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Tag Archive: liability claim

Case Study: Fatality Servicing Unsupported Excavator Boom
April 22, 2019 2:27 pm Leave a Comment
A mini-excavator at a job site developed a leak at a hydraulic fitting at the base of the cylinder that raises and lowers the boom. A subcontractor foreman at the site raised the boom to search for the leak. The foreman found and attempted to tighten the leaking fitting. When he did, the fitting separated from the base of the cylinder, releasing the hydraulic pressure that held the boom aloft. The boom fell and the bucket struck a nearby superintendent for the general contractor.

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Why investigators should have “Scaled Diagrams” of scenes?
March 15, 2019 11:07 am Leave a Comment
When it comes to diagramming a crash scene, there are several methods to accomplish the task. Forensic Mapping, (locating, positioning, and documenting the evidence of a collision scene to scale) is essential to having the answers to the questions “Who, What, Where, When, and Why?”. Photographs do a great job showing what the investigators saw post collision; yet they lack scale and the ability to describe pre-collision movement. Having a computer aided diagram (CAD) of the collision scene goes much further than the pictures can; here is why.

A scale diagram gives the full overview of a collision scene from either a 2D or 3D point of view. Being able to see how things lined up, how they came together and how they parted helps explain the events within a crash. When a scene can be viewed from top down or any angle, that helps relay the facts. The investigator, judge, or jury will get (more…)
Danger Lurking in the Hot Tub
10:11 am Leave a Comment
Several dangers involving the use of a hot tub (spa) may readily come to mind, such as the risk of shock or electrocution, or the risk of drowning for unsupervised young children. Not so readily apparent is the effect of overheating the human body, or “hyperthermia”.

Some individuals are more susceptible to the effects of hyperthermia, including the elderly, young children, and those in poor health. The effects of hyperthermia, or overheating of the human body, cause direct responses such as headache, nausea, heat exhaustion, increased cardiac output, lethargy, confusion, heat stroke and unconsciousness. The onset of hyperthermia is defined as being at 99.5° F; if the body temperature reaches 104° F, a life-threatening medical emergency exists. (more…)
Not Your Father’s House Fire
January 28, 2019 3:51 pm Leave a Comment
Remember the good old days when our homes were built with only lumber, dry-wall, and roofing? Me neither. However, we talk about ‘modern’ construction materials like this is a new phenomenon. The truth is ‘modern’ construction materials started sneaking into homes over fifty years ago. It’s not only construction materials that have changed: a century ago, we furnished our houses with wood, cloth, metal, and glass. Today, it’s plastics, foams, and coatings.

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Children Will Fall At Playgrounds. What Shall We Do To Protect Them? A Multipart Blog Series – Part III: An Overview of Selected Playground Safety Technologies
May 7, 2018 3:04 pm Leave a Comment
Welcome to the third and final post in our multipart series of blog posts about a young boy’s fall and serious injury at a public playground. In our first post we gave a brief overview of the incident and our investigation. In the second post we discussed some of the safety standards applicable to public playgrounds. In this post, we will examine some of the impact-absorbing playground surfaces available to protect children at playgrounds from injury. If you would like to read the first two posts, they are available here and here.
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How a Central Indian Town Changed the United States Code of Federal Regulations
March 15, 2018 9:34 am Leave a Comment
On December 3, 1984, at a pesticide ingredient manufacturing facility owned by Union Carbide, a leak occurred in the Methyl Isocyanate (MIC) plant. Due to the toxic nature of the gases released and the plant’s proximity to local residences, the death toll was in the thousands; both plant workers and nearby residents. The first recorded public meeting in response to this incident was on December 9^th, in Institute, WV, the site of Union Carbide’s only US MIC production unit. Full disclosure: my father was a research & development chemist for Union Carbide and Institute is about 10 miles down the Kanawha River from my hometown of Charleston, WV. (more…)
Commercial Gas-Fired Cookers Can Do More Than Burn
August 29, 2017 10:00 am Leave a Comment
The first hazard that comes to mind when thinking about large scale ovens and steam kettles is burning or scalding injury. Carbon monoxide poisoning is just as dangerous but less understood, so oftentimes proper prevention methods are not followed. In the United States, this results in over 20,000 emergency room visits and over 400 deaths a year. Before we get to the case study and poisoning prevention methods, we need to know what CO is, where it comes from, and why it is poisonous. (more…)
Freeze Damage to Fire Sprinkler Systems
January 10, 2014 10:57 am Leave a Comment
The ongoing frigid temperatures serve as a reminder of the many investigations by Warren engineers involving fire sprinkler systems that have failed when some part of the system was exposed to the sub-freezing conditions. Interestingly, failures do not necessarily occur within the area of greatest freeze exposure, as the failure mechanism is the extreme pressure that results from the growth of an ice plug inside the exposed pipe in which the high pressure will rupture the weakest component which may even be located in a heated area of the sprinkler system. (more…)
Code Violations Are Root of Fatal Explosion
September 16, 2013 8:32 am Leave a Comment
The design and installation of gas piping systems in homes and commercial buildings is guided by a set of regulations called NFPA 54 — the National Fuel Gas Code. The code, which establishes minimum safety requirements, is also used by forensic engineers to evaluate an explosion to determine cause and responsibility. (more…)
Protecting Industrial Employees from Workplace Hazards
June 11, 2013 8:12 am Leave a Comment
The recent Texas fertilizer plant explosion has focused the nation’s eyes on the important matter of workplace safety. When an employee is injured or killed on the job, Warren investigators are often called in to identify what went wrong and how it could have been prevented.
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