What was found
HAD A LANDING GEAR ISSUE, LANDING GEAR WOULD NOT RETRACT. NO EMERGENCY DECLARED. LANDED WITHOUT FURTHER INCIDENT.THE AIRCRAFT WAS GROUNDED. MAINTENANCE CLEANED AREA AROUND DOOR OF MANUAL EXTENSION ACCESS DOOR, SECURED DOOR IAW FIM 32-30-00, ACCOMPLISHED GEAR SWINGS IAW AMM 07-11-01, AND PERFORMED A SATISFACTORY OPERATIONAL CHECK.