As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING "A4" CHECK INSPECTION IN ZRH FOUND TWO CRACKS IN THE LT AND RT MACHINED DOUBLERS IN THE CENTER LANDING GEAR BAY STA Y=1381. THE CRACKS WERE LOCATED IN THE VERTICAL ROW OF RIVETS THAT ATTACH THE DOUBLER TO THE VERTICAL STIFFENER. THE CRACKS STARTED AND ENDED IN RIVET HOLES. (S)