As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: ON RECALL DURING DESCENT, THE MASTER FIRE WARNING LIGHT ILLUMINATED AND WOULD NOT EXTINGUISH. DID FINALLY RESET. THEN, UPON ENGINE SHUTDOWN ILLUMINATED AGAIN, NO OTHER INDICATIONS. ACCOMPLISHED FIM PROCEDURE AND FIRE WARNING TEST PER FIM 26-10-00 OPS CHECKS OK. UNABLE TO DUPLICATE WRITE UP.