The Federal Aviation Administration (FAA) accused the helicopter pilot, who crashed in January, of killing major basketball player Kobe Bryant and eight others for violating flight rules in a 2015 incident.
The FAA said Ara Zobayan piloted an AS350 helicopter in May 2015 when it violated the rules for the airspace around Los Angeles International Airport.
Ara Zobayan was awaiting clearance from the airspace, but air traffic control declined to approve the application because visibility was restricted due to the weather. This emerges from the FAA's late Friday enforcement records under the Freedom of Information Act.
The FAA report states that the helicopter had inappropriately violated flight rules while communicating with air traffic controllers by entering restricted airspace without authorization.
The report added that if Ara Zobayan had "properly planned and checked the current weather at Los Angeles International Airport or LAX, he could have anticipated the necessary measures for airspace transit."
"Proper coordination should have involved initiating communication earlier to allow time for approval," added the FAA report.
The Los Angeles Times reported on the 2015 incident on Friday. The FAA report said Ara Zobayan had been advised and added that he had "admitted his mistake, assumed responsibility for his actions, and was ready to take further action to comply with the regulations ".
The FAA report added that it was "cooperative and receptive to advice".
"Zobayan was killed in the January crash along with Bryant, 41, his 13-year-old daughter Gianna, and the other six on board."
The National Transportation Safety Board (NTSB) said earlier this month that the helicopter's two engines, which crashed on a hill in California last month in cloudy, cloudy weather, showed no evidence of a "catastrophic internal failure".
The interim report states that examination of both rotor assemblies revealed damage "consistent with the driven rotation at the time of impact".
"The preliminary results showed no obvious signs of mechanical problems that could have contributed to the fiery crash."
Jennifer Homendy, board member of the NTSB, said in January that clouds, fog, and limited visibility near the crash would be a key focus of the investigation.
Ara Zobayan, an experienced instructor-certified aviator, navigated through visual orientation rather than instrument guidance throughout the unfortunate flight, the NTSB said.