The single engine aircraft left New Delhi at 0842LT on an ambulance flight to Bangkok with two pilots and three doctors on board. A refueling stop was completed at Calcutta Airport. At 1903LT, en route to Bangkok-Don Mueang Airport, the crew contacted ATC and requested permission to divert to Kamphaeng Saen Airport for an emergency landing. The permission was granted and the crew started the descent when the aircraft disappeared from radar screens at 1916LT. The burned wreckage was found one hour and thirty minutes later (2048LT) in a wooded area located few km from runway 22L threshold. All five occupants were injured while the aircraft was destroyed. Few hours later, the copilot died from his injuries.