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Accidents Related To Incorrect Circuit Positioning

Accidents related to incorrect circuit positioning

  • Study
Fluid transfer is a common industrial operation. However, the incorrect positioning of transfer circuit during such operations, also referred to as poor alignment, is the cause of many accidents. This study, based on 372 events in the ARIA database, presents their characteristics and lessons learnt.
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Mobile Acetylene Cylinders : Hazard Potential Not To Be Underestimated!

Mobile acetylene cylinders : Hazard potential not to be underestimated!

  • Flash
Mobile acetylene cylinders are present in all sectors of activity owing to their common use on welding machines. Even if they look like risk free, these cylinders are real hazard potential ! Five major accidents in France since the beginning of 2018 drive us to remind to users and owners the risks associated to these cylinders.
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Effectively Evaluating Risks Under Degraded Operating Conditions

Effectively evaluating risks under degraded operating conditions

  • Fact sheet
A degraded situation is merely an initial phase that could lead to an accident with serious consequences. “Operating in a degraded mode” refers to a condition during which operations are ongoing despite there being no access to all necessary or normally expected functional resources upon completion of the corresponding risk analysis, whether such resources are organisational or technical. This fact sheet describes the main lessons learnt in pursuit of effectively evaluating risks under degraded operating conditions.
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Explosion of a tank of alcohol in a vinegar factory under development

  • Accident report
  • FRANCE

In a 3,000 m² vinegar factory, a 150 m³ tank containing 40 m³ of alcohol vinegar exploded at around 9:40 a.m. while undergoing welding work. The tank, measuring 13 m in height and 4 m in diameter, was projected like a missile. It flew through the roof and landed 80 m from the building, on the Nîmes-Grau du Roi railway line. The emergency rescue services took 2 injured employees to the hospital, one of whom had been badly burned. Rail traffic was interrupted. The spilt alcohol was collected in the holding tank. The building adjoining the [...]

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Pneumatic Explosion During An Intervention On A Pipe At A Pyrotechnic Plant

Pneumatic explosion during an intervention on a pipe at a pyrotechnic plant

  • Accident report
  • FRANCE
The summary of this accident has not yet been translated. In the meantime, please refer to the French summary :

Une explosion pneumatique se produit vers 16 h dans une usine pyrotechnique spécialisée dans la fabrication de poudre de chasse et de tir sportif à base de nitrocellulose. L'événement a eu lieu pendant une opération de sciage sur une conduite d'aspiration (tube vertical inox de 80 mm de diamètre), localisée dans le local extracteur d'un bâtiment de production. Au moment de l'accident, le site est en arrêt technique annuel, péri [...]

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Bringing gas-powered installations back online

  • Fact sheet
Repair, maintenance shutdown, adjustment of phase, often require the shutdown and restart of gas-powered installations. This procedure is frequently time consuming to implement, depending on the type of equipment considered (superheater, steam generator), and it can generate accidents. The following fact sheet analyzes some notable incidents in order to draw lessons from them. Date of the document: November 2011
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Operations in a degraded mode

  • Fact sheet
This fact sheet is the analysis of some accidents that illustrate the risks associated with the operation of installations in degraded mode (unavailability of equipment, utility, personnel ...). These degraded operating situations can arise from material failures, but also from organizational and human failures. In order to avoid accidents, and in the absence of being able to avoid degraded operation by appropriate arrangements, a specific road plan must be defined to carry on operations under a safety level equivalent to the reference.
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Risks analysis and works projects

  • Fact sheet
The accidentology during phases of work, be it maintenance, modification, installation or even dismantling of installations have been regularly mentioned and studied. This is due to the seriousness of this type of events, particularly in terms of human consequences. Focus on some relevant events. Date of the document: June 2013.
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Silos Storing Plant Products

Silos storing plant products

  • Flash
We need to pay special attention to the circumstances under which accidents in silos storing plant products take place. Experience shows that the frequency of accidents is far higher during the working phase including the preventive or curative maintenance, change, assembly or disassembly of facilities. This is also true for both staff technicians carrying out operations in the silo and subcontractors working in a sector where the risks are often underestimated.
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