Since 1990 Mark Parr and his team at ASG have operated a JAR145 aircraft maintenance shop in the VAT-free area of Guernsey in the Channel Islands. ASG offers world-class, up-to-the-minute service, maintenance and repair facilities for General Aviation customers from the UK, the Channel Islands and further afield, and has a comprehensive team of licensed and experienced aircraft engineers to service all the needs of local operators, as well as those who visit Guernsey for their service and repairs of aircraft.