It is indeed a can of worms, more so a Pandora's box.
Will every maintenance manual by every OEM have to be rewritten to explicitly state what the mechanic has to do to check the integrity of every nut and bolt on every machine?
Are we now dealing with such incompetence on the shop floor and in the field that the mechanic cannot be trusted to carry out the most basic of tasks unless the maintenance manual tells him exactly what is required?
And By the By, the bolt in question was assembled incorrectly without the bonded washer or palnut fitted, Robinson had photos of assembly showing it assembled correctly at the factory
Having worked on R22 and R44, I dispute that their instructions for continuing airworthiness was/is deficient