INJ EE & ANOTHER EE WERE ATTEMPTING TO RETRACT THE LANDING GEAR OF FUEL TANK WHEN THE LEG GAVE LOOSE QUICKLY WITH NO TIME TO REACT. THESE LANDINGS ARE HEAVY LEGS THAT HAVE TO BE LIFTED MANUALLY AND FROM UNDER TANK. EE'S THIRD FINGER ON RIGHT HAND WAS INJURED RESULING IN LACERATION & FRACTURE