What was found
CLT - FLT NR 2461 - DURING CLIMB, THE LANDING GEAR WOULD NOT RETRACT AND THE AIRCRAFT WOULD NOT PRESSURIZE. THE FLIGHT RETURNED TO CLT. MAINTENANCE SERVICED THE STRUT, CLEANED THE TARGET AND TIGHTENED THE CANNON PLUG. THE NOSE GEAR WAS THEN CYCLED. OPERATIONS CHECKED GOOD. (M)