What three items must be present for a WDR to auto-transmit?

The correct items that must be present for a WDR (Weight and Balance Data Report) to auto-transmit are related to operational readiness and safety compliance before flight. The requirements ensure that all necessary data regarding the aircraft's status and its occupants are accurately captured and transmitted for optimal safety and efficiency.

Filing an AWABS (Aircraft Weight and Balance System) is crucial as it records the weight and balance data necessary for flight preparation. This document helps ensure that the aircraft is loaded correctly according to safety regulations and operational guidelines. Including passenger counts is essential because it affects weight distribution and overall balance; understanding how many passengers are on board is crucial for calculating the center of gravity. Lastly, entering fuel data is vital since the amount and distribution of fuel can significantly affect the aircraft's performance, as well as its weight and balance configuration.

This combination of requirements ensures that the aircraft is properly prepared and all pertinent data has been accurately recorded, improving safety and operational effectiveness.