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 A CRACK WAS DETECTED ADJACENT TO THE INBOARD FIRE BOTTLE VIEWING DOOR ON LEFT WING LOWER LEADING EDGE. REPAIR ACCOMPLISHED REMOVAL OF DAMAGED AREA FABRICATION AND INSTALLATION OF REPAIR DOUBLER IN ACCORDANCE WITH THE DOUGLAS STRUCTURAL REPAIR MANUAL AND ENGINEERING ORDER R74-R02-IR