As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CRACK WAS FOUND AT BS 257.60 IN UPPER LEFT CORNER OF BULKHEAD. CRACK WAS APPROXIMATELY 1 INCH LONG. MOVEMENT FROM HORIZONTAL STABILIZER PUTS STRESS ON BULKHEAD. BEECH SI 0990 REV 11 GIVES INSPECTION AND KIT REFERENCES. NEW BULKHEAD ASSY, PN 002-440023-75 WITH REINFORCEMENT PLATES INSTALLED, WAS INSTALLED IN AIRCRAFT.