As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ENGENEERS SEAT FELL DURING TAKE OFF AND INITIAL CLIMB. VERTICAL HOLD INOPERATIVE WITH SEAT POSITIONED FORWARD AT A 45 DEGREE ANGLE. SEAT NOT SAFE FOR FLIGHT. MAINTENANCE REPLACED FLIGHT ENGINEER'S SEAT ASSEMBLY AS REQUIRED IAW DC-8 AMM. OPS CHECKED GOOD.