I tried to bag and then evacuate the leaking 12" CFF flange so at to reduce the leak rate until this can be repaired in NOV. but my attempt was thwarted by the unique fabrication of this 10" nozzle.  As Gerardo M. pointed out to me later, the nozzle roll has a vacuum weld on the interior of the roll seam and an external stitch weld.  This is unexpected as all "normal" port nozzles utilize full penetration seam welds.  The net effect of this is that a channel is left on the external side of the seam and this channel makes it impossible to seal a bag against (without cheating and using some sort of fluid sealer).  I'll point this unique detail out to Chandra R. next week and she can decide if the benefit of potentially reducing the leak rate is worth the use of :the required fluid sealant.