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Evidence for an Issue 4 pieces of evidence for this issue.

failure recovery may be difficult (Issue #23) - When automation fails, pilots may have difficulty taking over monitoring, decision making, and control tasks.

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  2. Evidence Type: Excerpt from Experiment
    Evidence: "When asked to report on the difficulty and ease of diagnosing and recovering from autopilot failures experienced during their experimental session, our subjects unanimously agreed that runaway pitch trim was the most difficult from which to recover. The most difficult failure to diagnose was spilt across three: ADI, pitch sensor, and runaway pitch trim, with each failure receiving 27% of the votes. Pitch sensor was voted the easiest to diagnose by 46% of the subjects, with runaway pitch trim being cited by 36%. Pitch sensor was voted easiest to correct by 56% of the subjects." (page 78)
    Strength: +3
    Aircraft: unspecified
    Equipment: autoflight: autopilot
    Source: Beringer, D.B., & Harris, H.C., Jr. (1999). Automation in general aviation: Two studies of pilot responses to autopilot malfunctions. International Journal of Aviation Psychology, 9(2), 155-174. Lawrence Erlbaum Associates. See Resource details

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  4. Evidence Type: Excerpt from Survey
    Evidence: 17 of the 30 (57%) respondents reported a 4 (= agree) or 5 (= strongly agree) with pc023 failure recovery may be difficult
    Strength: +3
    Aircraft: unspecified
    Equipment: automation
    Source: Lyall, E., Niemczyk, M. & Lyall, R. (1996). Evidence for flightdeck automation problems: A survey of experts. See Resource details

  5.  
  6. Evidence Type: Excerpt from Survey
    Evidence: 7 of the 30 (23%) respondents reported a 1 (=strongly disagree) or a 2 (=disagree) with pc023 failure recovery may be difficult
    Strength: -1
    Aircraft: unspecified
    Equipment: automation
    Source: Lyall, E., Niemczyk, M. & Lyall, R. (1996). Evidence for flightdeck automation problems: A survey of experts. See Resource details

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  8. Evidence Type: Excerpt from Incident Study
    Evidence: In our review of 282 automation-related ASRS incident reports, we found 2 reports (1%) supporting issue023 (failure recovery may be difficult).
    Strength: +1
    Aircraft: various
    Equipment: automation
    Source: Owen, G. & Funk, K. (1997). Flight Deck Automation Issues: Incident Report Analysis. http://www.flightdeckautomation.com/incidentstudy/incident-analysis.aspx. Corvallis, OR: Oregon State University, Department of Industrial and Manufacturing Engineering. See Resource details
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