From the LVRJ: A plane that crashed into spectators at an air race in Reno last year
bore modifications that weakened its structure and showed evidence that
it was flown beyond its limits, investigators said Monday.
The
National Transportation Safety Board deemed the failure of a tail
structure to be the probable cause of the crash of the souped-up World
War II-era P-51 Mustang fighter that killed pilot Jimmy Leeward and 10
people on the ground at last year's National Championship Air Races in
Reno and injured more than 70.
Leeward also was blamed for failing
to fully document and test extensive modifications to the aircraft
before the September 2011 crash.
Board member Robert Sumwalt said,
"If you want to go out and fly fast and try to win, that's one thing.
If you're modifying an aircraft without fully understanding how the
modifications can affect the aerodynamics, you're playing Russian
roulette."
Structural modifications of the aircraft dubbed the
Galloping Ghost made it lighter and reduced drag, according to the NTSB
report. But flight control modifications also made the aircraft less
stable. The NTSB found that an elevator trim tab malfunction created
aerodynamic instability that made Leeward's plane uncontrollable.
High-resolution
photos show the skin wrinkling and the canopy separating from the plane
seconds before the crash, and NTSB investigators later found loose
screws in the crucial tail assembly. http://www.lvrj.com/news/ntsb-tail-structure-failure-caused-reno-air-race-crash-167578695.html
It's a shame this tragedy happened and it could have been prevented.
On the other hand, the show must go on as they say and the plane races will continue this year, even with a $1million+ insurance premium rate increase.
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