As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACKS IN LEFT HAND CENTER WING MAIN RIB, AT LEFT BUTTOCK LINE 29, RADIATING FROM FASTENER HOLES OF U-SHAPED STIFFENER CHANNEL FLANGES AT THE FOLLOWING LOCATIONS; BS 303 AFT FLANGE RADIATING BOTH INBOARD AND OUTBOARD FROM FASTENER HOLE AT LEFT BUTTOCK LINE 28.3, WATER LINE 80.5.