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165 points starkparker | 3 comments | | HN request time: 0.691s | source
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thomascountz ◴[] No.44525985[source]
> We determined that the probable cause of this accident was the in-flight separation of the left MED plug due to Boeing’s failure to provide adequate training, guidance, and oversight necessary to ensure that manufacturing personnel could consistently and correctly comply with its parts removal process, which was intended to document and ensure that the securing bolts and hardware that were removed to facilitate rework during the manufacturing process were properly reinstalled.

A bit OT, but what a gorgeous whale of a sentence! As always, the literary prowess of NTSB writers does not disappoint.

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CGMthrowaway ◴[] No.44526208[source]
AKA Boeing did not train, guide or oversee its people well → Workers skipped the process meant to keep track of bolts and hardware → The bolts for the mid-exit door were never put back → At 14K feet, the door blew free.
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1. gtech1 ◴[] No.44526720[source]
Physics question: why do I know (maybe wrongly) that in flight the doors are sealed shut by the difference in pressure ? And if so, why did it not work in this case ?
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2. BobaFloutist ◴[] No.44526751[source]
I don't know the answer for this specific case, but the pressure is high on the inside and low on the outside. If you have a hinted door that opens inward, then pressure will keep it shut. If you install the door wrong and forget to attach the hinge properly, it could be blown outward.
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3. gtech1 ◴[] No.44527098[source]
don't all doors open outwards on airplanes ?