What does the FUEL BAL annunciator indicate?

The FUEL BAL annunciator indicates a fuel imbalance. In the T-6A, this warning light is activated when the amount of fuel in one wing tank differs significantly from the other. The fuel imbalance can affect the aircraft's handling and performance because it centers the aircraft's weight and balance. Therefore, the pilot is alerted to take appropriate measures, such as allowing the fuel system to transfer fuel from one tank to the other or initiating other procedures to correct the imbalance. Recognizing this indication is crucial for maintaining safe and efficient operation during flight.