Originally Posted by
BAengineer
I assume that the reason of the check not being mandatory is that there is no calibration adjustment possible on the aircraft - it either passes or it doesn't..
Exactly, the article is a pile of horse manure. No calibration is done, it comes calibrated from the shop and the screw holes line up where it goes.
if you read the full article and not just what is above the source of this information is not the Indonesian investigations, NTSB, or Boeing, they all declined to comment about this.
it comes from joe public who is “following the investigation”. They got their $1000 of click bait out of it.