March 29, 2022

sasadmin

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…