Wonder if the 787 implemented the same method. ?? IMHO - I doubt it. It takes a long time to coordinate with ALL the suppliers, provide the tape, etc
Can't speak for the whole thing, but the bit I worked on (very early line numbers) the trailing leads for my system were coiled and taped up with the connectors nicely done up in a protective plastic bag.
Would be good for Boeing to become transparent about this whole issue....
I'm sure they will be, once all the facts are in. I'm not sure if you mean about testing, but humidity tests for electrical equipment are standard across the industry - either to DO160 or the manufacturer's in-house standards.