Question

PAR approaches may be conducted when the ASR is unusable provided?

a) Only when ASR is functioning perfectly
b) When ASR is unusable or less effective
c) As an alternative to manual transcription
d) In cases of visual recognition only

Answer 1

PAR approaches can be conducted when ASR is unusable or less effective, ensuring pilots can still be guided during approaches with compromised Airport Surveillance Radar.

Step-by-step explanation:

The question pertains to the operation of Precision Approach Radar (PAR) when the Airport Surveillance Radar (ASR) is unusable. Precision Approach Radar provides pilots with guidance to land an aircraft when visibility is low, whereas Airport Surveillance Radar is typically used for tracking and displaying the position of aircraft in the vicinity of airports. However, PAR approaches can be conducted even when ASR is unusable or less effective. This means that in situations where ASR is not operational, or its performance is compromised, air traffic controllers can still use PAR to guide aircraft safely to the runway. PAR is an independent system and does not rely on ASR to function, thus allowing it to serve as an alternative when ASR is not available. It is crucial for pilots and air traffic controllers to be aware of the capabilities and limitations of these navigation aids in order to ensure safety during approach and landing.