American Airlines Flight 2253 Case Study Essay

Decent Essays
This case study discusses in great detail the December 29th, 2010, incident involving American Airlines flight 2253. This aircraft is a Boeing 757-200 with the registered tail number of N668AA. Upon landing, this large commercial airliner ran off the departure end of runway 19 and came to a gentle stop in deep snow at Jackson Hole Airport, Jackson Hole, Wyoming. The occupants were not injured, and the airplane sustained minor damage (NTSB, 2010). The subsequent accident investigation revealed some areas of improvement in regards to pilot training, systems operation or in-operation, and proper emergency situations. As a result of this investigation, three new safety recommendations are issued and three existing safety recommendations are reiterated to the Federal Aviation Administration (NTSB, 2010).

The Incident At about 1138 Mountain Standard Time on December 29, 2010, a American Airlines Boeing 757-200 tail number N668AA, flying as flight 2253, rolled
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During the incident landing the air/ground sensing system had a momentary interruption in the system from “ground” (once the wheels were down), back to “air”, and then back to “ground”. During this interruption, the thrust reversers locked out in transit. Once the crew manually recycled the system, it deployed as expected. However, this recycling of the system cost the airplane 18 seconds. The NTSB concludes that, although the momentary interruption of the air/ground system’s “ground” signal after touchdown would not normally adversely affect the deployment of thrust reversers, in this case it coincided almost precisely with the initial deployment of the thrust reversers and resulted in the thrust reversers locking in transit instead of continuing to deploy (NTSB,

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