In aviation, what does it mean when someone is listed as DNIF?

When someone is listed as DNIF, which stands for "Duty Not Including Flight," it indicates that the individual is currently restricted from flying duties. This status is typically assigned due to medical reasons, including physical ailments or psychological issues, that temporarily make an aviator unfit to operate an aircraft. The DNIF designation serves both to protect the safety of the aircrew and the integrity of the operations they support, ensuring that individuals who are not medically cleared do not engage in flight activities. This status is crucial in aviation operations, as it maintains high safety standards and operational readiness by ensuring all personnel involved in flight are fully fit for duty.

In contrast, the other options do not accurately describe the DNIF status. Completing training, being on leave, or awaiting promotion do not relate to being medically unfit for flying duties.