Seattle firm warned BP about problems with Alaska oil pipelines

SEATTLE (AP): An engineering firm raised a red flag more than four years ago about BP's monitoring of its Alaska oil pipelines, documents show. 

The draft report by Seattle's Coffman Engineers, published in November 2001, is among documents being reviewed by a federal grand jury in Anchorage, Alaska, that is investigating a March oil spill of more than 200,000 gallons from a pipe on the western side of the Prudhoe Bay oil field.