Investigators looking 'very closely' to see if fatal Grand Canyon chopper was equipped with 'crash
Stephen Stein
In his description of the wreckage   NTSB investigator Stephen Stein  explained there was "evidence of a post-crash fire" in the Quartermaster section of the Grand Canyon where the helicopter went down.
 Teddy Fujimoto
 He  also said that everything from survivor and witness interviews to weather will be examined and included in a preliminary report in the coming days. A final report would be released after 18 months.
"We have reports of some wind  " Stein  said  but  he  cautioned that the reports of gusts would need to be corroborated with radar data calibrated at the time of the crash.
In his description of the wreckage   NTSB investigator  [TGT]   explained there was "evidence of a post-crash fire" in the Quartermaster section of the Grand Canyon where the helicopter went down.
 Teddy Fujimoto
 He  also said that everything from survivor and witness interviews to weather will be examined and included in a preliminary report in the coming days. A final report would be released after 18 months.
"We have reports of some wind  " Stein  said  but  he  cautioned that the reports of gusts would need to be corroborated with radar data calibrated at the time of the crash.