PHILADELPHIA (WPVI) -- An aging, failed elbow pipe appears to be the initial cause of a June 21 fire and subsequent explosions that injured five people at the largest oil refinery on the East Coast, ...

PHILADELPHIA (CBS/AP) -- Federal investigators revealed Wednesday a corroded pipe caused a fire and explosion at a South Philadelphia oil refinery. The U.S. Chemical Safety Board said a single elbow ...

PHILADELPHIA (AP) - Federal investigators say an aging, failed elbow pipe appears to be the cause of a June fire and subsequent explosions that left five people with minor injuries and destroyed part ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. PHILADELPHIA (AP) — An aging, failed elbow ...

PHILADELPHIA (AP) — An aging, failed elbow pipe that hadn’t been inspected in almost 45 years appears to be the initial cause of a June 21 fire and subsequent explosions that injured five people at ...