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ETOPS
Rules for aircraft with a failed engine / From Wikipedia, the free encyclopedia
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ETOPS (/iːˈtɒps/) is an acronym for Extended-range Twin-engine Operations Performance Standards, which are safety standards developed by the International Civil Aviation Organization (ICAO) for twin-engine commercial passenger aircraft operations. They are a safety measure intended to ensure that in the event of a single engine failure, an aircraft will still be able to reach a diversion airport using the remaining operational engine. This may be at a reduced speed and/or height, and usually applies to flights over water or remote lands, typically routes previously restricted to three- and four-engine aircraft.[1]: page9
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