A black box from the medical jet that crashed in Northeast Philadelphia has been found, the NTSB said on Sunday.
Investigators vow to 'leave no stone unturned' in probe of deadly mid-air collision - Officials say there are no survivors among the 67 passengers on the aircrafts that collided above Washington, D.C.
American Airlines Flight 5342 from Wichita, Kansas, was attempting to land when the plane and a Black Hawk helicopter ...