As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1174 - CLT-SDF - AFTER TAKEOFF FROM CLT LEFT MAIN LANDING GEAR RED LIGHT REMAINED ILLUMINATED. RECYCLED GEAR AND LIGHT REMAINED ON. PERFORMED PROCEDURES. FLIGHT RETURNED TO CLT WITHOUT FURTHER INCIDENT. NORMAL LANDING WITH ALL GREEN LIGHTS WITH GEAR DOWN. MAINTENANCE RIGGED LEFT MAIN OUTBOARD GEAR DOOR. OPERATIONAL CHECK GOOD. (M)