What was found
CLE - FLT 0287 - THE LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF FROM CLE. THE AIRCRAFT RETURNED TO CLE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE RE-RIGGED THE GROUND SENSING CONTROL MECHANISM AND ANTI-RETRACTION CABLE. THE GEAR WAS SWUNG AND OPERATION CHECKED NORMAL. IN ADDITION, THE NLG STRUT WAS SERVICED. A DIP WAS ISSUED TO CHECK THE NLG X-DIMENSION AFTER 4, BUT NO MORE THAN 20 LANDINGS. (X)