As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT FLASHING OF THE NR 2 TEE HANDLE AND NR 2 FIRE WARNING LIGHT WITH ASSOCIATED TONE DURING FLIGHT PATTERN AT NIGHT. NO SECONDARY INDICATIONS. LANDED AIRCRAFT WITH DISCREPANCY, SHUT AIRCRAFT DOWN, RELEASED AIRCRAFT TO MECHANIC. MAINTENANCE TESTED AND TROUBLESHOT SYSTEM IAW MM AND NO DISCREPANCIES WERE NOTED.