About Transwest Helicopters

We are your ONE CALL for comprehensive helicopter solutions. Transwest Helicopters maintenance, repair and overhaul division is recognized internationally by Transport Canada Civil Aviation (TCCA), United States FAA, Republic of Korea Ministry of Lands, Infrastructure and Transport (MOLIT) and European Aviation Safety Agency (EASA). Transwest Helicopters is celebrating over 50 years of providing safe and cost effective helicopter services worldwide. From maintenance, repair and overhaul, part sales or support to the unique certified solutions developed over the years, Transwest Helicopters ensures their customers receive efficient and cost-effective solutions.

  • play_arrow World leaders in Bell Medium and Legacy helicopters including the 204, 205, 212, 214B, 214ST and 412 Maintenance, Repair and Overhaul
  • play_arrow Complete helicopter rebuild and refurbishment facility
  • play_arrow Engine and Component Repair and Overhaul, Avionics, Structural Repair, Painting and Finishing divisions
  • play_arrow Design and Certify reliable and safe solutions that are cost efficient and increase operational capability
  • play_arrow Worldwide 24/7 AOG Support and Field Maintenance Services
  • play_arrow Fly-in, fly-out convenience

Mission Statement

Transwest Helicopters Ltd. is committed to providing our customers with the highest quality, safest and most cost-effective helicopter services available, through our team of skilled and dedicated professionals.

Our Story


John “Jack” McMahon, a former RAF Halifax pilot and WW II veteran, established Transwest Helicopters (1965) Ltd in BC in 1965. He had purchased an inactive Calgary aviation company and moved that business to Vancouver International Airport, retaining the name “Transwest Helicopters”.

Transwest Helicopters 1965
Transwest Helicopters 1968

Transwest Helicopters was in full operation with 11 helicopters, which increased to 16 by 1970. The company was involved in constructing transmission towers, heli-logging, spraying, fire fighting and were involved with the Federal Department of Energy, Mines and Resources and the BC Forest Service.


Transwest Helicopters began operating the 214B Big Lifter.

Transwest Helicopters 1990
Transwest Helicopters 2004

Transwest Helicopters was purchased by it’s current owners Ernst-Ulrich and Alison Maas in October 2004 and continued to operate several Bell 214 aircraft, predominantly for heli-logging, heavy lift and fire fighting operations. The company also established a thriving business for component overhaul as well as structural repairs for the Bell 214B and Bell 412 and invested in a Bell certified tail-boom and main cabin fixtures for the 214B.


With many years of operational experience behind the team, a decision was made to focus on growing the MRO capabilities. The company relocated to a new facility located at the Olivier Airport, BC where it operates as a world renown Fly-In Fly-Out MRO facility today.

Transwest Helicopters Today

Our Team

Ernst-Ulrich Maas


Ernst is both a fixed wing and helicopter pilot with 50 years (12,800 hours helicopter and 4,400 hours fixed wing flying experience), both throughout Canada and also internationally. He has also worked in aviation management since the 1980’s with Abu Dhabi Aviation (helicopters/UAE), Air Hart (fixed wing/Kelowna BC) and Transmaldivian Airways (fixed wing/Republic of the Maldives) and of course Transwest Helicopters (helicopters/ Chilliwack & Oliver BC). He and his wife Alison have successfully owned and operated Transwest Helicopters Ltd since 2004.

Doug Maki

Director of Maintenance

Doug has over 35 years of all-round experience in extensive refurbishment of Bell 206 series, 407, 204, 205, 212, 212 ‘S’, 214, 412, Airbus 350 series and MDHI 500 helicopters. He has been working with Transwest in Oliver as 212/412 Production Manager since 2015. In addition he has gained Sales, QA and Safety Program Management experience over the course of his lengthy career.

Garth Ramsay

Production Manager

Transwest Helicopters Ltd is very pleased to announce the return of Garth Ramsay to our company as Production Manager. Garth previously worked for Transwest from 1997-2007 as DOM/Operations Manager/QA/SMS Program Manager, then left to pursue an overseas opportunity in Australia for several years.

Garth, TCCA AME, FAA A&P, Australian AME and PNG AME qualified, has over 25 years industry experience, especially in the areas of field engineering, component overhaul and general helicopter management. He has industry approved training in Sikorsky S-61, Bell 214B, 212, 206B helicopters.