© 2018 BOSA-Thayaan.

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Founded by BOS Aerospace Ltd and Thayaan Aviation Consultants Group and headquartered in Thailand, BTAS provides Aircraft Line Maintenance services for all major Boeing and Airbus types.

At the heart of our organisation lies a passion for customer service, engineering excellence and innovation which is lead by a desire not just to meet, but exceed our customers expectations.

BTAS delivers to the highest possible standard whilst significantly reducing clients costs.


Our aim is to become your provider of choice, synonymous for quick service and value for money.