727 with winglets??

Date:         16 Mar 2001 05:56:23 
From:         Merlin Dorfman <dorfman@rahul.net>
Organization: a2i network
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     While stuck in traffic this week, I'm sure I saw a 727 with
winglets on approach to San Jose airport.  I was right under the
plane and so could not see any markings.
     Is there such an aircraft?  If so, who operates it?  (Cargo
                                        Merlin Dorfman