LR. Did any ground tradesman sign for the A/F, and did that A/F, iaw bla bla bla, require a seat check?
Yes... but I repeat again...it is the responsibility of
every person entering or working in the cockpit to check that the seat is safe !
It is easy to be wise after the event - this accident has re highlighted a previous problem vis a vis the possibility of fitting the pin through a sph which is out of its housing.
It is a shared responsibility,ground tradesmen never touch that pin - it is a visual check !
As I said previously - it is easy to be wise after the event... I am still seeing quite a few people who have never made a mistake or missed a check in their lives !