Sofema Aviation Services (SAS) www.sassofia.com considers the treatment of Articles created through the Technical Standard Order (TSO) process as well as the treatment of PMA articles. Introduction to FAA TSO A TSO is a minimum performance standard for specified materials, parts, and appliances used on civil aircraft. When authorized to manufacture a material, part, or appliances to a TSO standard, this is referred to as TSO authorization. Receiving a TSO authorization is both design and…

Sofema Aviation Services (SAS) www.sassofia.com reviews a number of key issues related to the installation & certification of IFE systems. Introduction From the passenger perspective, In-Flight Entertainment (IFE) is essentially for other than low cost, short-haul travel. Typically delivered to seat-back screens as well as personal electronic devices (PEDs) via wireless access points. An IFE…

Sofema Aviation Services (SAS) www.sassofia.com considers the special arrangement between FAA & UK CAA IPA (Implementation Procedures for Airworthiness) covering Design Approval, Production and Surveillance Activities, Export Airworthiness Approval, Post Design Approval Activities, and Technical Assistance. Related to the FAA & UK CAA committed, to recognize the work accomplished by EASA before December 31, 2020…

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…