Turbine Engine Maintenance Repair and Overhaul (TEMRO) is a South African based partnership created by TEMS and ATS to bring a higher level of service and support to PT6A engine operators across the region. Our PT6A capabilities range from line maintenance to full engine overhaul.

We are an independent repair station by design. Regionally owned, operated and focused.

Turbine Engine Management Services (TEMS) provides general aviation consulting, technical and operational support for small to medium sized turbine aircraft operators in Africa.  The company’s technical knowledge, regional expertise and principle-based approach to business makes it a trusted specialist for many aviation operations across the region. Learn more about TEMS

Airforce Turbine Service (ATS) is one of the largest independent FAA & EASA approved PT6A engine repair stations in the world. The company stocks one of the most complete spare parts and engine replacement inventories in the market, holds capabilities to full overhaul and consistently maintains one of the highest repeat business ratios in the industry. Learn more about ATS

Key Personnel

Graham de Wavrin (Director)

Graham completed his aeronautical apprenticeship in the UK in 1988. He soon joined Pratt & Whitney Canada where he progressed from a technician, to Workshop Manager and then Chief Inspector. He also held the positions of Field Support Representative and Sales Manager for the MEA region.  Graham is a licensed engineer and holds several turbine engine series type ratings. In 2007 he founded the South African based technical consulting firm of Turbine Engine Management Services (TEMS). TEMS provides overhaul and repair management, appraisals, minor maintenance and inspection services. TEMRO is a product of Graham’s ongoing commitment and passion for the PT6A regional marketplace. Graham enjoys fishing, Giant Trevally in particular.

Pam de Wavrin (Director)

Pam started her career in Aviation in 1995 as an aircraft maintenance coordinator, warranty administrator and customer liaison for a Cessna approved facility in the region. She joined TEMS in 2008 to assist with the turbine engine repair and overhaul management side of the business. Pam has extensive experience in logbook research, engine appraisals, insurance claims, legal support, parts sourcing and support logistics. TEMRO’s unmatched dedication to its customers is a reflection of Pam’s enthusiasm, oversight and stewardship. Pam is an avid book reader who loves to travel.

Glen van der Merwe (Chief Inspector)

Glen started his career in aviation in 1997 as an aeronautical apprentice for Executive Turbine working primarily in an overhaul shop environment on the PT6A series engines. He qualified as an aircraft mechanic in 2004, then moved to Pratt & Whitney CSC Africa (later Vector Aerospace Africa) where he quickly worked up to the rank of Chief Inspector and Quality Controller. Glen holds a current Aircraft Maintenance Engineers License with several turbine engine series type ratings; equipping him with the technical expertise as well as the commercial experience to provide comprehensive aviation advice and support. Glen enjoys the outdoor life and spends a great deal of time fishing, hunting and camping.

Renaldo Geldenhuys (Sales and Business Development Manager)

Renaldo started his aviation career in 1998 with the South African Airforce, where he qualified as an Aircraft Maintenance Engineer, and then moved on to civil aviation in 2004 where he held positions with several South African AMO’s as a maintenance engineer to department supervisor.  He then spent time with Execujet in their Quality and Safety department, in addition to supervising their Honeywell approved Engine Shop. Before joining TEMRO, Renaldo worked at Absolute Aviation as their Responsible Person Aircraft for Flight Operations as well as a Group Customer Support Manager. He is a licensed engineer with SACAA on a span of engines and airframes. In contrast to the typical sales professional, he can also actually “do the work”.  Renaldo enjoys spending time with friends and family, and is an avid adventure bike and 4×4 enthusiast.