As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTION IT WAS NOTED THAT THE FORWARD CARGO LOWER LOBE STR 24L HAS BULGING AND CORROSION AT BS 560-582. REMOVED DAMAGED SECTION OF STRINGER FROM BS 563-606, FABRICATED 2 NEW STRINGERS 20 INCH LONG FROM BAC 1498-132, 7075-T6 .045 INCH AND 3 PIECES OF SPLICE FROM BAC1498-141/ 7075 T6 .045 INCH. INSTALLED FABRICATED REPAIR PARTS IAW SRM 51-30-5, 51-30-2. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.