What might lead to the need for a Special Flight Permit?

A Special Flight Permit, also known as a ferry permit, may be required when an aircraft is not in a condition for normal operation, but it is safe to fly for a specific purpose. This situation often arises when urgent repairs are necessary at a location that is not accessible by ground transportation, or the repairs cannot be made at the current location. Obtaining this permit allows the aircraft to be flown in a limited capacity to facilitate necessary repairs or modifications that are critical for returning the aircraft to its normal operating status.

Other scenarios like planned aerobatic maneuvers, testing new flight maneuvers, or routine flight performance assessments typically do not necessitate a Special Flight Permit, as they can usually be conducted under normal operating conditions with a valid airworthiness certificate.