What action should be taken when lightning is within 5 miles?

When lightning is detected within 5 miles, the appropriate action is to divert no later than reaching divert fuel limits. This is crucial because approaching lightning poses significant risks to both aircraft and personnel on the ground. By diverting, you are taking proactive steps to ensure safety and avoid potential hazards that lightning can cause during basic operations.

Continuing to park on the runway would expose the aircraft to hazardous conditions, as would remaining on the flight path when close to dangerous weather. Preparing for a go-around may be considered in specific situations, but it does not address the immediate danger of lightning nearby. Thus, prioritizing safety and taking action to divert ensures that the aircraft stays clear from the danger posed by lightning strikes, protecting both the crew and the aircraft.