What was found
CENTER FUSELAGE 4, Y=479, FRAME 60-58 SIGNS OF CORROSION ON HAI BEAM. AFTER EVAL FURTHER HAI BEAM SECTION FOUND TO BE CORRODED IN A 100% ON FASTENERS DRAIN HOLES. REMOVED GUSSET BEAM FROM RH Y=479 AT FR 60-58. INSTALLED GUSSET.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CENTER FUSELAGE 4, Y=479, FRAME 60-58 SIGNS OF CORROSION ON HAI BEAM. AFTER EVAL FURTHER HAI BEAM SECTION FOUND TO BE CORRODED IN A 100% ON FASTENERS DRAIN HOLES. REMOVED GUSSET BEAM FROM RH Y=479 AT FR 60-58. INSTALLED GUSSET.