Forensic Engineers and Consultants

Tag Archive: John Holecek

  1. Don’t Get Burned With Your Gas Grill!

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    If there is one thing Americans can agree upon, it is the enjoyment that comes from an outdoor barbeque.  Whether a summertime cookout or a fall BBQ to watch a football game, we all love the fun and fellowship that comes from sharing a meal that was prepared outdoors on a grill or smoker.  In fact, 64% of Americans own a grill or smoker.  The great majority of these are LP fueled gas grills with comparatively few natural gas fired grills.  These products can be enjoyed safely when designed, installed, and used in a proper manner.  However, given the grill’s use of flammable fuel gas and high temperatures, the potential exists for things to go wrong and result in burn injuries or uncontained fires that spread to the surroundings. (more…)

  2. Product Design is Critical to Consumer Safety

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    As the holiday season nears, thoughts turn to wonderful home-cooked meals with family.  Few things in life are more pleasurable than a traditional holiday turkey feast. Yet for an unfortunate few, holiday meal time can turn tragic if a turkey frying accident occurs.   While fried turkeys may be tasty, many fire safety experts feel that the reward is not worth the risk.  (more…)

  3. New 2017 Edition of NFPA 921 Guide for Fire and Explosion Investigations

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    Over the course of its 25-year history, NFPA 921 Guide for Fire and Explosion Investigations has changed the practice of fire investigation for the better.  Without a doubt, NFPA 921 has appropriately driven a more rigorous approach to fire investigation that seeks to avoid cognitive bias and reliance on techniques that, when rigorously examined, are little more than pseudoscience.  One need look no further than the Cameron Todd Willingham matter, wherein a Texas man was executed in part based on a flawed fire investigation, to understand the importance of conducting a proper fire investigation. (more…)

  4. Electrical Engineer Joins Warren

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    Warren is pleased to announce the addition of Tom Kelly, MSEE, PE, CFEI, as Senior Consulting Engineer specializing in electrical equipment failures, electrocution and electric shock accidents, fires and explosions, industrial electrical accidents, lightning strike analysis, and scope of damage/estimate of repair. Tom also has experience in robotics and automation systems and high energy laser design. (more…)

  5. Analysis of Double Fatality Fire Allegedly Caused by a Portable Electric Heater

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    When fires occur, the effect on people’s lives is often devastating. This is especially true with fires that cause the death of a child. Clearly it is important to try and find the causes of such fires so that they can be prevented in the future. In such circumstances, it is especially important to follow a rigorous methodology in investigating the origin and cause of a fire. Investigators following a less than rigorous methodology may reach improper conclusions. Such was the case in a devastating fire investigated by Warren that was improperly alleged to have been caused by a supposedly defective product, a small electric space heater.
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  6. Firefighter Burned Due to Improper Industrial Oven Design and Operation

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    Industrial ovens and furnaces are used in many manufacturing processes.  One use of industrial ovens is for drying and curing coatings on fabrics.

    I investigated a fire loss involving a very large oven, 10 stories high, used for curing coatings on an industrial fabric. A young firefighter was burned in response to this fire, one of a string of many fires that had occurred involving the oven.

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  7. Evaluating the Potential for “Victim” Holes Not Caused By Lightning in CSST

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    Prior to becoming a forensic engineer, I spent many years in industry designing fuel gas fired equipment. This included designing gas grills, commercial cooking appliances, and large industrial systems.  I learned a lot about the safe use of natural gas and propane. Once I entered the forensic engineering field, that experience helped me in evaluating fires involving natural gas and propane equipment and piping systems. One such area that I have found particularly interesting are fires involving Corrugated Stainless Steel Tubing (CSST).

    CSST is a material used to plumb fuel gas inside structures.  It is used as an alternative to traditional black steel pipe or copper tubing. The stainless steel tube of CSST, in certain circumstances, will perforate when subjected to electrical arcing, including that due to local lightning strikes.  The escaping fuel gas from these perforations has obvious implications as to causing fires. (more…)

  8. Forensic Examination of Losses that Include Programmable Logic Controllers (PLC’s)

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    Many modern machines and processes are controlled by Programmable Logic Controllers (PLC’s).  PLC’s are essentially computers that have the ability, properly connected and programmed, to interface with the outside world and control the actions of a machine like a robot or conveyor.  The PLC has a processor for processing the user programmed logic, and also has input / output (I/O) wiring provisions for both analog (e.g. temperatures and pressure transducers) and digital (e.g. limit switches and indicator lights) devices.  (more…)

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