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A Guide to APU Health Management
- Aerospace Standard
Published October 17, 2011 by SAE International in United States
Downloadable datasets availableAnnotation ability available
The SAE Guide to APU health management establishes the foundation for developing a successful APU health management program at any aircraft or APU operator, such as an airline, an OEM, an equipment supplier, or a military transport unit. This guide identifies the best practices for using an APU health management program to improve dispatch reliability and to satisfy Extended Operations (ETOPS) availability requirements.
This guide was developed to assist Auxiliary Power Unit (APU) operators in identifying the key steps in establishing and maintaining a successful APU health management program that meets both the economic and the technical requirements of their business. This guide was developed for all APU operators or life-cycle owners, such as commercial operators, Original Equipment Manufacturers (OEM), equipment suppliers, and military transport units.
|Aerospace Standard||Aircraft Gas Turbine Engine Health Management System Development and Integration Guide|
|Aerospace Standard||Trimmable Horizontal Stabilizer Actuator Structural Load Path Integrity Monitoring Principles|
Data Sets - Support Documents
|Unnamed Dataset 1|
|TABLE 1||TYPICAL APU FUNCTIONAL FMEA|
|TABLE 2||EQUATIONS FOR CORRECTING MEASURED PARAMETERS|
BackgroundEngine condition monitoring and rotorcraft HUMS(Health and Usage Monitoring Systems)can be used as a tool to track and restore engine performance, improve problem diagnosis, suggest solutions, promote better commercial and military aircraft operation, minimize in-flight failures, and reduce costs of engine maintenance. Because of these and other continuing objectives, the need for consolidated action by a group of experts to promote engine monitoring and rotorcraft condition monitoring know-how and standards was identified. It was deemed appropriate by the SAE Propulsion Division to assign this task to a special committee designated as Committee E-32. The committee has existed for over 40 years and has 26 active members. Purpose / Charter E-32 Committee serves as a forum to gather, record, and publish expert information in the discipline of aerospace propulsion system health management. The Committee gathers and analyzes requirements for propulsion system health management for the various types of air vehicle propulsion systems and develops standards and recommendations for the adoption of aerospace propulsion system health management devices that affect the operation of propulsion systems. Objectives Identifies potential propulsion system parameters suitable for sensing (pressure, temperature, vibration, etc.) and considerations involved in selecting parameters (potential problems, accuracy, cost, etc.), Analyzes the various approaches to aerospace propulsion system health management (e.g., airborne vibration health management systems, fault prediction capabilities, ground software interfaces, etc.) and establishes criteria for cost effective systems, and guidance regarding best practices for designing propulsion health management systems, Develops appropriate standards for aerospace propulsion system health management equipment and techniques; e.g., types of sensors, identification of signals which should be led to common diagnostic connectors, etc., Develops new requirements and uses for aerospace propulsion system health management to promote sustainable and cost effective operation of air vehicles, and Hosts technical conferences related to health management of propulsion systems. Provide a means to gain regulatory approval for utilizing EHM data in a range of maintenance activities.
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