As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MLG DOOR HINGE FITTINGS LT & RT WERE REMOVED TO FIND SEVERAL ELONGATED HOLES AT MATING SURFACE OF HINGE FITTING & KEEL BEAM BOTTOM SKIN. REPAIRED BOTH LT & RT BOTTOM KEEL BEAM SKINS AT HINGE FITTING SURFACES IAW ECRA 5336-01 017. NO DEVIATIONS, NO FURTHER ACTIONS REQUIRED.