What was found
DURING HEAVY MAINTENANCE: AFTER OF AFT CARGO SEAL RESTS REMOVAL IN REF TO NRC 077, WAS FOUND CORROSION ON LOWER BEAM BTW FR77/80 AT AFT CA- RGO COMPARTMENT; REF TOMEX WO 2592, NR 00249, CORROSION ON LOWER BEAM BTW FR77/80 AT AFT CAR- GO COMPARTMENT WAS REMOVED PER EMB- -190 SRM 51-12-01, SRM 51-10-03 EVALUATED OUT OF LIMITS PER EMB 190 SRM 53-23-11 AD 54 THEREFORE WAS REPLACED PER EMB-190 SRM 51-41-01, SRM 51-41-02, SRM 51-43-03 AND SRM 51-43-04.