As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT FLAP SKIN CRACKED ON BOTTOM SIDE AT W/S 53.00. THIS IS OCCURING UNDERNEATH THE INBD FLAP TRACK, OTBD CHANNEL. THE CRACKS HAVE BEEN ABOUT 3" IN LENGTH. THE VISIBLE PART OF THE CRACK PROTRUDES APPROX .2500" OTBD OF THE FLAP TRACK CHANNEL AND JUST AFT OF THE AFT SCREW THAT ATTACHES THE CHANNEL TO THE FLAP ASSY. WE OPERATE A FLEET OF FOUR. THIS IS THE THIRD, INSIDE OF THREE WEEKS THAT WE HAVE DISCOVERED THE FLAP SKIN CRACKED IN THE SAME IDENTICAL SPOT.