PSA Airlines Canadair Regional Jet Systems (PSA-CRJ) Practice Exam

What is the other weight condition that activates the shutdown of Powered Crossflow?

1. 20 lbs above the opposite tank

2. 25 lbs above the opposite tank

3. 50 lbs above the opposite tank

4. 100 lbs above the opposite tank

The correct answer is: 50 lbs above the opposite tank

The shutdown of Powered Crossflow is a significant safety and operational feature in the Canadair Regional Jet systems. This mechanism is designed to balance fuel between the left and right tanks to maintain optimal weight distribution and ensure safe flight operations. The activation of the shutdown condition is typically triggered when one fuel tank has a certain amount of fuel imbalance relative to the opposite tank. In this aircraft, the specific weight condition that initiates this shutdown occurs when the fuel in one tank is 50 pounds above the quantity of fuel in the opposite tank. This threshold is set to prevent excessive fuel imbalance which could impact aircraft handling, performance, and safety during flight. It is crucial to manage fuel distribution closely, especially during critical phases of flight, and the 50-pound limit serves to safeguard against conditions that could lead to adverse flight characteristics. Understanding the importance of this limit helps ensure that pilots and crew members can effectively monitor fuel levels and maintain the aircraft’s balance throughout flight operations.