What does the term 'frangible couplings' refer to in NAVAIDs inspection?

The term 'frangible couplings' in the context of NAVAIDs (Navigational Aids) inspection refers to flexible connections designed to break away upon impact. This feature is particularly important for safety, as it allows for the controlled disconnection of components in the event of a collision or significant force. By having structures that can break away easily, the risk of creating hazardous debris or causing damage to surrounding areas is minimized, thereby enhancing operational safety.

The implementation of frangible couplings is a critical aspect in the design and installation of NAVAIDs, as they ensure that the navigational aids can withstand environmental pressures while maintaining safety protocols. Given the need for structures that can remain functional under normal conditions yet fail safely during unexpected incidents, frangible couplings serve a vital purpose in airport and aviation safety standards.