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Occupational Safety and Health Administration OSHA

Accident Report Detail

Accident: 118138.015 - Employee Incurs Chest Injury When Struck By Derrick Hoist Bl

Accident: 118138.015 -- Report ID: 0950647 -- Event Date: 04/01/2019
InspectionOpen DateSICEstablishment Name
1394537.01504/19/2019Mmi Services, Inc.
At 2:30 p.m. on April 1, 2019, an employee was working on a crew assigned to ser vice a Watson Hopper Model Payzone 550 oil well. The crew was pulling and runnin g rods on the rig and the employee was assigned to work on the 14 inch wide derr ick platform. The crew was pulling 7/8 inch guided rods out of the hole and whil e pulling up on the 63rd stand the rods drug and the blocks started to swing. A coworker (an operator) addressed the swing by stopping all movement and letting the blocks settle before proceeding. As the 66th stand was latched at the floor, the employee knocked on the mast three times to signal the coworker to begin th e lift. The coworker began the lift in 5th gear with a steady pull watching as t he blocks went were raised until they reached the bottom of the rod board, at wh ich point he looked down to judge the stopping point for the next connection. Th e rods began to drag once again and the blocks began to swing again. The coworke r was looking down at this point and did not notice the swinging blocks above. T he employee, still positioned on the platform, was located between the mast and the moving blocks. The blocks are approximately 15 1/2 inches wide and there is a clearance from the platform of about 4 inches. The swinging blocks struck the employee pushing him against the mast and crushing his chest area causing a pulm onary contusion, requiring hospitalization.
Keywords: blocks, chest, contusion, crushing, derrick, derrick platform, derrick truck, derrickman, digger/derrick, elevated work plat, elevated work platform, frame derrick, hoist, hoisting mechanism, lung, malfunction, oil r
Employee # Inspection Age Sex Degree Nature Occupation
1 1394537.015 33 M Hospitalized injury Laborers, except construction

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