What defines an aircraft classified as PMCS?

An aircraft classified as PMCS (Partial Mission Capable Status) is defined by its ability to perform at least one mission, though it is not capable of performing all missions. This classification indicates that the aircraft has certain limitations or deficiencies that prevent it from being fully operational but still allows for some degree of functionality.

Being PMCS means there are operational capabilities available, but specific systems or components might be inoperable or require attention. This status is important for maintaining an understanding of the aircraft's readiness and for planning missions accordingly.

The other classifications, such as Fully Mission Capable or Non-Mission Capable, highlight different operational statuses. Fully Mission Capable means the aircraft can perform all designated missions without limitations, while Non-Mission Capable indicates that the aircraft is unfit for any missions due to maintenance or other deficiencies. The choice relating to undergoing maintenance checks aligns more with a temporary status rather than a defined operational capability. Therefore, the defining characteristic of PMCS is its ability to conduct at least one mission within the constraints of its current state.