What type of information is disseminated by NOTAM (D)'s?

NOTAM (D) refers to notices to airmen that provide critical information about the status of various components that could affect flight operations, especially at airports. This includes, primarily, information that is non-regulatory in nature, such as taxiway closures and airport lighting aids that are relevant for both operational and safety awareness while not directly affecting instrument approach criteria.

This type of information is essential for flight crews and personnel responsible for operational control because it helps them make informed decisions regarding the safety and efficiency of flight operations. The focus of NOTAM (D) on taxiway closures and the status of airport lighting aids, while excluding details about instrument approaches, makes it a streamlined communication tool targeted at ongoing operational updates.

The other options focus on information types that either fall outside the specific purview of NOTAM (D) or encompass broader categories that include both regulatory and operational information not confined to simple navigational aids and airport facilities. For instance, temporary flight restrictions and navigational aid status updates, while important, are typically covered under different categories of NOTAMs, ensuring clarity and specificity in the information disseminated to airmen.