As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 129 - UNABLE TO RETRACT LANDING GEAR AFTER TAKEOFF. FLIGHT RETURNED TO CLT WHERE LANDING WAS WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND MLG AIR SAFETY SENSOR TO TARGET CLEARANCE EXCESSIVE. ADJUSTED SENSOR PER MM 32-09-01. OPS CHECK NORMAL. (M)