working on a medical transport plane that ...

The cockpit voice recorder was not working on a medical transport plane that killed seven people when it plummeted into a ...

The National Transportation Safety Board released their preliminary report about the Philadelphia plane crash that killed ...

The crash in a residential and commercial area of Philadelphia killed all six people on board the plane and one person on the ...

The plane's crew was in communication with the air traffic control tower at the time of the accident, and no distress calls ...

Additionally, according to the NTSB's report, although the medical jet's flight crew had been in communication with an air traffic control tower at Northeast Philadelphia Airport, where the flight ...