For engine starts in flight, what is the maximum start duration for the first and second engine?

The maximum start duration for the first and second engine in flight is 120 seconds. This limitation is critical to ensure the safety and integrity of the engines during operation. Exceeding this time can lead to overheating and potential engine damage, which could compromise the aircraft's performance and reliability.

Aircraft manufacturers and flight operation guidelines specify engine start durations to manage these risks effectively. The 120 seconds limit provides a balance between allowing enough time for the engine to start while protecting the engine from undue stress and failure. In situations where a start is not successful within the designated time, pilots are trained to discontinue the attempt and assess the situation to prevent any further risk.

Understanding these limitations is crucial for safe flight operations, particularly in emergency scenarios where engine failure may occur in flight. Adhering to these guidelines helps pilots maintain control and ensure the safety of the aircraft and its occupants.