As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CELL PHONE FIRE UNDER 2D DAMAGE TO TRIM FIRE IS OUT. PASSENGER REPORTED PHONE FELL BEHIND SEAT WHILE ASLEEP. WHILE MOVING SEAT TO TTL MODE PHONE CAUGHT BETWEEN SEAT TRACK REMOVED SEAT BACK. FA AND PAX REPORTED THAT SMOKE COMING UNDER THE SEAT, AND THERE WERE NO FLAMES. REMOVED AND REPLACED SEAT 2D DAMAGE TRAY ASSEMBLY(TRIM PIECE) REF CMM 25-26-15.OPS CHK GOOD .NO FAULT NOTEDPARTS USED: S48107-378-302,QTY :1