As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A CRACK WAS IDENTIFIED AT THE RT SIDE OF LWR FWD CARRYTHROUGH SPAR CAP AT FASTENER LOCATION IN FWD ROW WHILE PERFORMING NDT PROCEDURE AS AMOC FOR AD2018-03-03R1. THE CRACK WAS CONFIRMED BY BOLT HOLE EDDY CURRENT AFTER THE FASTENER WAS REMOVED. THE WING JOINT FITTING ASSOCIATED WITH THESE FASTENER LOCATIONS WAS REPLACED WITH AN OEM PART ON FEBRUARY 27, 2017 (CESSNA SERVICE KIT SK421-152B) AND HAS ACCUMULATED 3304.2 SINCE INSTALLATION.