SALT LAKE CITY (TND) - On Wednesday, Delta Air Lines confirmed that the pilot accused of threatening to shoot a plane's captain during a flight is no longer employed by the airline. The pilot, identified as Jonathan J. Dunn, has also been indicted by a Utah grand jury for interference with a flight crew.

In a statement to CBS News, Delta officials stated, "Out of respect for the ongoing aviation authority investigation of this incident, Delta will refrain from commenting on this matter, but will confirm that this First Officer is no longer employed at Delta."

The Transportation Security Administration (TSA) has also taken action in response to the incident. In their statement, the TSA confirmed that Dunn has been removed from the Federal Flight Deck Officer (FFDO) program.

According to the U.S. Department of Transportation Office of the Inspector General, Dunn was indicted on Oct. 18 in Utah and charged with interference with a flight crew. The alleged incident occurred in August 2022.

The indictment states that Dunn, serving as the flight's first officer or co-pilot, "interfered with the performance of a crew member by using a dangerous weapon to assault and intimidate the Captain." Dunn was authorized to carry a gun as part of the FFDO program, which was implemented after the September 11, 2001, terrorist attacks.

The dispute between Dunn and the captain reportedly arose due to a passenger medical event. Dunn allegedly threatened the captain, stating that they would be shot multiple times if the flight was diverted.

Notably, the U.S. Federal Aviation Administration (FAA) confirmed that Dunn does not possess a current FAA medical certificate, which is a requirement for flying.

Interference with a flight crew is considered a felony and carries a maximum penalty of up to 20 years in prison.

Dunn's arraignment is scheduled for November 16 in a U.S. district court in Salt Lake City, based on court records. The airline on which the incident occurred was not disclosed, with the Office of the Inspector General referring to it simply as a commercial airline flight. The specific route of the flight and whether it was diverted have also not been mentioned.