As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON KEEL WEB FLANGE LBL 12 AT STATION 959 & 993. BLENDED CORROSION ON LT KEEL BEAM STATION 965 - 969 & STATION 981 - 999 AREAS BLENDED OUT OF LIMITS IAW SRM 53-50-12. SEE REA B653-60852-MR FOR COMPLETION OF REPAIRS. SDR INFORMATION CORRODED, PN 145T8611-5, SN N/A, PART NAME KEEL BEAM, FUSELAGE STATION FROM 959 TO 970, LBL FUSELAGE STATION 981 - 999 LBL. ACFT WAS GROUNDED.