Which maintenance check is specifically associated with TACAN?

The maintenance check specifically associated with TACAN (Tactical Air Navigation) is to verify the "88" on the Mod Generator. This check is crucial because the "88" signal is a key feature of the TACAN system, indicating that the Mod Generator is functioning correctly and providing the necessary navigation information. This verification ensures that the RAP (Radar Advisory Procedure) is correctly processed and that the aircraft can accurately determine its position relative to the TACAN station.

Regularly checking the "88" signal helps maintain the reliability and precision of the navigation system, which is vital for flight operations, especially in military contexts where TACAN is commonly used.