VIENNA (Reuters) - Tuesday s blast at Austria s Baumgarten gas hub, which killed one person and disrupted European gas flows, was most likely caused by a loose seal on a filter cap, operator Gas Connect Austria (GCA) said. The hub in eastern Austria is a major regional transfer node, taking gas from as far away as Russia and pumping it towards neighbors including Italy - its biggest recipient - as well as Germany, Hungary, Slovenia and Croatia.  The investigating authorities believe that the incident was caused by the seal on the cap of the filter separator,  GCA, a unit of energy company OMV, said on its website.  The cap had come loose and was propelled with great force against another part, causing damage to this part as well. The gas which subsequently escaped was then ignited, leading to a gas fire at two points of origin.  To see the GCA statement, click here: here GCA added that the parts in question were isolated from the rest of the site in accordance with an emergency plan, allowing gas flows to return to normal on Wednesday. 
Deadly Austria gas blast likely caused by loose filter cap: operator