What was found
SJO - DURING C-CHECK, FUSELAGE FRAME UPPER FLANGE CRACKED IN FORWARD CARGO COMPARTMENT AT BS 460, STRINGER 20L AND 21L, CRACK SIZE 10.25 INCH BY 4 INCH. REPAIRED CRACK IAW SRM 53-10-4 FIG 1. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SJO - DURING C-CHECK, FUSELAGE FRAME UPPER FLANGE CRACKED IN FORWARD CARGO COMPARTMENT AT BS 460, STRINGER 20L AND 21L, CRACK SIZE 10.25 INCH BY 4 INCH. REPAIRED CRACK IAW SRM 53-10-4 FIG 1. (M)