Originally Posted by mnbp

complete (16 of 16, 100%)
n661us (5/23/2012)
n662us (3/28/2012)
n663us (4/10/2012)
n664us (4/23/2012)
n665us (6/7/2012)
n666us (5/22/2012)
n667us (8/1/2012)
n668us (6/28/2012)
n669us (10/4/2012)
n670us (1/25/2012)
n671us (8/14/2012)
n672us (9/4/2012)
n673us (11/13/2012)
n674us (7/9/2012)
n675nw (9/16/2012)
n676nw (10/17/2012)

in mods (0 of 16, 0%)
(none)

unmodified (0 of 16, 0%)
(none)

sources: Flyertalk, flightaware.com, planespotters.net and seat maps.