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Evidence from Resource 1 piece of evidence from this resource.

National Transportation Safety Board (1997). Wheels-Up Landing, Continental Airlines Flight 1943, Douglas DC-9 N10556, Houston, Texas, February 19, 1996. Aircraft Accident Report NTSB/AAR-97/01. Washington, DC: National Transportation Safety Board.

  2. Evidence Type: Excerpt from Accident Report
    Evidence: The GPWS unit installed in the airplane was a Mark I system, which only provided a generic "pull up" warning and did not provide a specific message about the reason for the alert. A Mark II system would have provided the warning "too low flaps." The Safety Board considers it unlikely that the captain’s decision to land would have been affected even if he had received the more specific warning, as he was already aware that the flaps were not extended. However, the captain’s statement that he interpreted the alerts as a high sink rate warning, and not as a configuration warning, illustrates the potential for misinterpretation of the less specific warning messages provided by the Mark I GPWS. (page 48)
    Issue: insufficient information may be displayed (Issue #99) See Issue details
    Strength: +4
    Aircraft: Douglas DC-9
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