February 25, 2010, Yakutsk – Today at 14:24 local time (+9 GMT) the third Sukhoi Superjet 100 flight prototype SN95004 landed at Yakutsk airport. The aircraft flew there to undergo cold soak trials.

Cold soak trials are required to examine the ability of the aircraft and its systems to resist against temperature shock. This testing shall validate the standard flight preparation of the aircraft after short (up to 2 hours) and long (no less than 12 hours) parking. This test session shall confirm systems performance, including the warming up time prior to departure.

The interior temperature in both the cockpit and the passenger cabin is also a part of the trials. Overall, the main checks will refer to engine launch procedures, fuel system and environmental system functionality. The current set of tests required to employ SSJ100 SN95004. This aircraft featuring full crew cockpit interior and passenger service equipment, i.e. the interior, a kitchen and a lavatory, represents full certification configuration. The launch and systems operations will be monitored by a tailored on-board control system.

Yakutsk lies in the planet’s coldest inhabited area. Yakutsk airport, located in the proximity to the Pole of Code, is a traditional place for cold soak trials for Russia’s aeronautics. Average February temperature in Yakutsk reaches -35°С.