What does “SE” stand for in reference to an approach?

“SE” in reference to an approach stands for “Special Equipment.” This designation is used for aircraft that are specifically equipped for certain types of approaches, typically involving advanced navigation or autopilot capabilities. Aircraft with special equipment may be capable of performing approaches with lower visibility or under conditions that require enhanced operational procedures.

Understanding this terminology is essential for pilots as it helps them identify the level of equipment necessary for various approaches, ensuring safe operations under a range of flight conditions. For example, when a notam (notice to airmen) mentions "SE," pilots need to be aware that this could influence their planning and approach strategy based on the aircraft's capabilities.