As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND WING SKIN AT THE ATTACHING FASTENERS AT THE RT LOWER FWD SPAR CAP RUNNING FOR APPROX 20" TO HAVE WORKED LOOSE. SKIN CAN BE PUSHED UP AND DOWN APPROX .020". UPON REMOVAL OF THE L/E AND NACELLE PANEL, A 4" CRACK IN THE WING SKIN WAS DISCOVERED RUNNING AFT AT APPROX WS 120. CRACK RUNS FROM FWD EDGE OF SKIN THROUGH 2 FASTENERS. NO ADDITIONAL STRUCTURES WERE FOUND TO BE DAMAGED BY VISUAL INSP AND VERIFIED BY EDDY CURRENT.