As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE C-CHECK INSPECTION, CORROSION WAS DETECTED ON FORWARD PIT LONGERON 36 BETWEEN FUSELAGE STATION 590 AND 610. REPAIR ACCOMPLISHED REMOVAL OF LONGERON SECTION, FABRICATION AND INSTALLATION OF A NEW LONGERON SECTION AND SPLICE IN ACCORDANCE WITH DOUGLAS STRUCTURAL REPAIR MANUAL AND ENGINEERING ORDER 51-DC8-3030.