Powered by GoogleTranslate

Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 202544052 - Boom Section Of Crane Separates And Crushes Employee

Accident: 202544052 -- Report ID: 0950641 -- Event Date: 02/17/2012
InspectionOpen DateSICEstablishment Name
12615425102/17/20127353Hill Crane Service Inc
At approximately 2:30 p.m. on February 17, 2012, several employees were assembling an American brand lattice boom crane with a capacity of 165 tons. The assembly had been completed and there were two sections of boom attached to the crane, the butt section which is used as the base for the main boom and a lifting section called a "hammerhead." The crew supervisor was operating the crane and Employee #1 was releasing the pins that attached to the rear of the Hammerhead to the front of the butt section. The pins are about 10 inches long and two inches in diameter. As Employee #1 removed them with a sledgehammer, he was standing under the booms where they were joined together. There were a set of wire ropes going from the top of the crane cab to a "bridle" over the end of the butt section, then on to the end of the Hammerhead. According to the operators manual, the bridle needs to be attached to the butt section prior to removing the four pins and no one was to stand under the two sections while there was tension on the wire ropes and the bridle was not attached to the butt section. Both Employee #1 and #2 omitted both steps and, as Employee #1 removed the pins, the Hammerhead section fell on him. The initial report did not provide a description of injuries that Employee #1 sustained as a result of the accident.
Keywords: collapse, pin, crane boom, tower crane, locking pins, crane lifting beam, crane
Employee # Inspection Age Sex Degree Nature Occupation
1 126154251 Hospitalized injury Other Heavy equipment mechanics

Thank You for Visiting Our Website

You are exiting the Department of Labor's Web server.

The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. Users must request such authorization from the sponsor of the linked Web site. Thank you for visiting our site. Please click the button below to continue.