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Preliminary Report on Investigation Into Cause of Reno Air Show Crash Expected Today

A P-51 Mustang airplane crashes into the edge of the grandstands at the Reno Air show on Friday, Sept. 16, 2011 in Reno Nevada. The World War II-era fighter plane flown by a veteran Hollywood stunt pilot Jimmy Leeward plunged Friday into the edge of the grandstands during the popular air race creating a horrific scene strewn with smoking debris. (AP Photo/Ward Howes)

A P-51 Mustang airplane crashes into the edge of the grandstands at the Reno Air show on Friday, Sept. 16, 2011 in Reno Nevada. The World War II-era fighter plane flown by a veteran Hollywood stunt pilot Jimmy Leeward plunged Friday into the edge of the grandstands during the popular air race creating a horrific scene strewn with smoking debris. (AP Photo/Ward Howes)  (AP)

Federal investigators are expected to release a preliminary summary of their probe of a racing plane crash that killed 11 people in Reno and injured at least 80.

A National Transportation Safety Board official says there won't be any conclusions in the report due out Friday.

Key clues are expected to come from an onboard data box and camera equipment believed to be from the plane.

NTSB member Mark Rosekind has said investigators collected numerous spectator videos and photos along with "tremendous amounts" of other material from the scene of the Sept. 16 crash during the National Championship Air Races at Reno-Stead Airport.

Florida pilot Jimmy Leeward was among those killed when his modified World War II-era P-51 Mustang fighter plane crashed nose-first into a section of VIP box seats.

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