As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - DURING C-CHECK, FOND CRACK INDICATION ON LEFT FRAME AT BS 783.95, FIRST HOLE ABOVE FLOORBEAM. REAMED HOLE TO .312 BUT CRACK INDICATION STILL EXISTED. STOP DRILLED CRACK PER 51-10-01 AND INSTALLED DOUBLERS PER MO 71T68-C AND SERVICE BULLETIN 727-53-0197. (M)