As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SPACER BROKEN AT WELD AT SEAT BACK ATTACH BOLT TO SEAT BASE. FOUND BY VISUAL INSPECTION OF CREW SEATS. POSSIBLE CAUSE, MISALIGNMENT OF SPACER WHEN WELDED AT MANUFACTURE. RECOMMEND LIGHTLY LUBRICATE SEAT TRACKS AND CHECK SEAT BACK ALIGNMENT WHEN INSTALLING SEAT ON TRACK.