A forklift operator at an industrial site was filling a liquid propane cylinder on the forklift and also heard a hissing sound. The operator then started the forklift and a flash fire explosion occurred at the forklift and propane dispensing system.
The facility is an industrial wood processing plant with a propane dispensing system. Propane-fuelled forklifts are used at this facility for the movement of products. When necessary, the employees operate the propane dispenser to fill empty propane cylinders located on the Forklifts to continue in-service operation.