As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT:9227 NAS/FLL AFTER TAKEOFF RT MAIN LANDING GEAR RED (A) ANNUNCIATOR ILLUMINATED WITH THE LANDING GEAR RETRACTED. CONTINUED TO FLL LANDED WITHOUT INCIDENT. CLEANED PROXIMITY SWITCHES AND ADJUSTED RT MAIN LANDING GEAR PROXIMITY SWITCHES.