What We Know So Far About the Doomed Learjet 55 Medical Ambulance Plane

The plane’s owner, Jet Rescue, provides global air ambulance services, confirmed Friday night that six people were on board, including four crew and a pediatric patient and their escort. “At this time, we cannot confirm any survivors,” Jet Rescue said Friday night. “Our immediate concern is for the patient’s family, our personnel, their families and other victims that may have been hurt on the ground.”

A medical transport plane carrying a pediatric patient, her mother, and four crew members crashed into a Philadelphia neighborhood Friday night, erupting into a fireball and engulfing nearby homes and cars in flames.

The audio, obtained by Fox News Digital, was recorded moments before the plane took off. Operators can be heard speaking as they desperately tried to make contact with the Learjet 55 before it crashed. "What’s going on down there?" one air traffic controller can be heard saying. "We have a lost aircraft. We’re not exactly sure what happened. So, we’re trying to figure it out," replies another air traffic controller. "The field is going to be closed so no inbounds-outbounds."