As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING 900 HOUR/36 MONTH PRESSURE BULKHEAD INSPECTIONS, FOUND SMALL CRACK AT RIVET HOLE ON FORWARD PRESSURE BULKHEAD. CRACK WAS ON AIR BOX. AIRCRAFT HAD ABOUT 7,500 CYCLES. REPAIR DATA OBTAINED FROM DER TO INSTALL PATCH. SUBMITTER STATED THIS IS THE THIRD AIRCRAFT FOUND WITH THIS FAILURE AT THIS REPAIR STATION RECENTLY.