What is the definition of a cold soaked aircraft?

The definition of a cold soaked aircraft refers specifically to the temperature conditions that an aircraft must endure to be classified as such. An aircraft is considered cold soaked when it has been exposed to temperatures below -30 degrees Celsius for an extended period, typically around 8 hours. This condition affects the aircraft's systems and could have implications for operations, such as fuel viscosity, battery performance, and hydraulic systems.

Understanding this classification is crucial for maintenance and operational procedures, especially in extreme weather conditions. Such definitions are essential in ensuring safety and preparedness when dealing with aircraft in cold climates.