Are normal flap operations available during a battery bus failure?

Normal flap operations rely on electrical power from the aircraft’s systems, particularly the battery bus. During a battery bus failure, the electrical systems that control the operation of the flaps are compromised, which prevents normal flap operations from functioning.

In the T-6A, crucial systems operate on the battery bus, and a failure in this system means that the flight control surfaces that depend on it, such as the flaps, cannot be deployed or retracted as required. This aspect reinforces the understanding that without electrical power, the functionality of critical flight components is lost, which includes flap operations. As a result, this leads to the conclusion that normal flap operations are not available during a battery bus failure.