Sofema Aviation Services (SAS) www.sassofia.com looks at the Declaration of Design and Performance (DDP) process and the information which is required to support the process. Introduction – What is a DDP and what information should it contain? DDP stands for Declaration of Design and Performance. It is the central summary document containing the definition and…

Aircraft Cabin Safety Certification Large Aeroplane Interior Modifications and Repairs Major & Minor Classification of Interior Changes & Repairs – Large Aeroplanes Classification of interior changes and development of Supplemental Type Certificates (STC) Sofema Aviation Services (SAS) www.sassofia.com provides an industry-leading 5-day EASA CS 25 Compliant Cabin Certification & Mods Training Program. Introduction Any changes…

CS25 Airworthiness Code – Consideration by Sofema Aviation Services (SAS) www.sassofia.com Introduction The European Union (EU) has decided that only legally binding implementing rules (Hard Law) for airworthiness, in compliance with the Basic Regulation, can only be adopted by the European Commission having received an opinion from the EASA for that purpose. Airworthiness codes, i.e….

CS 25 Introduction to Airworthiness – Safety Assessment – Consideration by Sofema Aviation Services (SAS) www.sassofia.com Introduction Related to Failure Condition Classification For large airplanes, the airworthiness standards (CS/FAR-25), require fail-safe structures, except when it is not possible to implement such a design due to geometrical restrictions. An example of such a case is the…