The crew was returning to el-Arīsh Airport following a night exercice. At an altitude of 3,000 feet, while cruising in limited visibility, the airplane struck the slope of Mt Jebel Halal located about 49 south of el-Arīsh Airport. The wreckage was found five meters below the summit and all 20 occupants were killed.
Probable cause (official findings): The accident was the consequence of a controlled flight into terrain. The lack of visibility was considered as a contributing factor.