Downloaded from https://www.everyspec.com ADS-43A-HDBK 1.1 INTRODUCTION 1.1.1 Purpose Public Law 100-456, section 805b, requires that alternate sources comply with the same qualification requirements as those of the original source. “In procuring any spare or repair part that is critical to the operation of an aircraft or ship, the Secretary of Defense should require the contractor supplying such part to provide a part that meets all appropriate qualification and contractual quality requirements as may be specified and made available to prospective offerors.
In establishing the appropriate qualification requirements, the Secretary of Defense should utilize those requirements, if available, which were used to qualify the original production part, unless the Secretary of Defense determines in writing that any or all such requirements are unnecessary.” Potential alternate manufacturing sources of aircraft engine parts, components, or assemblies are required to provide substantiation that the specific item offered meets or exceeds the identical item furnished by the original manufacturer in terms of service life, strength, durability, form, fit, and function.
The substantiation requirements for alternate manufacturing source approval are included in this document. Candidates for alternate source approval are required to submit to Army Aviation and Troop Command (USAATCOM), Engineering Directorate a plan designed to meet the substantiation requirements. The USAATCOM Engineering Directorate will review the plan to insure that the proposed testing is sufficient to determine that the item to be manufactured will be equivalent to the original.
The Engineering Test Table (ETT) in the Flight Safety Parts Information System (FSPIS) lists the testing that is normally required for alternate sources which use material, castings, forging, and process sources approved by the prime contractor or government for the item in question. Flight Safety Parts (FSP) and critical characteristics are identified. A potential alternate manufacturing source requesting approval is required to submit written substantiating data on a part, component, or assembly to become a qualified vendor.
This data should include, but not limited to, the candidates capability to manufacture the item, a manufacturing plan (including sources for forging, castings, etc.), and a test plan to satisfy engineering test requirements. After USAATCOM engineering examines the data and determines that the alternate source is capable of manufacturing the item in accordance with all of the existing requirements, the alternate source will be added to the Potential Suppliers List. Should the alternate source bid successfully, all quality assurance requirements, qualification tests, and engineering tests must be completed prior to delivery of parts to the procuring agency.
At the discretion of USAATCOM engineering, previous suppliers who have not completed the engineering test may be required to do so prior to the delivery of additional parts. 2