What is the validity of a Non Technical Objection (NTO) statement from Airworthiness point of view?
NTOs are usually used in the context of Flight Condition approval process. Nevertheless, if there is a connection between two organisations that are concurring on the same topic, the primary Design Organisation could issue an NTO to confirm that there is no safety impact on the existing design. In that case the NTO will support the compliance demonstration without constituting in itself a Means of Compliance. The responsibility of the new design relies ultimately on the Applicant.