Sentencing was set for June 2.
He will formally enter a guilty plea at an unspecified date.
Outside the federal courthouse, McNally said that Akemann acknowledged his conduct posed an imminent threat to firefighting crews.
A no-drone flyzone sign in Los Angeles during the wildfiresGetty
Maybe, but some want a bit more than merely tracking down such individuals.
The probe to find Akemann was led by the FBI.
The damage took the vitally needed plane out of commission.
The Canadian Super Scooper that collided with an illegal drone at a maintenance hangar at Van Nuys Airport
City News Service contributed to this report.