As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A CRACK LOCATED AT STA 3627, WL 1235, BL 510 (LT SIDE) FWD BULKHEAD RADIATING INBD AND OTBD FROM A RIVET. THE CRACK MEASURES APPROX 3.5 INCHES TOTAL. THE RIVET IS USED TO ATTACH A CAST FITTING TO THE BULKHEAD AND IS THE LOWER LT RIVET. THE CAST FITTING IS PART OF THE FWD LT MAIN GEAR BOX STRUT ATTACHMENT POINT.