As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT WING LOWER PLANK ACCESS HOLE 640CB HAS MULTIPLE HFEC INDICATIONS NOTED ON THE O/B NON-CRITICAL AREA OF THE LANDING. INDICATIONS ARE APPROX 0.1 INCH LONG WITH 50 PERCENT 80 PERCENT FSH SIGNALS. AREAS ARE MARKED ON THE AIRCRAFT. FAILS NDT AT THIS TIME. C/W EC/TC EO 600-57-81 & C/W IAW REO 601R-57-21-030 REV G.