Twin-engine propeller aircraft accidents occur for many reasons including misidentifying a failed engine. Pilots learn to use a procedure called dead leg-dead engine to identify the failed engine; however, misidentification of the failed engine still occurs, questioning the effectiveness of this procedure. Two surveys were created. Survey 1 was completed by 49 airline pilots operating twin-engine turboprop aircraft; Survey 2 was completed by 22 instructor pilots operating twin-engine piston aircraft. Survey 1: Average flight time was 6,230 hours. Approximately 19% of respondents reported using the Engine-Out procedure at least once. Twenty-nine percent agreed that there could be a better method for failed engine identification. Survey 2: Average flight time was 420 hours. Half of respondents reported using the Engine-Out procedure at least once. Fourteen percent agreed that there could be a better method for failed engine identification. Forty percent of all respondents who suggested improvements recommended adding a visual indicator.
Babin, A. K.,
& Dattel, A. R.
(2021). Identification of a Failed Engine in Twin-Engine Propeller Aircraft: Pilot Surveys. 23rd International Symposium on Aviation Psychology, 280-285.