What is required for FEX to fly as a second-in-command (SIC)?

To serve as a second-in-command (SIC), it is necessary for a flight engineer to undergo upgrade training. This training is crucial because it prepares the individual with the specific skills and knowledge needed to effectively function in the SIC role, which often involves overseeing various systems and assisting the captain during flight operations. The upgrade training typically covers areas such as flight operations protocols, decision-making under pressure, and the responsibilities expected of an SIC.

While additional certifications, flight hours, or leniency in requirements may be factors in various contexts, the foundational element for an SIC position is the specialized training that equips the flight engineer to perform their duties proficiently and safely. This ensures that all crew members have a consistent level of competency, ultimately contributing to the safety and efficiency of flight operations.