If the OAT exceeds the full thrust data, what must you do?

When the OAT (Outside Air Temperature) exceeds the full thrust data, it is crucial to obtain a new release from dispatch. This is essential because the full thrust data is based on specific temperature ranges and performance metrics that ensure safe takeoff and optimum engine performance.

Exceeding the temperature threshold can significantly impact engine performance, including thrust and fuel efficiency. By obtaining a new release, you ensure that the flight is cleared with up-to-date information, which reflects the current conditions and sets the appropriate thrust levels. This release typically includes updated performance calculations that account for the higher OAT, thereby enhancing safety and compliance with operating procedures.

Continuing the flight or using previous thrust settings without adjustment could lead to insufficient thrust, which poses potential safety risks. Adjusting the thrust manually, while it might seem like a quick solution, does not provide the thorough analysis and safety authorization that a new release from dispatch ensures. Therefore, obtaining a new release aligns with regulatory requirements and safety protocols.