Sofema Aviation Services (SAS) www.sassofia.com considers the certification basis of changed aeronautical product Introduction EASA has collaborated with the Federal Aviation Administration (FAA) and Transport Canada (TCCA) on the further improvement of the guidance on the implementation of the ‘Changed Product Rule’ (Part 21.A.101). With this rule, EASA establishes the type-certification basis for changes to Type…

Sofema Aviation Services (SAS) www.sassofia.com considers the key terminology related to Aircraft Certification – System Safety Assessment Catastrophic Failure Condition: A failure condition that would result in multiple fatalities, usually with the loss of the airplane. Error: An omission or incorrect action by a crewmember or maintenance personnel, or a mistake in requirements, design, or implementation. Event: An…

Sofema Aviation Services (SAS) www.sassofia.com considers the Role & Purpose of ARP4754A Introduction ARP4754A serves to demonstrate with an adequate level of confidence that the project complies with the requirements defined by the reference CS and that errors in the design and implementation phases are identified and corrected so that the system meets the applicable Certification…

EASA mandates that organizations demonstrate their ability to establish and manage the competence of personnel engaged in maintenance, management, and/or quality audits. This should align with a procedure and standard endorsed by the relevant authority. Competence must include an understanding of the application of Safety Management System, Human Factors/Human Performance Issues appropriate to the person’s…