ESi was retained to conduct a detailed review the construction drawings and specifications, review the product literature, conduct a constructability review to identify and resolve potential issues prior to installation.
This project involved the midair between two small single-engine general aviation aircraft that collided after departing a controlled airport. The issue involved determining the flight paths of both aircraft and the visibility from each aircraft to the other.
Utilizing the worker’s described scenario as the working hypothesis, data were collected to support or rule out this sequence. ESi’s investigation included a site inspection to evaluate the scene and measure the distances between the platform, ground, and rail.
ESi was retained to evaluate the pre-impact motion and positions of a tractor semitrailer and a pickup. The intent of the time-distance-speed analysis was to provide an estimate of the coordinate pre-impact motion of the vehicles based on reasonable assumptions for evaluation of the circumstances.
A hopper car loaded with ammonium nitrate was an innocent bystander at West Texas fertilizer distribution facility explosion.
This project involved a passenger car stopped in the roadway, while a garbage truck allegedly backed into the front of the vehicle. The driver claimed she observed the garbage truck backing up for approximately 30 seconds and that the truck was traveling at approximately 30 mph.
In 1994, a Boeing 737 was scheduled to fly 127 passengers from Chicago O'Hare International Airport to Pittsburgh International Airport. The aircraft crashed while on approach to Pittsburgh International Airport, killing all aboard.
ESi was retained to investigate an aviation crash involving airplane impacting power lines and terrain and pilot and passenger fatally injured.
ESi was retained to perform a cause and origin evaluation on a fire in a large power plant.
ESi was retained to perform a study on the degradation of HDPE piping resulting from exposure to the disinfectants used in potable water.
ESi was retained to investigate an accident of a Porsche Carrera GT.
ESi was retained to investigate damage to a rail tank car and subsequent release of hazardous materials resulting from a derailment.
A freight train derailed while passing through the Howard Street tunnel in Baltimore, Maryland.
ESi was retained to determine the cause of failure of a woven polypropylene (PP) belt.
ESi was called in to assess the structural, mechanical, and electrical elements of the Super Dome after Hurricane Katrina.
A large, heavy-lift crane collapsed resulting in three fatalities and extensive damage to the stadium and construction equipment.
United Air Lines Flight 232 crashed and broke apart during the landing attempt.
Biomechanical accident reconstruction analysis methodologies were used to address injury modes associated with human operator involvement with a commercial hand fed tree chipper winch line.
A female pedestrian wearing black clothing was injured when an automatic sliding door closed on her while she was standing at the right door threshold. An accident reconstruction was performed to document the injury mechanism.
A mechanic in a shop that builds MOW specialty vehicles was lifting an articulating crane to mount it on a truck bed when the sling failed. The mechanic was fatally injured when the load fell to the ground and toppled on top of him.
ESi's expertise spans dozens of industries and specializations organized across several practice groups, each staffed by dozens of in-house experts with the technical knowledge, hands-on expertise, and courtroom experience required to execute projects for and with our clients from start to finish.Find an Expert Contact Us