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.

Trevor van Rooyen (Workshop Manager)

Trevor started his aviation career back in 1979 with Air Zimbabwe. He relocated to South Africa in 1981 to complete his apprenticeship at Atlas Aircraft. In 1990 he moved to the general aviation sector specialising in the repair and overhaul of the P&WC PT6A series of engines. He holds several engine and airframe ratings. In 1993 he obtained his FAA A & P license to assist USA registered aircraft in the region. He has held various positions in the industry from Technical Sales Support to Maintenance Director travelling around the world to assist customers with their engine requirements. Trevor’s interests include nature, motor sport and especially family.

Helga Barnard (Controller)

Helga started her accounting career in 2007 as a bookkeeper in Citrusdal gaining experience in citrus farming, transport & courier as well as retail until 2015 when she was accepted at one of SAICA’s training offices in Krugersdor. She completed her bachelor’s degree in accounting science in 2017 and her SAICA traineeship in 2019. In 2021 she registered at SAICA as an Associate General Accountant. TEMRO and Helga’s paths crossed during this period and her interest in aviation and management accounting started.  She officially joined the TEMRO team in 2023. Helga is a passionate about accounting and always seeks areas needed for improvement and efficiency. In her free time, she loves games, puzzles, drawing and painting.

Werner Nothnagel (Regional Sales Manager)

Werner started his aviation career in 1983 with the South African Airforce where he did his apprenticeship and then in 1986 qualified as an aircraft maintenance engineer. In 1996 he moved to the general aviation sector specialising in the repair and overhaul of the P&WC PT6A series in addition to other engine types. He holds several engine and airframe ratings and has held various positions in the industry from Planning, GM Stores, GM engine shop and Accountable Manager/Maintenance Director. He brings a wealth of knowledge to the industry and is passionate about supporting customers/engineers with their engine requirements or questions about the aviation business in general.