Summary
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A300 and A310 series airplanes, and certain Model A300-600 series airplanes. This proposed AD was prompted by a review of certain repairs, which revealed that the structural integrity of the airplane could be affected if those repairs are not re-worked. This proposed AD would require an inspection to identify certain repairs, and corrective action if necessary. We are proposing this AD to detect and correct certain repairs on the floor cross beams flange. If those repairs are not reworked, the structural integrity of the airplane could be negatively affected.