Risk of Operational Consequences of Aircraft System Failure
Volume 6, Number 2, March 2010 - Paper 4 - pp. 149-158
A. AHMADI , U. KUMAR and P. SÖDERHOLMDivision of Operation and Maintenance Engineering,
Luleå University of Technology, SE-971 87 Luleå, Sweden
(Received on April 17, 2009, revised November 03, 2009)
The purpose of this paper is to describe a methodology for the identification of different operational consequences and associated costs, caused by known or suspected technical difficulties or malfunctions caused by aircraft system failure, in order to facilitate and enhance the capability of taking correct and efficient decisions for design of required maintenance tasks, analysis of cost-effectiveness, and possible design modifications. To identify the operational consequences of the technical interruption of failures, empirical studies of possible scenarios involving aircraft failures and their operational consequences for a commercial airline have been performed. Empirical data were extracted through document studies and interviews, guided by the application of an Event Tree Analysis (ETA). The study was performed together with experienced practitioners from an aircraft manufacturer and commercial airlines, which contributed to a verification of the study's outcome.
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