As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED HIS SEAT LOCK PINS WOULD NOT RELEASE. MAINTENANCE FOUND THE PILOTS SEAT LOCK CONTROL WAS BROKEN. THIS SAME CONTROL WAS REPLACED 431.0 HOURS PRIOR FOR THE SAME PROBLEM. BOTH CONTROL ASSEMBLYS HAVE PN 1611020-05 REPLACE CONTROL ASSEMBLY, OPERATIONAL CHECK SATISFACTORY.