As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PASSENGER SEATBELT BUCKLE WAS FOUND TO HAVE NO SPRING TENSION IN THE LOCK POSITION. THE DRIVE SCREW PIN HAD BACKED OFF .0312 WHICH ALLOWED TENSION TO RELEASE. BELT ASSEMBLY IS SAFTEY PRODUCTS. THE BUCKLE IS STAMPED. THIS IS A MID COAST STC INTERIOR INSTALLATION. ITEM P/N BL/6-3800BOB54TSA REV. A