As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PROBLEM WITH ELECTRICAL CONDUCTIVITY OF RT TOP WING SKIN WAS TRACED TO IMPROPERLY TORQUED WING TO FUSELAGE JUNCTION. 20 OUT OF 28 WING ASSY BOLTS WERE UNDER OR IMPROPERLY TORQUED; OF THESE 12 OUT OF 14 WERE ON THE RT SIDE CAUSING THE CONDUCTIVITY PROBLEM. 8 OF THE NUTS WERE FOUND TO BE BOTTOMED OUT ON THE THREADS OF THE BOLTS AND NOT BEARING ON THE PARTS.