As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND 2 FASTENER HOLES LEFT WING PREVIOUS "MAJOR REPAIR " TO WING SPAR BORE TOLERANCES OUT OF LIMITS. MAINTENANCE REPAIRED 2 FASTENER HOLES IAW EMB ETD 2013-170-000185-B. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.