431 resultados para Public safety radio service


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Mode of access: Internet.

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"Issued: May 22, 1962"--Cover.

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"Issued: May 22, 1962"--Cover ; "1961"--Title page.

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"DOE/EV/06020-T4."

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"DOE/EV/06020-T5."

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The goal of this National Transportation Safety Board study was to better understand the risk factors associated with accidents that occur in weather conditions characterized by IMC or poor visibility ("weather-related accidents"). The study accomplished this goal using the case control methodology, which compared a group of accident flights to a matching group of nonaccident flights to identify patterns of variables that distinguished the two groups from each other. This methodology expands on previous Safety Board efforts that have typically concentrated on summaries of accident cases. For this study, Safety Board air safety investigators (ASI) collected data from 72 GA accidents that occurred between August 2003 and April 2004.

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"NTSB/SR-06/02."

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"Notes and references": p. [215]-235.