Sofema Aviation Services (SAS) www.sassofia.com reviews the guidance material – Ref GM 21.A.91 EASA Classification of changes to a type-certificate (TC) (ED Decision 2019/018/R). Introduction – Complementary guidance for classification of changes. A change to the TC is judged to have an ‘appreciable effect on the mass, balance, structural strength, reliability, operational characteristics, noise, fuel…

Sofema Aviation Services (SAS) www.sassofia.com considers the changes related to the Cabin certification of EASA Compliant Aircraft Minor & Major Cabin Modifications. Introduction EASA’s Comment – To better mitigate any safety risks due to selective investigations and to improve the effectiveness, transparency and predictability of the certification process, certain selection criteria should be provided to allow…

Sofema Aviation Services (SAS) www.sassofia.com considers the Operational Suitability Data (OSD) changes which will be introduced following the issue of Certification Specifications for Maintenance Certifying Staff Data ‘CS-MCSD — Issue 1 Introduction The objective of Decision 2020/019/R is to improve the level of safety by requiring the applicant for a type certificate (TC) or a restricted…

CS 25 Structural – Crashworthiness Considerations – Introduced by Sofema Aviation Services (SAS) www.sassofia.com  Using the Acronym – CREEP (occupant protection/survivability): C = Container R = Restraint E = Environment E = Energy absorption P = Post-crash factors Review of CS-25 Structural Crashworthiness Regulations Minor crash landing (on land or on water) Occupant (passengers, flight,…