What was found
(AIRCRAFT NOT GROUNDED) (DEFECT DISCOVERED DURING AC HEAVY MX VISIT) NRC 1000-0049: BULK CARGO COMPARTMENT, SILL BEAM BTW FR60 - FR62 FOUND CORRODED. TO BE INVESTIGATED. / BULK CARGO COMPARTMENT, AFTER REMOVAL OF CORROSION ON 4X ANCHOR NUT AREA OF SILL BEAM BTW FR60 - FR62 FOUND OUT OF LIMITS AS PER SRM 53-41-49-283-001 REV. 159. SILL BEAM WAS REPAIRED AS PER SRM 53-41-49-300-003 REV. 159. REPAIR IS CATEGORY B WITH FUTURE INSPECTION AS PER SRI 53-41-49-205-001 REV. 159. INSPECTION THRESHOLD FROM TIME OF ADL/REPAIR EMBODIMENT: 60000 FC/ 120000FH (WHICHEVER FC/FH IS ACHIEVED FIRST), SUBSEQUENT INSPECTION AT INTERVALS OF: TBD, METHOD OF INSPECTION: TBD (TO BE DEFINED IN CASE OF AIRCRAFT LIFE EXTENSION MORE THAN 60000FC/120000FH, WHICHEVER IS ACHIEVED FIRST)."