Boeing 737 wing question?
On a recent flight to Paris from EGCC, my seat position gave me a view just to the rear of the trailing edge, the a/c was I think a 737/500, what I could not work out was the need for the tiny L shaped additions that seemed to be welded onto the area just backward of the leading edge outboard of the engines, they appeared to follow a radial sort of pattern on the surface of the wing but from my seat I could not be certain, could any one enlighten my mind as to what these pieces do for the wing?
Many regards
PeterRB