As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
12D SEATBACK WILL NOT STAY UPRIGHT<[01] OKAY TO CONTINUE PER MEL 25-6-01 SP1B ROW 13 DEF SEATS UNUSABLE.;[02] SECURED SEAT 12D IN THE FULL UPRIGHT AND LOCKED POSITION. ROW 13D;E;F ARE USEABLE. 12D TO REMAIN UNOCCUPIED DUE TO PLAY IN THE SEAT BACK ASSY.;[03] TIGHTENED SEATBACK HARDWARE @ 12D PER CMM 25-22-00.