On Thursday, March 6th, the National Transportation Safety Board (NTSB) released its preliminary report about the Learjet 55 aircraft that crashed in Philadelphia, Pennsylvania. On Friday, January 31st, a Learjet 55, which was being utilized as an air ambulance, departed a local airport in northeast Philadelphia. However, shortly after departing the airport, the private jet suddenly nose-dived into several buildings near the airport. The crash started a large fire and caused significant damage to several buildings. The crash resulted in the death of all six occupants and one person on the ground. Over twenty other people on the ground were injured as a result of the incident.