An Yakutia Airlines flight R39664 from Naberezhnye Chelny (NBC) to Barnaul (BAX) declared an emergency (squawk 7700) and returned to Naberezhnye Chelny due to a pressurisation issue.
An aircraft involved, Boeing 737-86N, registration VQ-BMP, has no other record in our database at the time of publication.
Courtesy of Flightradar24.com
Yakutia Airlines flight R39664 declared emergency and returned to Naberezhnye Chelny due to pressurisation issue