What does the Commanding Officer sign off concerning aircraft operations?

The correct answer relates to the responsibility of the Commanding Officer in ensuring that all aspects of an aircraft’s operational readiness are thoroughly documented. The Aircraft Inspection and Acceptance Record is a critical document that verifies that the aircraft has undergone the necessary inspections and meets the required standards for safety and performance. This record signifies that the aircraft is deemed safe and ready for operational use, which is a fundamental aspect of command authority in military aviation.

The importance of this process lies in ensuring accountability and adherence to safety protocols, as the Commanding Officer must ensure that all regulatory requirements have been satisfied before the aircraft can be utilized for missions. This reinforces the Commanding Officer's role in maintaining the integrity and safety of the aircraft operations within their command.