He was the technical lead in several defect and accident investigations of aircraft/aero-engines, systems/components and special study/audit teams of IAF and Ministry of Defence. His contributions to quality and safety of Indian military aviation have been recognized by service awards. He has presented technical papers at national/international conferences and has regularly contributed to the IAF magazine Flight Safety. 

His latest book is ‘Implement AS 9100 Rev D for Business Excellence’, was published in India by Blue Rose Publishers and is available worldwide on Amazon Kindle. His earlier books are ‘Safety Follows Where Quality Leads’ (2010) and 'A Complete Guide to Implement AS 9100 Rev C' (2012), which have sold over 1000 copies worldwide.

He can be reached at

Shri K. T. Thomas is an RABQSA certified, ANAB approved/IAQG-OASIS registered (AO 104910) Aerospace Industry Experienced Auditor, Trainer and Consultant for AS 9100 Rev C and Lead Auditor for ISO-9001:2008. 

He has conducted more than 700 audits and 150 training programs both in India and overseas at leading PSUs, defence establishments and private companies.

In 2006, he retired as Deputy Director/Principal Scientific Officer in DGAQA (Directorate General of Aeronautical Quality Assurance, Ministry of Defence) after over 40 years of service. This includes 12 years of teaching at College of Military Engineering, Pune, and over 28 years of quality assurance experience with the development, production and maintenance/overhaul of aircraft from trainers to frontline fighters, aero-engines and other equipment of the Indian Air Force.