On September 3, 2017, about 0930 coordinated universal time, a Cessna 172M, South African registration ZS-JDN, was destroyed when it impacted a valley in the Magaliesberg Mountain range, near Hekpoort, South Africa. The two commercial pilots were fatally injured. The local personal flight departed Wonderboom Airport (FAWB), Pretoria, South Africa. The South African Civil Aviation Authority (SACAA) Accident and Incident Investigations Division (AIID) is investigating the accident. As the State of Manufacture and Design of the airplane and engine, the NTSB has appointed a US Accredited Representative under the provisions of ICAO Annex 13 to assist the AIID in its investigation. All inquiries concerning this accident should be directed to: South African Civil Aviation Authority Accidents and Incidents Investigation Division Private Bag X 73 Halfway House 1685 South Africa Tel.: +27 (0) 11 545-1055/1050 +27 (0) 83 461-6277 (24 hours) E-mail:AiidInbox@caa.co.za Fax: +27 (0) 11 545 1466 Website: http://www.caa.co.za This report is for informational purposes only. All investigative information will be released by the SACAA.