Recently three dropped objects incidents have occurred. First, while picking up 5-1/2-inch tubing and transferring it from the V-door to the Mouse Hole, a joint of tubing was caught under the Top Drive. The tubing joint fell and knocked the hardhat from an employee. In the second incident, while pulling a joint of 9-5/8” casing from the catwalk, the casing struck the top of the V-door, causing a shackle to fail. In the third, while disconnecting a cement hose from the cementing head, a sledgehammer fell 35 feet to the rig floor.