U.S. Army Aviation and Troop Command ADS-43A-HDBK — 1.1 INTRODUCTION

Downloaded from https://www.everyspec.com ADS-43A-HDBK 1.1.2 Implementation This document should be used in conjunction with the Spares Technical Data Package (STDP) for a particular part to specify the substantiation requirements a component or assembly must comply with. The guidance contained in this publication, in conjunction with the TDP, will be utilized in place of any qualification document issued by the prime design control contractor or the original manufacturer and referenced on a part, component, or assembly drawing(s). Significant differences between this document and other applicable qualification documents should be brought to USAATCOM engineering’s attention for resolution.

The First Article Test (FAT) item, and all production parts, components, or assemblies must, of course, remain subject to all contract requirements. Note also that reverse engineering of FSP is prohibited by ATCOM policy. Waivers, deviations, plans, and reports required by this document should be approved by USAATCOM engineering in writing in order fulfill substantiation requirements. 1.1.3 Use of Alternate Suppliers/Processors Use of suppliers or processors (subcontractors) that are not approved sources for material, forging, castings, or processing may require additional substantiation testing and/or engine qualification test.

Public Law loo-456 requirements also apply to subcontractors as defined above. Proposals from these sources must be reviewed by USAATCOM engineering for approval. 1.1.4 Definitions Alternate Manufacturing Source - A source for a part, component, or assembly who was not originally approved to manufacture such a part, component, or assembly but is now approved. Assembly - A combination of parts and/or components which constitute an identifiable functional constituent of a larger assemblage, or can perform a specific function on its OWIL - Usually made up of two or more parts which can be further subdivided but cannot perform a specific function without the aid of other components.

Component - any feature throughout the life cycle of a FSP such as dimension, tolerance, finish, material; assembly, manufacturing or inspection process; operation, software, field maintenance, or depot overhaul requirements, which, if nonconforming, missing, or degraded could cause the failure or malfunction of the FSP. Critical characteristics produced during the manufacturing process are termed Critical Characteristics 3