As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) COPILOT SHOULDER HARNESS (JAMS) WHEN EXTENDING: FOUND PLASTIC END COVER OF INERTIA REEL BROKEN LOOSE, CAUSING INTERIM REEL TO MALFUNCTION. CAUSED BY COPILOT PUTTING FLIGHT MANUALS ETC BEHIND SEAT AND PUSHING SEAT AFT ON SEAT RAILS WHICH PUSHED SEAT BOTTOM SKIRT INTO INERTIA REEL. - THIS IS TO BE CORRECTED BY EDUCATING THE (PILOTS) TO THE CAUSE OF THE PROBLEM AND THE REPLACEMENT OF THE INERTIA REEL. (TC NR 20060817005)