Definition
To honestly evaluate one's own knowledge, skills, judgment, physical condition, and readiness to conduct a flight safely, identifying personal limitations and areas needing improvement before and during flight operations.
Plain English
To take an honest look at yourself and decide whether you are truly ready and able to make this flight safely today.
Context Anchor
Used in pilot training when a student is expected to judge personal readiness, performance, and decision-making rather than relying only on an instructor’s opinion.
Derivation
From 'self' (one's own person) plus 'assess,' which comes from the Latin 'assidere,' meaning 'to sit beside.' The original sense was a tax official sitting beside someone to judge the value of their property. In aviation, the pilot sits as their own honest judge -- evaluating their own readiness rather than waiting for someone else to do it.
Why Pilots Care
Allows pilots to identify limitations such as illness or stress that could compromise safety.
Intuition Check
Self-assess does not mean simply trusting your first feeling or giving yourself an easy grade. In this context, it means making an honest, careful judgment about your own readiness and performance.
Example Sentence 1
Before the cross-country, she took a few quiet minutes to self-assess her fatigue level and decided to delay the departure by an hour.
Example Sentence 2
Instructors encourage students to self-assess their performance after each flight.