As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED FOR HEAVY MAINTENANCE. AFT LOWER CARGO FLOOR AT STATION 1175 STRINGER 37L-38L CORRODED TEAR STRAP. STATION 1175 SHEAR TIE, TEAR STRAP CORRODED. BLENDED CORROSION LOST .016 FROM .5. .34 MATERIAL LEFT OVER. OUT OF LIMITS IN ACCORDANCE WITH SRM 53-00-51. NO CORROSION NOTED ON STRAP, ONLY SHEAR TIE.