Third Leg, Late Day, and a Headache
You are a private pilot flying two friends to a fly-in. You slept about 5 hours the previous night, then flew a 2.2-hour leg in a hot cockpit with little water. After landing, you eat a light snack and drink one bottle of water. You now have a headache, feel slightly dizzy when standing, and notice that you misread a taxi instruction and transmitted on the wrong frequency. Your friends want to depart immediately to beat forecast afternoon thunderstorms. The return leg is 2.2 hours, with no suitable airport along the first 40 minutes. You feel “mostly okay” and are reluctant to disappoint your passengers.
1. Identify the human-performance hazards and decide whether to depart.
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The hazards are fatigue, dehydration, heat stress, and get-there-itis driven by passenger expectations and the approaching weather. Five hours of sleep before a demanding day, a hot cockpit, and little water are enough to degrade attention, scanning, and radio work. The headache and dizziness on standing point to dehydration and possibly heat strain, not just a minor annoyance. Misreading a taxi instruction and using the wrong frequency are objective signs that performance is already reduced.
The decision should be not to depart. “Mostly okay” is not a safe standard when the pilot has already made communication errors and has physical symptoms. The thunderstorms create pressure, but departing tired and dehydrated into convective weather is a poor combination. Rest, rehydrate, and reassess after a meaningful delay; if the weather does not permit a safe departure later, stay overnight. Disappointing passengers is preferable to becoming a passenger yourself.
2. What should you tell your passengers, and what plan should you put in place?
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Tell them plainly that you are not fit to fly safely right now and that the decision is based on specific symptoms and errors, not on a vague feeling. Avoid inviting debate about the weather or their schedule. Explain that you will reassess after rest and fluids, and that the aircraft stays on the ground until then. Give them a concrete alternative: wait for a later window, arrange ground transport, or stay overnight.
Operationally, secure the aircraft, drink water, eat a proper meal, and rest in a cool place. Recheck the forecast and notams after the rest period. If you still have a headache, dizziness, or any difficulty concentrating, do not fly. Even if symptoms clear, plan a shorter or lower-risk route and consider taking a passenger who can assist with radio calls. The point is to break the chain of fatigue, dehydration, and schedule pressure before it reaches the cockpit.