As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW EXPERIENCED FIRE WARNING ON RT ENGINE DURING APPROACH. BOTH FIRE BOTTLES FIRED; ENGINE WAS SHUT DOWN WITHOUT CHANGE OF FIRE-WARNING INDICATION. LANDED, WITHOUT INCIDENT. NO EVIDENCE OF ACTUAL FIRE FOUND. AIRCRAFT FLOWN ON SPECIAL FLIGHT PERMIT; FALSE FIRE-WARNING COULD NOT BE DUPLICATED.