As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, EN ROUTE FROM PVD TO DCA (WITH APU OFF), CREW REPORTED BOTH FIRE WARNING ANNUNCIATOR LIGHTS ACTUATED ALONG WITH FIRE BELL. CREW WAS UNABLE TO RESET BY PUSHING MASTER WARNING ANNUNCIATOR. WARNING SILENCED AFTER 30 SECONDS AND REACTIVATED MOMENTARILY A COUPLE OF TIMES. MX PERFORMED OPS CHECK OF FIRE WARNING SYSTEM PER TASK 26-11-715-001-001. NO DISCREPANCIES NOTED.