As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE TROUBLESHOOTING A PRESSURIZATION DISCREPANCY USING A PRESSURE CART, AIR FLOW WAS NOTED COMING FROM UNDER THE RIGHT AVIONICS SELF. FURTHER INVESTIGATION REVEALED A CRESENT SHAPED CRACK IN THE FORWARD PRESSURE BULKHEAD AT FS. 84, BELOW SELF. THE CRACK RUNS LATERLY 4 INCHES, ON RT LOWER WEB, UNDERNEATH STIFFENER P/N 114-410026-55 (REF BEECH IPC ATA 53-11-00-13 ITEM 240.)