Safran signs by-the-hour support contract with State Grid General Aviation Company Safran Press Release | December 15, 2020 Estimated reading time 2 minutes, 50 seconds. Safran Helicopter Engines has signed a Support-By-Hour (SBH) contract with State Grid General Aviation Company (SGGAC), covering their H215 and H225 fleets. This contract formalizes a long-term MRO (maintenance, repair and overhaul) and service agreement supporting a total of four Makila engines. This contract also includes the renewal of SBH support for 14 Arriel 2D engines powering the operator’s fleet of 13 H125 helicopters. Safran Helicopter Engines has signed a Support-By-Hour (SBH) contract with State Grid General Aviation Company (SGGAC), a wholly owned subsidiary of the world’s largest utility company State Grid Corporation of China (SGCC). Safran Photo