As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO DOOR CAUTION LIGHT ILLUMINATED ON ROTATION FOLLOWED BY RED BAG DOOR LIGHT AT APROX 500 FT. BOTH LIGHTS EXTINGUISHED PRIOR TO LANDING. INSPECTED THE CARGO DOOR SWITCHES. FOUND FORWARD SWITCH TO BE IN NEED OF LUBRICATION. LUBED AS REQUIRED AND OPS CHECKED GOOD.