A 16-year-old girl trying to sail solo around the world who was missing in treacherous seas in the Indian Ocean has been found by an Australian search plane and is in good condition, her parents said on Friday.

The girl, Abby Sunderland of Thousand Oaks, Calif., departed alone Jan. 23 in her sailboat Wild Eyes. On Thursday, she lost satellite phone contact with her family and set off emergency beacons, triggering a rescue effort by United States, Australian and French authorities. Ms. Sunderland was trying to break the record for the youngest sailor to circumnavigate the globe, a title held briefly by her older brother Zac, who completed his sail last year at 17.

“We have just heard from the Australian Search and Rescue. The plane arrived on the scene moments ago. Wild Eyes is upright but her rigging is down. The weather conditions are abating. Radio communication was made and Abby reports that she is fine,” Ms. Sunderland’s parents reported on her blog.

“We don’t know much else right now. The French fishing vessel that was diverted to her location will be there in a little over 24 hours. Where they will take her or how long it will take we don’t know,” they said.