As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE IT WAS NOTED THAT STR 24R HAS CORROSION AT BS 740. CORROSION WAS DETERMINED TO BE OUT OF LIMITS. DAMAGED STRINGER WAS REMOVED FROM BS 740. FABRICATED NEW STRINGERS 8 INCHES IN LENGTH FROM BAC1498-132 7075 T6. FABRICATED NEW SPLICE FROM 7075 T6 .056 INCH DIM 13 INCH. INSTALLED REPAIR PARTS. NO OTHER DEFECTS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE.