Has any ICAO-required report , ever, been found to be false or fabricated?
This is a suggestive question, but an interesting one.
You don't necessarily have to 'falsify' a report. But you can raise exaggerated attention to some minor details or protagonist (you will always find some) as to divert from the real holes in the Swiss cheese.
Has been done in the past to protect the biggies involved. It basically 'can never be' the manufacturers, the airline, the country with its regulator. Too much interest and money involved.
That leaves the active crew and the weather.
The weather has been ghastly, agreed, but it had been like that many times before and even worse, the sandpit is known for these effects. Blame it on the weather and make a fool out of yourself.
The crew has one particular component that involves the biggies' interests mentioned above. So i fear that the other component will get the major share. If you think his union will protect him, think twice ..... I don't believe it one second. Their company depends too much of the one involved and all three will gladly pick on the handy scape goat.