What does the ATC light signal 'FLASHING WHITE' indicate to a pilot?

The ATC light signal 'FLASHING WHITE' is used to convey specific instructions to pilots during various phases of flight, particularly while operating near an airport. When a pilot observes a flashing white signal, it indicates two main actions based on the context of the situation.

First, the signal instructs a pilot to 'Land and proceed to apron.' This means that after landing, the pilot should taxi the aircraft to the designated parking area, where the aircraft can be safely secured.

Second, the flashing white signal also indicates 'Return to starting point on aerodrome.' This may occur in instances when a pilot is unable to land immediately or must return to the original departure point after a go-around.

Therefore, the correct interpretation of the 'FLASHING WHITE' signal encompasses both these actions, allowing the pilot either to proceed to the apron after landing or to return to the starting point. Consequently, selecting the option that includes both 'Land and proceed to apron' and 'Return to starting point on aerodrome' is accurate since it captures the full range of instructions conveyed by this particular light signal.