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… installed on SWR 111 employed a continuous-loop magnetic tape of 30 minutes duration. The earliest information on the … available in the early 1960s; this was the amount of tape that could be crash-protected. The Board is concerned … operators are voluntarily replacing their old technology (tape) data and voice recorders with modern, solid-state …
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… Parts Manufacturer Approval (hereinafter simply known as PMA) can be installed on aeronautical products for which the … design. (d) Except as provided in (e), (f), (g) and (h), PMA parts can be installed on other aeronautical products … that is not of US type design and that was operated with PMA parts installed while the aircraft was under the …
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