The National Transportation Safety Board report says the Lockheed P2V-7 was on its second flight of the day dropping retardant on the fire when it followed another plane into a shallow valley. The report says the tanker crashed into a mountain.
NTSB spokesman Keith Holloway says the agency is still probing what the plane’s flight path should have been and if any deviation contributed to the June 3 crash.
Firefighters were battling a lightning-sparked wildfire that jumped the Nevada border about 150 miles northeast of Las Vegas. The pilots killed were from Boise, Idaho.