H-2A rocket grounded by problem in propulsion system

A Japanese launch crew filled an H-2A rocket with cryogenic liquid hydrogen and liquid oxygen propellants in time for a planned liftoff Saturday with a geostationary navigation satellite, but a problem inside the launcher’s propulsion system prompted officials to postpone the mission. Officials announced a hold less than two hours before the 174-foot-tall (53-meter) H-2A rocket was set to blast off at 0440 GMT (12:40 a.m. EDT; 1:40 p.m. Japan Standard Time). More

(Source: SpaceFlight Now - Aug 13)