EASA CS 25 Cabin & System Safety and Certification Training – 3 Days


Over the life of the Aircraft, the Cabin Environment is likely to see multiple modifications including any of the following

Configuration (LOPA) changes
Major and Minor seat upgrades including any of the following

First, Business and Economy class configurations, either minor modifications or STC,
Major and Minor cabin changes
IFE Installation, Integration & Upgrades USB / PC Power Supply
Certification requirements for civil [commercial] aircraft are derived from

• ICAO Annex 8 Airworthiness of Aircraft together with
• ICAO Airworthiness Manual, Part V State of Design and the State of Manufacture.

Each ICAO contracting state is obligated to establish its legal framework. Within the European Community, this activity is undertaken by EASA essentially harmonized with the FAA.

The course reviews the regulatory background driven by ICAO, FAA, and EASA. Consideration is given to the technical aspects regarding systems and avionics, cabin and structure, and certification topics.

The Following Regulations will be considered during this course:

  • Part 21
  • CS-25
  • Part 26
  • CS-26

What is the Benefit of this Training – What will I learn?

a) To achieve a basic understanding of Certification Specifications CS-25 related to the Cabin Environment

b) To understand in detail the Certification Process related to the Cabin Environment of Large Turbine Powered Aeroplanes

c) To be able to use the regulatory information to document and demonstrate compliance

d) To Understand the Safety Assessment Process Related to CS25-1309

e) To be able to engage in a project-based relationship with DOA & POA to promote constructive dialogue

f) Act as an “advocate” during DOA discussions to ensure a customer-focused interpretation of regulations and certifications

Detailed Content / Topics – The following Subjects will be addressed

Day 1

  • Regulatory Background (ICAO, FAA, EASA)
  • Working with EASA – Basic intro to the DOA-POA relationship
  • EASA Part 21 Certification Process, Compliance Showing, Configuration Control.
  • EASA Part 21 Design Certification – Proportionality & Level of Involvement
  • Type Certificate Data Sheet Considerations
  • Introduction & Regulatory Drivers for OSD
  • CS 25 – Safety Assessment CS25-1309
  • EASA Certification Review Items (CRI) & FAA Acceptance

Day 2

  • Introduction to Aircraft Certification Specification CS 25
  • Common AMC Material and other related certification Guides
  • Cabin Flammability Certification Requirements
  • Enhanced Airworthiness Program for Aeroplane Systems (EPAS)
  • Aircraft Certification Crashworthiness and Survivability
  • CS 25 Equipment Standards – RTCA / EUROCAE
  • Considering Other Standards such as SAE, MIL, etc.

Day 3

  • CS-25 Subpart C – Structure
  • CS-25 for Cabin Safety, Flammability, Electrical System Safety, and Airworthiness
  • Subpart D – Design and Construction
  • CS-25 Subpart F – Equipment
  • Design Aspects of Airworthiness
  • Certification of Products, Parts & Appliances
  • Current Certification Issuers and Challenges
  • CS 25 Considerations Related to Technical Requirements and Safety Requirements
  • CS 25 Appdx R — HIRF environments and equipment HIRF test levels
  • Classification of Changes
  • Declaration of Design and Performance and Other Report Considerations
  • Additional Installation of Medical Equipment – Stretchers, (Medical Grade) Oxygen Bottles
  • Performing a Cabin Certification “Walk” for Compliance
  • Debrief and Close

Target groups

The course is intended for personnel involved in the specification and coordination of changes to TC, RTC, or STCs or individuals intending to apply for minor changes. The course is also suitable for persons involved directly or indirectly with the System Safety Assessment process.


Familiarity with terminologies and concepts of design and initial airworthiness.

Learning Objectives:

To equip the delegates with a basic understanding related to the certification requirements for the turbine-powered large airplane. Additionally to understand how to demonstrate compliance with the certification specification.

Certificate Wording

EASA CS25 (Large Aircraft) familiarisation course incorporating the relevant aspects of Part 21 within the design and certification context and the application of CS 25 in showing of compliance (Subparts A, B, C, D, F, G and H).

What do People Say About Sofema Aviation Services Training?

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


3 days – each day will commence at 09.00 and finish at 17.00, with appropriate refreshment breaks.

To register for this training, please email team@sassofia.com or Call +359 28210806

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