Boeing 787 chief project engineer Mike Sinnett says in hindsight he would have â€śchallengedâ€ť the test assumptions in the evaluation and certification phase of the main and auxiliary power unit lithium-ion batteries for the 787. â€śWe had a battery supplier with a lot of experience, and with a test method that was state of the art,â€ť Sinnett said yesterday during the opening session of a two-day NTSB hearing into the failure of a Japan Airlines 787 auxiliary battery at Boston Logan ...
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