While nearly 43 years old, the Learjet that crashed in a fiery, rush-hour explosion Friday night in Northeast Philadelphia is one of the workhorses in Jet Rescue’s medical transport fleet.

A medical transport jet carrying six people, including a child patient, crashed in Northeast Philadelphia shortly after taking off.

A medical transport jet with a child patient, her mother and four others aboard crashed into a Philadelphia neighborhood shortly after takeoff Friday evening, exploding in a fireball that engulfed several homes.

A medical transport jet with a child patient, her mother and four others aboard crashed into a Philadelphia neighborhood shortly after takeoff Friday evening, exploding in a fireball that engulfed several homes.

A medical transport jet transporting a child who had just completed treatment for a life-threatening condition, her mother and four others crashed into a Philadelphia neighborhood shortly after takeoff Friday evening,

A medical transport jet carrying a pediatric patient and five others has slammed into a Philadelphia neighborhood and exploded in flames

The plane had been on a medical transport mission, carrying a child patient and her mother, and four crew members, according to Jet Rescue Air Ambulance, a medical aircraft company. "We know that there will be loss,