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The TSO authorization (also called TSOA) or a letter of TSO Design Approval does not necessarily convey approval for installation. [2] Similar standards are maintained by other aviation authorities. For example European Technical Standard Orders (ETSO) by EASA for the European Union, [3] with limited reciprocal equivalence on a per-country ...
This evidence is usually in the form of an Assist Letter provided to the applicant by the OAH. PMA may also be granted based upon prior approval of an STC . As an example: If an STC were granted to alter an existing aircraft design then that approval would also apply to the parts needed to make that modification.
Having obtained a Type Design approval, a manufacturer may need to change the approved design. 14 CFR § 21.93 classifies type design changes as either major or minor. It is the manufacturer's responsibility to first determine and notify the FAA whether a proposed type change is major or minor, subject to FAA review.
Vehicle type approval is the confirmation that production samples of a design will meet specified performance standards. [4] Traditionally, there are two systems of type approval in Europe. The first one is based on the EC directives and regulates the approval of whole vehicles, vehicle systems, and separate components.
Appearance Approval Report A copy of the AAI (Appearance Approval Inspection) form signed by the customer. Applicable for components affecting appearance only. Sample Production Parts A sample from the same lot of initial production run. The PPAP package usually shows a picture of the sample and where it is kept (customer or supplier). Master ...
The determination of whether a proposed change in design, power, thrust, or weight to an existing type certified aircraft, engine, or propeller is acceptable under a STC is proposed by the design holder, and subjected to the approval of the local civil aviation authority.
The choice is determined by considering whether or not the change constitutes a new design (i.e. introduces risk not considered in the first type design). If so, then type design holder must develop and approve a modification to the type design. If the regulatory authority agrees the change does not introduce new risk, the STC option is available.
product certifications (many nations) Product certification or product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications (sometimes called "certification schemes" in the product certification industry).