As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7826 - ORD-AVP - DURING TAKEOFF, AIRCRAFT MADE A UNSCHEDULED LANDING DUE TO NO GEAR RETRACTION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND CLEANED AND ADJUSTED NLG PROX SENSOR AND PERFORMED GEAR SWINGS, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)