As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER'S SEAT WAS DIFFICULT TO LOCK IN FULL FORWARD POSITION. SEAT SLID BACK ON INITIATION OF TAKEOFF ROLL. SEAT UNLOCKED ON FINAL APPROACH INTO ILN WITH FIRST OFFICER FLYING AIRCRAFT. LUBRICATED FIRST OFFICER'S SEAT LINKAGE. SEAT OPERATES NORMALLY. LOCKS IN ALL POSITIONS IAW DC 9 MM.