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Path: utzoo!watmath!clyde!akgua!mcnc!philabs!cmcl2!floyd!vax135!cornell!uw-beaver!ssc-vax!alcmist
From: alcmist@ssc-vax.UUCP (Frederick Wamsley)
Newsgroups: net.rec.skydive
Subject: Re: Three Ring Alert
Message-ID: <75@ssc-vax.UUCP>
Date: Mon, 16-Apr-84 21:39:04 EST
Article-I.D.: ssc-vax.75
Posted: Mon Apr 16 21:39:04 1984
Date-Received: Fri, 20-Apr-84 00:39:53 EST
References: <203@brl-vgr.ARPA>
Organization: Boeing Aerospace, Seattle
Lines: 19

<even ibm fixes bugs *sometimes*>
more 3-ring info:
     bill booth, who manufactures 3-ring release systems, has issued
instruction on how to deal with harnesses containing possibly defective
releases.  the u.s. parachute association has publicized and approved his
recommended procedures.
     -the circular bottom rings are safe (old style).
     -square-bottom large rings stamped rw-1-81 and rw-1-84 are safe.
     -rings stamped rw-1-82 and rw-1-83 should be pull-tested and/or
replaced.  the jump shack is offering to do pull-testing, or you can 
say the hell with it and replace them without testing them. booth
is making replacement rings available to harness manufacturers free.
i would recommend contacting the shop that built your rig to arrange
testing/repair.
     if you know somebody with a machine shop--the testing *must* be
observed by a licensed senior or master rigger.  get booth's instructions
on how to conduct the test.
				 fred wamsley
				 d-8844