The NTSB chief complains that the utility took nearly nine months to report there had been a 1988 leak in the same pipeline. PG&E says staffers are combing through millions of historical documents.
Reporting from San Francisco -- The head of the federal agency investigating a deadly pipeline explosion scolded Pacific Gas & Electric Co. on Wednesday for taking nearly nine months to report that there had been a gas leak near the disaster site years earlier.
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