I managed to get my hands on PVHO 1 and 2 and I think trawling through them might give me the correct answer I am looking for. I will update this thread if I get anywhere with it!
Cheers,
S.
Morning all, first time poster, long time lurker.
Quick question regarding the modification of a welded boss inside a sat dive system. Current boss has threaded holes which are severely corroded, plan is to re-drill and tap. My question is regarding how to classify these bosses, they severe no...