King Air Specialists

UK CAA and EASA approved with FAA A&P IA engineers ready to support routine & unscheduled maintenance, AOG events, pre-purchase inspections, avionics assistance & upgrades and engine servicing.

Our experienced, friendly team are available to deliver a high standard of maintenance support for your aircraft. ASG offers VAT free parts and labour, please request a quotation.


ASG offers a full range of services to support the owners of all Beechcraft King Air models.

Scheduled and Unscheduled Maintenance

Engineers ready to support all Beechcraft King Air models. 

Propeller and Engine Servicing

Routine inspections and overhauls. In-house or in partnership with approved European and US located facilities. 

Pre-Purchase Inspections

Bespoke survey and airworthiness review packages. 


 Mandates, enhancements, upgrades and repairs. 


Approved to manage airworthiness compliance of your aircraft, in service or in storage. 


New and overhauled parts. A variety of parts in stock and access to global inventories. 


AOG assistance to handle remote service needs. 

Maintenance is available on all series of King Air at ASG’s facility at Guernsey International Airport, additionally as a Garmin dealer ASG is able to offer avionic upgrades in support of obsolescence, system enhancement and mandate (including ADS-B) requirements.

Why choose ASG?

UK CAA and EASA approved, ASG has FAA A&P IA engineers ready to support all your King Air maintenance needs. With the capability and efficiency to maintain your King Air aircraft, ASG provides excellent care, exceptional value and assured turnaround times, all VAT Free.