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 AFT I BEAM SUPPORT SHACKLE FITTING HAS EXFOLIATING CORROSION AT BS 307-0. REMOVED FITTINGS AND FABRICATED 2 NEW FITTINGS. INSTALLED NEW FITTINGS IAW DWG NR 69-45947-1-1 AND 51-30-1. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.