What was found
SJO - DURING C-CHECK, FRAME INNER FLANGE CRACKED, LENGTH .250 INCH, AT BS 500A BETWEEN STRINGERS 21R AND 22R. REPAIRED FRAME AT BS 500A BETWEEN STRINGERS 20R AND 26R 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, FRAME INNER FLANGE CRACKED, LENGTH .250 INCH, AT BS 500A BETWEEN STRINGERS 21R AND 22R. REPAIRED FRAME AT BS 500A BETWEEN STRINGERS 20R AND 26R IAW SRM 53-10-4 FIG 1. (M)