What was found
DURING SCHEDULED C4 CHECK, FOUND RT KEEL BEAM LOWER CHORD CORRODED BETWEEN BS 500C AND 500D, STR 28R. REPAIRED CHORD PER SWA RA.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING SCHEDULED C4 CHECK, FOUND RT KEEL BEAM LOWER CHORD CORRODED BETWEEN BS 500C AND 500D, STR 28R. REPAIRED CHORD PER SWA RA.