Globus B738 enroute on Oct 20th 2014, cabin pressure problems

A Globus Airlines Boeing 737-800 on behalf of S7 Sibir Airlines, registration VP-BDF performing flight S7-425 from Moscow Domodedovo to Nizhnevartovsk (Russia) with 150 passengers and 6 crew, was enroute at FL350 when the crew decided to divert to Novosibirsk (Russia), about 400nm southsoutheast of Nizhnevartovsk. The aircraft maintained FL350 until usual top of descent to Novosibirsk and landed safely in Novosibirsk about 1 hour past scheduled landing in Nizhnevartovsk.

A replacement Boeing 737-800 registration VP-BNG reached Nizhnevartovsk with a delay of about 3 hours.

Novosibirsk's Transport Prosecution Office reported the crew received indications showing problems with the aircraft pressurization and therefore diverted to Novosibirsk.