Metal Fatigue Cited In Firefighter Crashes

The NTSB has concluded that fatigue cracks caused the wing failures of both firefighting airplanes that crashed this year--a Lockheed C-130A near Walker, Calif., and a Consolidated-Vultee PB4Y-2 near Estes Park, Colo. In a related move, the FAA issued an airworthiness directive on the C-130A last...

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