A 38 year old woman was killed when a section of the concrete suspended ceiling in the Interstate 90 (I90) connector tunnel in Boston, Massachusetts detached from the tunnel roof and fell onto her vehicle. View Full Case Study
On April 20, 2010, an explosion and fire erupted on the Deepwater Horizon, an offshore drilling rig in the Gulf of Mexico, killing eleven platform workers and injuring 17 others. It took 87 days to cap the oil gusher and the US Government estimated the total spill at 4.9 million barrels (210 million gallons) – the largest oil spill in history US history. View Full Case Study
A construction worker was seriously injured when a sheet pile fell from the grips of the sheet driving hammer as it was being maneuvered into position. The site and equipment were documented and a series of graphics was prepared to explain the circumstances of the accident. The sheet driving hammer and controls were tested and found to function normally. It was concluded that the sheet was inadvertently released as it was swung into position. View Full Case Study
A worker sustained serious head injury when an 80 foot wooden truss fractured during building construction and struck him. A reconstruction of the rigging configuration combined with a dynamic finite element stress analysis of the truss stresses generated during construction showed that the failure occurred from improper rigging when the truss was being lifted into position and not as a result of a defect. View Full Case Study
On December 19, 1997 a Silk Air Boeing B737-300 aircraft departed Soekarno-Hatta International Airport, Jakarta with 97 passengers, 5 cabin crew and 2 cockpit crew. The aircraft took off in daylight with good weather conditions and climbed to 35,000 feet. The aircraft suddenly dropped 400 feet in 8 seconds and continued in a rapid descent initiating in-flight breakup followed by complete disintegration of the aircraft upon impact with the Musi River. All 104 persons on board were killed. View Full Case Study
A massive pallet racking system used by R. R. Donnelly Corporation to store printed catalog matter suddenly collapsed resulting in the complete destruction of the pallet racking system and loss of the stock. Some failed welds were observed in the wreckage and there was a question whether weld failure precipitated the collapse or whether the welds failed as a result of the severe structural deformation associated with the collapse. View Full Case Study
One worker was killed and a co-worker was seriously injured when the tower climbing work platform they were working from collapsed sending them plummeting 85 feet to the ground below. A third worker managed to escape injury by leaping over the parapet onto the building’s roof. The workers were removing water table stone from the roof façade of an eight story building when the accident occurred. View Full Case Study