Fred...
         I would be concerned with this "flying lead" during vibration, but
  I will assume that you are tack bonding it down, but back to your question.
  We have been reworking Military pwb's forever or maybe longer and we
  isolate the lead from its land pattern as follows:

    1) Unsolder lead and lift from pad. Remove excess solder from pad
       and lead.
    2) Cut a piece of Kapton tape slightly larger than pad to be isolated 
       and apply over pad and under component lead.
    3) Apply epoxy to completely cover tape and component lead.
    4) Jumper as required.

         I don't beleive that this procedure is documented in a  Mil-Std
   rework spec, but it is in our Standard Repair Manual and has been
   approved by our customer/Military. Soldering a wire to a component lead 
   is documented in Mil-C-28809. I am not sure if there is an equivalent 
   IPC spec. Hope this helps...It works for us. If you want to discuss this
   please feel free to contact me.  
                                          Regards,
                                                      Bob Vanech
   

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