The ECCS has three systems, connected to the coolant system headers. One is providing a place to monitor water level in the reactor coolant system. A redundant liquid sodium coolant system was used to cool the moderator and reflector materials. Proper engine coolant and a pressurized coolant system obviate the shortcomings of water. However, a jury-rigged coolant system successfully averted any catastrophe. Megura's coolant system was damaged, and he decided to bail out of his plane.