As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT MAIN LANDING GEAR WOULD NOT FULLY RETRACT AFTER TAKEOFF, (BOTH A AND B RED DISAGREEMENT LIGHTS ILLUMINATED). RETURNED TO RDM. TROUBLESHOT SYSTEM. FOUND LEFT MAIN GEAR ACTUATOR OUT OF ADJUSTMENT. ADJUSTED AS PER EMB MM 32-32-11. OPS CHECKS GOOD.