The report is a summary of last week's incident. It contains no new information and makes no conclusions.

Reporter Martha Bellisle with the Reno-Gazette Journal has been covering the aftermath of the crash. She says the report does point out that investigators are trying to extract clues from an onboard data box.

"They also have been going through a lot of the photographic evidence that shows that there was a piece of the aircraft that was missing just before it crashed."

The preliminary report also puts the number of injured at 74, 66 of them seriously. Florida pilot Jimmy Leeward was among the 11 people killed when his P-51 Mustang fighter crashed nose-first into a section of VIP box seats. A final NTSB report with findings could take more than a year.