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This AIR lists and describes a collection of regulations, policy, and guidance documents applicable to design approval applicants, aircraft operating certificate holders, and maintenance repair and overhaul (MRO) organizations. The aircraft industry should consider these rules when installing IVHM technology for use in aircraft maintenance. This is a starting basis and should not be considered as complete when certification of an IVHM system is expected. The AIR’s objectives are: 1 To set the foundation for aircraft certification applicants seeking to design IVHM solutions as part of the type certificate (TC), supplemental type certificate (STC), amended TC, or amended STC activities; and 2 To set the foundation for aircraft operating certificate holders to engage with regulators to get authorization for using IVHM applications as part of an aircraft maintenance program. NOTE: This AIR’s scope is limited to the United States (U.S.)

To establish a specification for software input and output interfaces for condition monitoring and performance programs used to monitor equipment from multiple manufacturers. The purpose of standardizing these interfaces is to improve operational flexibility and efficiency of monitoring systems as an aid to cost effectiveness (e.g., easier implementation).

This Surface Vehicle & Aerospace Recommended Practice offers best practices and a methodology by which IVHM functionality relating to components and subsystems should be integrated into vehicle or platform level applications. The intent of the document is to provide practitioners with a structured methodology for specifying, characterizing and exposing the inherent IVHM functionality of a component or subsystem using a common functional reference model, i.e., through the exchange of design-time data and the application of standard vehicle data communications interfaces. This document includes best practices and guidance related to the specification of the information that must be exchanged between the functional layers in the IVHM system or between lower-level components/subsystems and the higher-level control system to enable health monitoring and tracking of system degradation severity.