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Evidence for an Issue 5 pieces of evidence for this issue.

data entry errors on keyboards may occur (Issue #71) - Keyboard alphanumeric data entry may be prone to errors, which may adversely affect safety.

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  2. Evidence Type: Excerpt from Incident Study
    Evidence: "The data presented in Table 4-1 suggest the same underlying problem: The crew fails to operate the FMS properly and, at the same time, fails to catch the error before an incident occurs." Table 4-1 shows the breakdown of the number of citations for various Flight Crew FMS Actions/Errors: Keyboard Errors - 15 citations (15%), Logic Errors - 3 citations (3%), Errors of Expectation/Interpretation (ATC related) - 12 citations (12%), Errors of Expectation/Interpretation (FMS logic related) - 27 citations (27%), and Mode control panel (MCP)/automation control selection errors - 18 citations (18%). [Total citations = 99, several categories are not listed in Table 4-1] (page 4.2)
    Strength: +1
    Aircraft: unspecified
    Equipment: FMS keyboard
    Source: Eldredge, D., Mangold, S., & Dodd, R.S. (1992). A Review and Discussion of Flight Management System Incidents Reported to the Aviation Safety Reporting System. Final Report DOT/FAA/RD-92/2. Washington, DC: U.S. Department of Transportation, Federal Aviation Administration. See Resource details

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  4. Evidence Type: Excerpt from Survey
    Evidence: 20 of the 30 (67%) respondents reported a 4 (= agree) or 5 (= strongly agree) with pc071 data entry errors on keyboards may occur
    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

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  6. Evidence Type: Excerpt from Survey
    Evidence: 3 of the 30 (10%) respondents reported a 1 (=strongly disagree) or a 2 (=disagree) with pc071 data entry errors on keyboards may occur
    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

  7.  
  8. Evidence Type: Excerpt from Incident Study
    Evidence: In our review of 282 automation-related ASRS incident reports, we found 1 reports (<1%) supporting issue071 (data entry errors on keyboards may occur).
    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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  10. Evidence Type: Excerpt from Survey
    Evidence: "Pilots with more than 500 hours on the A310 generally judged the aircraft more positively than those with less. ... - The arrangement of the FMS's [in sic] keys was fully accepted by the group having 500 hours, false inputs being considered possible nonetheless due to close location of parallel line-select keys. Fast slewing apparently would lead to stepping past pages, incorrect data format was often experienced. But the menu technique and scratchpad were highly appreciated, learning being best accomplished 'on the job'." (page 11.11)
    Strength: +1
    Aircraft: A310
    Equipment: FMS
    Source: Speyer, J.J., Monteil, C., Blomberg, R.D., & Fouillot, J.P. (1990). Impact of New Technology on Operational Interface: From Design Aims to Flight Evaluation and Measurement. Advisory Group for Aerospace Research and Development No. 301, Vol. 1. See Resource details
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