A teenage pilot, who is attempting to fly all seven continents solo, hit a patch of rough air this weekend when Chilean authorities detained him for changing his flight plan without their permission and landing in Antarctica.

Chilean prosecutors say American influencer Ethan Guo, 19, broke “multiple national and international regulations” by changing his flight plans without prior notice, landing on a part of Antarctica where the South American country maintains a territorial claim.

Guo’s lawyer said on Sunday the young pilot had experienced “complications” while flying.

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Guo, whose website states he is trying to raise $1 million for cancer research by becoming “the first person ever to fly to all seven continents solo”, has broadcast his continent-hopping journey since last September to more than a million Instagram followers.

His last post, on June 23, documents a flight over the Philippines.

Chilean authorities say that on Saturday, Guo submitted a false flight plan and took off from Carlos Ibáñez del Campo Airport in the southern Chilean city of Punta Arenas as the sole passenger and crew member aboard a Cessna 182Q aircraft, registered as N182WT.

At one point during that flight, authorities say he turned off course toward Antarctica.

“The accused provided false information to the aeronautical authority,” Regional Prosecutor of Magallanes and Chilean Antarctica Cristian Crisosto Rifo said.

“He submitted a flight plan indicating that he was going to fly over the city of Punta Arenas.

“However, he continued toward Antarctica without informing anyone and without any authorisation, landing at the airfield of Lieutenant Rodolfo Marsh Base in Chilean Antarctic territory.

“With this behaviour, the accused seriously endangered the safety of air traffic to Antarctica and the Magallanes region.”

The plane flown by Ethan Guo is seen landing in Antarctica. Credit: Reuters

As soon as Guo landed in Antarctica, he was detained and formally charged.

“The accused not only violated the Aeronautical Code but also multiple national and international regulations regarding routes to Antarctica and access to the white continent,” Crisosto said.

On Sunday, Guo’s lawyer told reporters at a press conference after the teen was charged that he experienced “complications” while flying.

“While already in the air, he began to experience a series of complications,” Karina Ulloa said, adding that Guo claims “that he was conducting an exploratory flight to see if he could follow this route or not”.

Further comment from Ulloa has been requested.

The Magallanes and Chilean Antarctic Prosecutor’s Office determined on Sunday that the teen must remain in the Chilean sector of the frozen continent until authorities give him permission to return to the city of Punta Arenas.

The Chilean court decreed a 90-day investigation period for this case, during which time Guo must remain in Chile.