SAE AIR 5273 : 2007

SAE AIR 5273 : 2007

ACTUATION SYSTEM FAILURE DETECTION METHODS

SAE International

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Table of Contents

1 Scope
   1.1 Purpose
2 References
   2.1 Applicable Documents
   2.2 Related Publications
   2.3 Definitions
       2.3.1 Acronyms and Abbreviations
3 Background
   3.1 Evolution
   3.2 Avoiding the 'Nuisance-Disconnect'
   3.3 Architecture and Application
       3.3.1 Cross-Channel Versus In-Line Monitoring
   3.4 Designing 'By the Numbers'
       3.4.1 Probability of Failure
       3.4.2 Fault Coverage
       3.4.3 Commercial Aircraft Failure Criticality and Probability
       3.4.4 Military Aircraft Failure Criticality and Probability
   3.5 System Separation
   3.6 Fighting Between Redundant Commands to a Surface

Abstract

Describes aircraft actuation system failure-detection methods. The methods are those used for ground and in-flight detection of failures in electrohydraulic actuation systems for primary flight control. The AIR concentrates on full Fly-By-Wire (FBW) flight control actuation though it includes one augmented-control system.

General Product Information

Document Type Standard
Status Current
Publisher SAE International
Committee A-6A3

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