Level One Accident Investigation Report of August 17, 2004 Fatal Aircraft Accident on the Grand Coulee-Bell No. 6 500 kV Line

摘要

On August 17, 2004, at approximately 0940, a Bonneville Power Administration (BPA) pilot was killed in the crash of a Bell 206BIII helicopter while stringing 'sock line' to enable the subsequent stringing of new conductors and static wire on the Grand Coulee-Bell number 6 500-kV line between tower 84/2 and BPA's Bell Substation in Mead, Washington. On August 17, 2004, Terry Esvelt, BPA Senior Vice President, Employee & Business Resources, appointed a Level I Accident Investigation Board (AIB) to investigate the helicopter accident in accordance with Delegation Order No. 0204-161, signed by the Secretary of Energy on October 7, 1996, and with BPA Manual Chapter 181, 'Accident Investigation and Reporting'.