DBP:-
Tuc has already said he would use his engineering judgment to use outdated CA instructions over current regs,
You need to see the woods for the trees with respect, DBP. The CA Instructions were not outdated, they worked but were arbitrarily scrapped in favour of new CDPIs which were simply wrong, as tuc explains.
That is why he had to continue using CAIs despite them being scrapped. That is why there were now no working mandated regulations to abide by. That is why build standards could no longer be maintained. That is why Safety Cases stopped working. That is why Nimrod happened, that is why the Mk10 seat killed, all because the CAIs were withdrawn and not reintroduced.
That is why there are such large gaps in the MAA Glossary. That is why there are such large gaps in its corporate knowledge. That is why airworthiness related accidents continue to happen and to kill. That is why reform is so urgent. That is why the independence of the MAA must be the starting point of that process.
Self Regulation Doesn't Work and in Aviation It Kills!