As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT LOWER VENTRAL DOOR CORNER HAS CRACK INDICATION ON RADIOGRAPH APPROXIMATELY 1.25 INCH LONG. TRIMMED AND LOCATED DOUBLERS IAW SERVICE BULLETIN DC9 53-137. INSTALLED DOUBLERS IAW SERVICE BULLETIN DC9 53-137 AND PLACED ON WI 5728 FOR REPETITIVE INSPECTION.