It is reported by RIA Novosti.
It is noted that the plane landed at Seattle Airport.
Earlier, the first test flight of the new Boeing 777X was postponed for the day due to weather conditions.
Boeing 777X made its first test flight
2020-01-25T23:25:04.235Z
The Boeing 777X made its first test flight over the state of Washington. The flight lasted four hours.
Source: russiart