Our Team

Prime Turbines Team

"The success of our company originates with the strong work ethic of our people..."


Prime Turbines Management

John Wentworth

Vice President & General Manager – Phoenix, Dallas & Pittsburgh

John has over 30 years of experience in the aerospace industry, bringing an extensive background in Turbine Engine repair, overhaul, and manufacturing. As a licensed A&P and Pilot, John understands and meets the daily challenge of driving value-based, quality solutions to our customers. John welcomes all inquiries and looks forward to working with the Dallas and Phoenix teams to fully understand your requirements and meet your needs.

Joe Kolo

Director of Customer Service

Joe has over thirty years of experience in the aviation industry with experience in customer service and operations management. His knowledge and experience focusing on operations allows for an overall view of all Prime Turbines facilities ensuring customer needs and requirements are met consistently.

office: 972.406.2129

Sharie Griffin

Chief Financial Officer

Sharie has 20 years of accounting and finance experience working with high-growth, global organizations. She holds a Master’s in Business Administration and is a Certified Public Accountant. Sharie joined Prime Turbines in 2021.



Ray Galaviz

Operations Manager – Phoenix

Ray’s twenty years of experience in the aviation industry is a pivotal part of his expertise in customer support, bearing overhaul, continuous improvement, quality assurance, production planning, and materials management. His knowledge of the industry will help him determine how Prime can create a difference for your aircraft. Contact Ray with your questions about our capabilities and replacement material solutions for your Pratt & Whitney Canada PT6A & PT6T engines.


Chuck Praniewicz

Service Center Manager – Pittsburgh 

Chuck brings twenty-two years of experience in the aircraft industry and a passion for flying to his position at Prime Turbines. His experience, understanding and managing business issues– combined with his background as a private pilot and airplane owner–is central to the support and service he is committed to providing his customers. Contact Chuck today to discuss how his team can assist you with your PT6A maintenance needs.



David Ponce

Sales & Service Manager

David has over twenty five years of aviation sales and service experience. His has a wide-ranging background in aviation, from a licensed A&P Technician to customer support & service,that allows him to bring a unique perspective and solutions for your PT6A engine. David welcomes the opportunity to discuss your engine requirements. David habla Español.

Sales Region: Colorado, Louisiana, Mississippi, New Mexico, Oklahoma, Texas

L.D. Blake

Arkansas Sales & Service Manager

L.D. has over forty years of experience specializing in PT6A engine sales and services. His expertise is focused on PT6A agriculture engine maintenance, repair, and prop balancing. L.D. invites you to contact him for all of your PT6A AG aircraft MRO services and needs.

Sales Region: Arkansas

Kevin Blaksley

Sales & Service Manager

Kevin is a licensed A&P professional, pilot, and has been AI (Inspection Authorized) since 1983. He combines his over thirty years of experience with his unique background to formulate solutions that not only help the customer solve their problems but return the aircraft back to service in minimal time. Kevin invites you to contact him for all of your PT6A service needs.

Sales Region: Alabama, Florida, Georgia, North Carolina, South Carolina

Gary Sluhan

Sales & Service Manager

Gary has over 45 years of experience in the aviation industry with extensive customer service and support service. As a licensed A&P specialist, Gary understands that every customer has unique needs and enjoys the challenge of finding the right solutions for his customers. Gary welcomes all inquiries on how he can assist with your PT6A needs.

Sales Region: Illinois, Iowa, Kansas, Minnesota, Missouri, Montana, Nebraska, North Dakota, South Dakota, Wisconsin, Wyoming.

Mark Vanderkooi

Sales & Service Manager

Mark has over forty years of experience in sales, project management, and engineering in the turbine engine industry. His focus on providing innovative MRO service solutions to PT6A customers helps ensure that Prime Turbines delivers maximum value and choice to its customers. Contact Mark to discuss your variety of sales and service options.

Sales Region: Connecticut, Delaware, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, E.Ontario/Quebec.

Henry Lopez

Sales & Service Manager

Henry has over 25 years in business aviation, including engine MRO, hourly cost maintenance programs, and aircraft modifications. His 15 years in the engine MRO sector on PWC engine models, technical background and strong focus on customer service ensures his customers’ needs are well-met. He attended California State University in Chico, CA, and holds a FAA airframe and Power-Plant License. Henry has spent most of his career in MRO technical sales on the West Coast.

Sales Region: Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Utah, Washington, BC-AB Canada.

Mexico, Central & South America

Oscar Rodriguez

office: 830.438.4016

mobile: 214.326.5898

Oscar Rodriguez

Director of Sales — Mexico, Central and South America

Oscar is a sales specialist overseeing the Latin American region. He has twenty-seven years in the aviation industry, with technical and customer service experience on a wide range of turbine engines and airframes. Contact Oscar for questions on any of our products and services. Oscar habla Español.

Sales Region: Mexico, Central & South America