Originally Posted by
tdracer
Not uncommon - the 747-400 CDL allows dispatch without one (or both) winglets. Again, small performance penalty.
I don't know about the 737 winglets (didn't spend much time working the 737), and the 757 and 767 winglets are aftermarket STC so I don't know about those either.
It’s been a while while but I’m fairly sure that the CDL only allows 1 Winglet removed on the 744.