Wednesday night at the Aerial Firefighting conference during a dinner at the California Aerospace Museum in Sacramento, George Petterson received an award named after Walt Darran, a legend in aerial firefighting, who passed away November 15, 2013.
Mr. Petterson was instrumental in determining the cause of two fatal crashes of air tankers. Below is an excerpt from an article in Aviation Week and Space Technology, February 21, 2005, (which is more accurate than the information which we received and posted earlier).
“George Petterson of the Los Angeles office of the National Transportation Safety Board investigated the 2002 inflight wing failure of a U.S. Forest Service Lockheed C-130, which led to the grounding of the firefighting fleet. Finding that metal fatigue hidden by a doubler was the cause, Petterson expedited the dissemination of this information to operators so there would be the least interruption to firefighting services. The investigation stirred his curiosity about a 1994 crash of a C-130 in which the wing also came apart during firefighting. The NTSB had attributed that accident to a fuel explosion. At considerable personal effort, Pettterson retrieved evidence from that crash in mountainous terrain, showing how a fatigue crack had grown unseen beneath a doubler in a manner similar to that experienced by the 2002 crash aircraft. Due to Petterson’s initiative, the NTSB changed the probable cause of the 1994 accident to fatigue cracking (AW&ST May 10, 2004 p. 69).”