From one piece Flight Rationale 3 beliefs, in the piece's order there
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korrents.com
Engineers will always ask for more data, so someone has to decide without certainty and own the risk to human life.Their words
The engineers will always always always ask for more tests, more analysis, more time to get more information to be more certain of their conclusions.
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korrents.com
A declared root cause is a best guess, not a fact, and should be treated with suspicion.Their words
Always take the determination of ‘root cause’ with a grain of salt.
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korrents.com
Spaceflight is not safe by any ordinary standard of safety, and pretending otherwise is what kills crews.Their words
Before getting too far, remember this constant in space flight: it is not safe by any ordinary consideration of safety.