Final answer:
The usual prevention method for fuel jettisoning past the limits prescribed by Federal Aviation Regulations is by monitoring the fuel levels closely, installing automatic fuel jettison systems, and providing training to pilots on fuel management.
Step-by-step explanation:
The usual prevention method for fuel jettisoning past the limits prescribed by Federal Aviation Regulations is by monitoring the fuel levels closely. Pilots need to keep a watchful eye on the fuel quantity during the flight. Installing automatic fuel jettison systems is also a method that can be used to prevent fuel jettisoning beyond the prescribed limits. Additionally, providing training to pilots on fuel management is crucial to ensure they understand the importance of efficient fuel usage.
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