As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE FIRE WARNING ILLUMINATED IN FLIGHT AT FL250. AFM PROCEDURES FOLLOWED, THROTTLE RETARDED TO IDLE AND WARNING CEASED. THROTTLE SLOWLY RETURNED TO CRUISE POWER WITHOUT INCIDENT. MAINTENANCE FOUND LEAKING BLEED AIR PIPE GASKET NEAR PYLON FIRE DETECTION LOOP. GASKET WAS REPLACED AND GROUND RUN, LEAK CHECKS AND OPERATIONAL CHECKS SATISFACTORY.