What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS LANDING GEAR DID NOT RETRACT AFTER TAKEOFF, LANDING WEIGHT 150.0 LBS NORMALLANDING SINK RATE 200 FMP. MAINTENANCE CHECKED ALTERNATE GEAR DOOR SWITCH AND CLEANED IAW AMM 32-34-00. CHECKED FRANGIBLE FITTINGS IAW AMM 32-32-52. CHECKED OPERATION OF MLG ACTUATORS IAW AMM 32-32-11. ALL CHECKS NORMAL AND NO FAULTS NOTED. ***SUPPLEMENTAL INFORMATION: MAINTENANCE PERFORMED FIM 32-30-00 AND REPLACED MANUAL EXTENSION SYS ACCESS DOOR SWITCH IAW AMM 32-34-11 AND REPAIR CONFIRMATION FIM 32-30-00-810-815 THE LANDING GEARS EXTENSION AND RETRACT IS OK.*** (CLOSED)