What action should be taken if a CSD unit experiences an overtemperature malfunction?

When a CSD (Constant Speed Drive) unit experiences an overtemperature malfunction, the most appropriate action is to report and address the issue after landing. This is critical because an overtemperature condition could indicate potential overheating, which may lead to more severe malfunctions or damage to the unit or the aircraft engine it is connected to. By prioritizing safety and deferring any corrective actions until the aircraft is on the ground, the crew can ensure proper procedures are followed without jeopardizing the safety of the flight or the well-being of those on board.

Choosing to continue operating the unit until landing could risk further damage and possibly affect flight safety. Immediate reconnection on-site carries the risk of not fully understanding the extent of the malfunction or the conditions that caused it. Attempting a temporary fix during flight could lead to inadequate resolutions and might worsen the situation, creating additional safety risks. Thus, addressing the overtemperature condition after landing allows for a comprehensive evaluation and repair in a controlled environment.