As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FJR - LOG PAGE: F80971 - ON CLIMB-OUT, FORWARD LOWER CARGO COMPARTMENT FIRE LIGHT ILLUMINATED. NO CARGO LOADED. NO SMOKE OR FIRE OBSERVED. RETURNED TO FJR. REPLACED FORWARD LOWER CARGO AFT SMOKE DETECTOR, AND OPS CHECKED SYSTEM PER MM 26-14-02. (X)