As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF SI 7-63370-12AD, A CRACK WAS NOTED AT HOLE NR 10A BETWEEN IWS 319.83 AND IWS 346.109 IN THE RT WING REAR SPAR UPPER CAP. THE WING SKIN IS NOT DAMAGED IN THIS LOCATION. ERA272791 AUTHORIZES INSTALLATION OF A BUSHING IN THE DISCREPANT HOLE, AND PERIODIC INSPECTIONS UNTIL THE NEXT HMV.