SS wire rigging replacement interval

[benz]

Can anyone point to a printed source other than the WM catalog that gives guidelines for a recommended replacement interval of swaged SS wire rope? Backstory: I work on a 37-ton schooner in Newport, RI, which we are expected to "Sail the snot out of". The shrouds (3/8 1x19, if I guess correctly), are original to the boat (2004). Last season the jibstay began popping strands at the fitting aloft, which I caught during a routine inspection, and was replaced. I am agitating strongly to have all the wires of the same vintage replaced, as well as the SS bottle screws which trap water inside them. This is meeting with some resistance, even though the cost seems to me negligible compared to the consequenses of losing a mast. If there is a written source from a manufacturer or some engineering data that clearly spells out the expected life of SS wire in a heavy use environment, I might be able to sway cheapness with reason. Thanks, all.
Ben

[Brion Toss]

Hello,
And condolences on the need to press for replacing that rigging. Obviously you are right, and perhaps even righter than you know. The best testing has been done by Navtec, and you can find things summed up here: http://www.pcmarinesurveys.com/Riggi...%20service.pdf.
As you will see, rig life is determined by load cycles, climate, amplitude, etc.
Two other things to consider: 1. The jibstay is probably the highest loaded piece of the rig, so maybe -- just maybe -- you've gotten a bit of advance warning on the state of everything else. 2. Quality of wire, of swage, relative wire size, and state of tune can also accelerate rig failure. These are unknown, and you might well be even closer to catastrophe than Navtec's data indicates.
A close and meaningful inspection of the remaining components, including chainplates and mast(s) would be really, really prudent now. If this is a passenger-carrying vessel, we can hope that some of our trainees with the Coast Guard might chime in. Meanwhile, for what it is worth, I will add that, in my personal estimation, anyone who is resisting a comprehensive rig replacement is not thinking clearly.
Fair leads,
Brion Toss

[benz]

Thanks for that link, Brion. If I can't be persuasive enough to get the rig updated, I can at least have a paper trail on file stating that I did my utmost to have it done. I keep hoping the Coasties who do a yearly inspection will start asking questions about the rigging, but all they do in that regard is check for meathooks in the span wires.
Pressing on, and hoping for the best.
Ben

[Brion Toss]

Hi again,
What sector are you in?
Fair leads,
Brion Toss

[benz]

Boston, I believe? I'm in Newport, RI, and the inspectors are always the same guys, and we have two local CG bases.
Ben