One of the best ways single pilots can mitigate risk is to use the IMSAFE checklist to determine physical and
mental readiness for flying:
Illness-Am I sick? Illness is an obvious pilot risk.
Medication-Am I taking any medicines that might affect my judgment or make me drowsy?
Stress-Am I under psychological pressure from the job? Do I have money, health, or family problems? Stress
causes concentration and performance problems. While the regulations list medical conditions that require
grounding, stress is not among them. The pilot should consider the effects of stress on performance.
Alcohol-Have I been drinking within 8 hours? Within 24 hours? As little as one ounce of liquor, one bottle of beer, or
four ounces of wine can impair flying skills. Alcohol also renders a pilot more susceptible to disorientation and
Fatigue-Am I tired and not adequately rested? Fatigue continues to be one of the most insidious hazards to flight
safety, as it may not be apparent to a pilot until serious errors are made.
Emotion-Am I emotionally upset?