As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF AD 96-24-17 (AMEND NR 39-9841 EFF 1-27-97) INTERGRANULAR CORROSION WAS FOUND ON THE REAR SPAR APPROXIMATELY 12 INCHES OUTBOARD OF WING ATTACH POINTS ON THE REAR SURFACE TOP OF REAR SPAR. AREA WAS SLIGHTLY BULGED WITH A .50 INCH IN DIAMETER PIT WITH FLAKING ALUMINUM INSIDE THE DEFECT.