As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - AFTER TAKEOFF LEFT MAIN LANDING GEAR UNSAFE AND GEAR DOOR OPEN LIGHTS REMAINED ILLUMINATED WITH GEAR HANDLE IN THE UP POSITION. FOUND LEFT MAIN LANDING GEAR BUNGEE CYLINDER, MFG P/N 3914016-5503 CRACKED. REPLACED LEFT MAIN LANDING GEAR BUNGEE CYLINDER. LANDING GEAR OPERATION AND LIGHT SYSTEMS CHECKED NORMAL.