As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE A/C WAS IN FOR HEAVY CHECK FOUND CRACK ON LT WING UPPER SKIN SURFACE AT SPAR 2 RIB 10 AREA. MX CUT OUT DAMAGE AND INSTALLED A FILLER AND DOUBLER IAW ETD 2011-170/02998 AND SB 170-57-0030 MAJOR REPAIR. FCS AFFECTED IS 57-10-00-003. TRANSFERRED TO LOG PAGE 260858/1. A/C REMAINS IN CMH FOR COMPLETION.