What was found
ON PRE-FLIGHT, PILOT NOTICED LEFT ENGINE FIRE DETECTION WOULD NOT TEST. TROUBLESHOT SYSTEM AND FOUND OPEN CIRCUIT IN ACCY GEARBOX AREA SENSING ELEMENT. INSTALLED NEW ELEMENT AND SYSTEM TEST NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON PRE-FLIGHT, PILOT NOTICED LEFT ENGINE FIRE DETECTION WOULD NOT TEST. TROUBLESHOT SYSTEM AND FOUND OPEN CIRCUIT IN ACCY GEARBOX AREA SENSING ELEMENT. INSTALLED NEW ELEMENT AND SYSTEM TEST NORMAL.