Human Factors: American Airlines Flight 1420

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Human Factors – American Airlines Flight 1420
Stephen G. H. Chavez
Embry-Riddle Aeronautical University
SFTY 330 – Aircraft Accident Investigation
06 October 2017 Abstract
Human factors in one way or another has contributed to every single aircraft accident that has ever occurred (Wood & Sweginnis, 2006) Not only were they involved in the June 1, 1999 landing runway overrun of American Airlines flight 1420, but there were two significant human factors that the National Transportation Safety Board (NTSB) declared as the probable cause for the accident. First, the NTSB determined that the probable causes of American Airlines Flight 1420 was the flight crew’s failure to abort or divert the attempted landing when the warnings of severe …show more content…

The aircraft struck multiple obstructions after leaving the paved runway including part of the instrument landing system localizer and the security perimeter fence before falling another 15 feet over a rock embankment into a flood plain where in collided with the supporting structure of the runway approach lights. The post-crash fires and impact completely destroyed the aircraft and lead to the death of 11 people, including the captain, and injured 107 more. The NTSB has determined that the probable cause of the accident was two-fold and both classified as human factors/errors. The first factor is the aircrew’s refusal to adhere to the severe weather warnings issued regarding the thunderstorms and crosswinds surrounding Little Rock National Airport. Additionally, after touching down on the airfield, the flight crew failed to ensure proper spoiler extension. Both causes will be looked at using the human factors analysis and classification system, or HFACS to determine the relevancy and severity of the acts performed, or not performed, by the aircrew as it relates to the final

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