What is the minimum RVR for a precision approach to be conducted without special authorization?

In the context of air law and aviation operations, the minimum Runway Visual Range (RVR) for conducting a precision approach without special authorization is indeed 550 meters. RVR is a critical measurement that ensures pilots have sufficient visibility to safely execute the final phases of their approach to an airport.

Precision approaches, which utilize advanced navigation systems such as Instrument Landing System (ILS), require a certain level of visibility to maintain flight safety. The rationale behind the minimum RVR thresholds is rooted in ensuring that pilots can adequately see the runway environment to execute landing maneuvers safely.

Choosing 1500 meters does not align with the established regulations for precision approaches under normal conditions. In contrast, the values of 1200 meters, 800 meters, and 1000 meters also do not meet the regulatory standards, as precision approaches have specific visibility requirements that are crucial for maintaining safety during landing operations.