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Container Handler Fire
October 27, 2014 10:37 am Leave a Comment
Container handlers are mobile, rubber-tired, machines that are used to load and stack standard containers at a variety of shipping terminals. The machines resemble oversized forklifts but are equipped with shipping container lift spreaders instead of forks. The machines are often equipped with sophisticated computer systems that inform the operator which container needs to be lifted as well as its destination, whether it is a truck, train, or storage stack. (more…)
Where did that hole come from? Part I
October 21, 2014 9:47 am Leave a Comment
As an experienced safety consultant, I have investigated many incidents in my career in which a worker “falls through an opening.” The majority of these incidents have occurred at construction sites and most of the ones I investigated resulted in a serious injury or death. (more…)
CSST Testing, Can Energized Branch Circuits Cause Perforation?
September 22, 2014 10:37 am Leave a Comment
We get to work with some really cool guys and from time to time, we do some really cool things; “things that make you go hmmm,” (as Arsenio Hall used to say). (more…)
Harmless Appearing, Smooth Rotating Mixer Shaft Causes Serious Finger Amputation Injuries
September 11, 2014 10:43 am Leave a Comment
I recently finished working on a case where an operator received a right hand injury when an unguarded, rotating mixer shaft caught his gloved hand between the right index finger and middle finger, twisting it around the shaft causing the index finger to separate from the hand and the middle and ring finger to be dislocated. The mixer contained an unguarded rotating shaft, which created an uncontrolled motion hazard when rotating at speeds up to 450 RPM. (more…)
Injury on Power Buggy
August 11, 2014 10:17 am Leave a Comment
When an operator is thrown from a ride-on vehicle when it tips over, such as a mud buggy, serious injury or death can result. In one such case we investigated, the issue centered on the maintenance of the vehicle, specifically whether a maladjusted hydrostatic drive caused the braking mechanism to malfunction. (more…)
Wind Turbine Rotor Overspeed at Wind Energy Park
August 4, 2014 10:21 am Leave a Comment
A wind turbine was being erected as part of a small wind energy park. The wind turbine tower and the nacelle housing the generator were successfully installed. The three-bladed rotor assembly was installed and connected to the nacelle as the last major component of the wind turbine. (more…)
Annual Hood Suppression System Inspection
June 19, 2014 9:41 am Leave a Comment
Recently, we had the opportunity to observe a semi-annual inspection of a commercial cooking fire suppression system. Before we get too far into this we would like to point out that we talked with one of the company’s owners as well as the technician about our presence there and the questions we would ask the technician. Neither of them had a problem with this request. (more…)
Crawler Crane Calamity at Cement Plant
June 16, 2014 10:11 am Leave a Comment
A production building was being constructed at a cement plant. A large crawler crane was being used to install the pre-assembled metal wall framing of the building. The weights and lift radii of the four wall framing sections, along with the rigging spreader and other lift equipment, were within the rated capacity of the crane. (more…)
Bolted Connection Failures
April 28, 2014 9:47 am Leave a Comment
One of the most common features of machinery, consumer products, and assemblies of any type is the bolted joint. Sometimes the joint fails, with results ranging from inconsequential to catastrophic. The design of a joint is in the purview of an engineer, who must consider the material to be joined, the geometry of the joint, the loads imposed on the joint, the strength of the connectors (i.e., bolts, screws) environmental effects (i.e., temperatures, corrosion) and perhaps other factors. (more…)
Forklift Falls off Loading Dock
April 8, 2014 8:44 am Leave a Comment
A forklift fell off the loading dock of a warehouse as it was in the process of entering a semi-trailer that was being loaded. The forklift fell because the semi-trailer and the connected truck rolled away from the edge of the loading dock as the forklift passed over the dock leveler into the trailer. The repeated braking forces of the forklift as it carried loads onto the trailer caused the trailer to move away from the loading dock. The semi-trailer wheels were not chocked to prevent movement away from the loading dock. (more…)

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