September 05, 2022


Sofema Aviation Services (SAS) is delighted to invite you to our forthcoming training course:

Certification Specification 25 (CS 25) Training Course – 5 Days – Bangkok /Thailand

Dates: 17-21 October 2022
Mjets Facilities Don Mueang, Bangkok, Thailand
1460 EUR

Register at before 19 September 2022 & Save up to 35% off the price with our Early Bird Discount. (Read more)

Enjoy Multiple discount opportunities + an option for enrolment in Free of Charge Relevant Foundation online course

What is the training about?

This course aims to provide the delegates with a basic understanding of Certification Specifications 25 (CS-25) together with an overview of the key fundamentals of Large Aeroplanes certification. They will learn details about the Certification Process related to Large Turbine-Powered Aeroplanes. The participants will be able to use the regulatory information to document and demonstrate compliance. After completing the training they will understand the Safety Assessment Process Related to CS25-1309. See details

Which Subjects will be addressed during the training?

Day 1

  • Definitions & Abbreviations
  • Airworthiness System Considerations
  • Regulatory Background (ICAO, JAA, FAA, EASA)
  • EASA Part 21 Introduction

Day 2

  • Design Aspects of Airworthiness
  • EASA Part 21 Design Certification – Proportionality & Level of Involvement
  • Introduction to Aircraft Certification Specification CS 25
  • CS25 Airworthiness Code (Certification Specification)
  • CS 25 – Safety Assessment CS25-1309
  • Flight Test Overview
  • Flight Manual & Supplements
  • Developing & Managing Instructions for Continued Airworthiness ICAW
  • CS 25 Appdx H — Instructions for Continued Airworthiness
  • Operational Suitability Data (OSD)

Day 3

  • Subpart B – Flight
  • Structure General Introduction:

-Damage Tolerant

  • CS-25 Subpart C – Structure
  • Subpart D – Design and Construction
  • CS-25 Subpart F – Equipment
  • CS-25 Subpart G – Operating Limitations and Information.
  • Enhanced Airworthiness Program for Aeroplanes Systems (EAPAS)

See the content of days 4 and 5

Instructor Details

The Certification Specification 25 (CS 25) Training Course will be delivered by the SAS CEO Steve Bentley. He has over 40 years of experience in commercial aviation, including more than 12 years in the airworthiness department of Virgin Atlantic – a major UK international airline. Steve is also a competent trainer with a deep knowledge of the EASA regulatory structure and a huge portfolio of subjects including both aviation operations and maintenance disciplines. He is ISO 9000 trained lead auditor, as well as IOSA trained. With decades of practical experience, he is able to support the development of working solutions to many organisational challenges which we face within the operational and maintenance environment.

Why should you choose Sofema Aviation Services?

Sofema Aviation Services is a Regulatory training and consulting company with over 45 years of commercial aviation experience and 13 years of operational experience. Since we started we have provided training services to approx 60 000 delegates and we have grown for 2 primary reasons! The first is that we are professional and we listen to our customers. Please visit our download area as an example of how we engage with our customers. The second is not only the fact that our prices are far more cost-effective than our competitors it is that our discount program leaves all the others way behind – please do not take our word for it, check it out – SAS Discount Program

What do people say about Sofema Aviation Services Training?

“The instructor showed a very resourceful background and experience.”
“The instructor used the right words to explain the material.”
“The discussions among the group were very beneficial.”
“All sections of the course were related to my field.”
“Adequate answers were given to specific questions.”

Gain knowledge of the key fundamentals of Large Aeroplanes Certification – Save your spot at!


Aircraft Flight Manual (AFM), Airworthiness, aviation, aviation safety, Aviation Training, Certification Specification 25 (CS 25), Compliance, CS-25 Subpart C, CS-25 Subpart F, CS-25 Subpart G, Design Certification, Early Bird Discount, EASA, easa part 21, FAA, Flight Test, ICAO, JAA, Large Aeroplanes, Regulatory training, Upcoming Courses