PG&E gas pipeline in San Bruno fire had defects

SAN BRUNO, Calif.

That's according to a preliminary report Friday from federal investigators. The blast killed eight people and destroyed 38 homes.

The /* National Transportation Safety Board*/ found over a hundred examples of incomplete or cracked welds that did not meet the 1956 standards when the pipe was installed.

The government has not yet determined the cause of the blast.

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