As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE REAR PRESSURE BULKHEAD WAS FOUND CRACKED. WE BELIEVE THE CRACK WAS CAUSED BY A ANGLE THAT DID NOT HAVE ENOUGH CLEARENCE BETWEEN IT AND THE PRESSURE BULKHEAD. WHEN THE AFT BULKHEAD FLEXES THE ANGLE DIGS INTO THE BULKHEAD CAUSING A STRESS RISER AND EVENTUALLY A CRACK. THE OTHER KING AIRS IN OUR FLEET ARE ALSO SHOWING SIGNS OF THIS STRESS RISER BUT NO CRACKS HAVE SHOWN UP. THE CRACK WAS REPAIRED.