As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT ENGINE FIRE DETECT FAIL LIGHT ON THE TEE-HANDLE WOULD NOT ILLUMINATE. AFTER TROUBLESHOOTING SYSTEM, FOUND THE LT ENGINE FORWARD FIRE DETECTION LOOP WAS INOP. REMOVED AND REPLACED LT ENGINE FORWARD FIRE DETECTION LOOP IAW 26-11-05, PN ON/OFF 703072.