What action should be taken if right TAGB oil pressure is lost?

If the right TAGB (Turbine Accessory Gearbox) oil pressure is lost, switching the No. 2 Constant Frequency Generator (CFG) off is the appropriate action. This is due to the need to maintain the integrity of electrical and mechanical systems and to avoid any potential damage or hazards that could arise from operating with insufficient oil pressure. The TAGB is crucial for the health of the engine and connected systems, and losing oil pressure on the right side indicates a critical issue that requires immediate attention.

Switching off the No. 2 CFG helps in isolating the problem and preventing further complications while troubleshooting the situation. This action helps to stabilize the aircraft's systems and ensure safety, as it mitigates the risk of catastrophic failure of the right engine or TAGB due to insufficient lubrication. It is fundamental to prioritize the safety and reliability of the aircraft systems in such circumstances, which is why this course of action is recommended.

Other alternatives, like increasing speed or landing at the nearest airport, do not address the immediate issue of oil pressure loss in a controlled manner and might lead to further complications in an emergency. Therefore, the decision to switch off the No. 2 CFG is aimed at maintaining operational safety while assessing and resolving the underlying