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ARP4761, Guidelines for Conducting the Safety Assessment Process on Civil Aircraft, Systems, and Equipment is an Aerospace Recommended Practice from SAE International. [1]
This diagram illustrates the nested/interlocking domains or factors that make up the 5M model used for troubleshooting and risk assessment, especially in traffic industries. Man, Machine, and Medium form three interlocking circles, with Mission at the intersection, and the space surrounding them representing the prevailing Management approach.
graph with an example of steps in a failure mode and effects analysis. Failure mode and effects analysis (FMEA; often written with "failure modes" in plural) is the process of reviewing as many components, assemblies, and subsystems as possible to identify potential failure modes in a system and their causes and effects.
A fault tree diagram. Fault tree analysis (FTA) is a type of failure analysis in which an undesired state of a system is examined. This analysis method is mainly used in safety engineering and reliability engineering to understand how systems can fail, to identify the best ways to reduce risk and to determine (or get a feeling for) event rates of a safety accident or a particular system level ...
The management of unintended states is vital since they can result in serious aircraft accidents. For example, navigation problems on the cockpit display may lead a pilot to make an incorrect decisions, potentially causing injuries or fatality to passengers and crew members alike.
List of aircraft accidents and incidents caused by structural failure; Date Accident/incident Location Aircraft Cause Fatalities Notes 1913-08-07 Death of S F Cody: United Kingdom Cody Floatplane "inherent structural weakness" 2 Broke up 1919-08-02 Airliner crash at Verona: Italy Caproni Ca.48: Wing flutter followed by wing collapse
There are four layers in this model: organizational influences, unsafe supervision, precondition and unsafe acts. Organizational influences: This layer is about resources management, organizational climate and organizational process. For example, a crew underestimating the cost of maintenance will leave the airplane and equipment in bad condition.
Fault detection, isolation, and recovery (FDIR) is a subfield of control engineering which concerns itself with monitoring a system, identifying when a fault has occurred, and pinpointing the type of fault and its location. Two approaches can be distinguished: A direct pattern recognition of sensor readings that indicate a fault and an analysis ...