American Airlines A321-231 (N114NN) taxiing out at New York-JFK New York on flight
#AA300 to Los Angeles with 109 pax was damaged when its left outer wing struck a sign leaving a large dent on the wing.
Despite the damage, the flight took off.
The pilots then contacted the New York Center controller and stated their intentions to return to JFK Airport, citing they had a "strong roll to the left" on departure