GCS

Great Circle Services are a team of aviation experts on the whole range of planning and management issues, providing  customized solutions to strengthen the position of our customers' business in the aviation market.

Great Circle Services maintain contact with regulators, the aviation industry and leading aviation universities and participate in the practical application of recent research. Profound command of pertinent methods and skills as well as extensive industry experience are our key characteristics.



Great Circle Services aspiration is to generate a sustainable safety culture, which integrates the lessons learned from the application of regulations and the practices of the aviation industry.

Based on Great Circle Services experience as SAFA Inspectors, we have seen that a system was needed to safely fasten bags and small catering boxes in cabins without sufficient galley space. Our solution is Bag Secure. Bag Secure can be purchsed directly from us or via our distributor www.aviationbusiness.com.

Core Team

Michael Grüninger is Managing Director of GCS and focal point for operations and training. He is an accredited IS-BAO Auditor.

Markus Kohler is Deputy Managing Director and focal point for continuing airworthiness and maintenance. He is an accredited IS-BAO Auditor.

GCS employs a  group of experienced full-time and part-time consultants and staff holding a wide range of expertise. To cover peak demand we are proud to be part of a stable network of excellent expert partners.

A great circle is the shortest distance between two points on a sphere.
Great Circle Services AG Aviation Safety Advisors was established in 2005 by Michael Grüninger, a professional pilot and
former flight inspector of the Swiss Federal Office of Civil Aviation (FOCA).
The company is registered in Switzerland and operates world-wide.