What was found
WITH LANDING GEAR HANDLE, UP THE THREE GREEN POSITION LIGHTS WENT OUT BUT RED UNLOCK LIGHT REMAINED ON. LOWERED GEAR NORMAL AND LANDED GC52. INSPECTED GEAR AND FOUND NO OBVIOUS DEFECTS, REMOVED PINS. AIRCRAFT JACKED UP AND GEAR RETRACTED, NOTED LEFT HAND MAIN GEAR DOOR HANGING DOWN ABOUT TWO AND ONE-HALF INCHES. REALIGNED FORWARD FLOAT LINE - RESTING AGAINST STRUT WITH GEAR UP AND PERFORMED GEAR RETRACTION TESTS. ALL INDICATOR LIGHTS WORKED NORMALLY THROUGH ALL RETRACTION TESTS.