Written by Your 5News Team
Created on December 14, 2012 @ 8:12PM
CHARLESTON, W.Va. (AP) - A federal investigator says a ruptured natural gas pipe in West Virginia had areas consistent with external corrosion.
National Transportation Safety Board member Robert Sumwalt says the pipe will undergo further analysis at an NTSB lab.
The NTSB is looking into the cause of Tuesday's explosion in Sissonville, which destroyed four homes and charred a large swath of Interstate 77. There were no serious injuries.
Sumwalt also says a worker at Columbia Gas Transmission's Charleston control room first learned about the accident from another company. The worker received a call 10 minutes after the explosion from a controller at Cabot Gas, who had been contacted by someone on the outside.
Investigators have said alarms didn't sound at the Columbia Gas control room during the explosion.
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