March 19, 2010, Moscow – Sukhoi Superjet 100 SN 95004 had completed cold soak trials in Yakutsk and returned to the Zhukovsky-based Sukhoi Civil Aircraft Company flight test center. Yakutsk is already the sixth regional airport in Russia and CIS, where SSJ100 has successfully performed its assigned flight test programme.

Yakutsk hosted successful runs of standard procedures designed to warm up the aircraft after long-term parking of up to 17 hours – while the jet was exposed to temperatures that reached -41°С – with a further check of aircraft system performance and a launch of the APU and then the engines. These procedures involved standard ground servicing equipment. Upon warm-up completion, a total of 7 test flights, assigned to this trial batch, was delivered, demonstrating the smooth operation of all on-board systems after aircraft low temperature soaking. SCAC’s team also assessed the influence of short parking on aircraft availability for the next take-off.

The batch of operational cold soak trials was performed to support aircraft operation on regular flights, demonstrating its readiness for operation under temperatures up to -41°С with no tailored equipment or procedures involved. Later, upon receipt of the type certificate, additional trials will be held to extend the temperature operational limits.

Source: Sukhoi Superjet