Definition
A distress or urgency condition. A distress condition exists when an aircraft is threatened by serious and/or imminent danger and requires immediate assistance. An urgency condition exists when an aircraft is concerned about safety and requires timely but not immediate assistance — a potential distress condition.
Plain English
A situation where something is wrong on board that either needs help right now (distress) or will need help soon if it isn't sorted out (urgency). Both count as emergencies in aviation.
Context Anchor
Pilots encounter this term in radio communication, abnormal procedures, accident and incident reporting, and FAA guidance about distress or urgent situations.
Derivation
From Latin emergere, meaning 'to rise out' or 'come to light.' An emergency is a situation that has 'risen up' unexpectedly and demands attention. In aviation, the word is used precisely — it covers two specific levels (distress and urgency), not just any problem.
Why Pilots Care
Declaring an emergency gives the pilot priority handling from air traffic control and legal permission to deviate from normal rules when needed for safety.
Intuition Check
Do not think emergency only means a crash is happening. In aviation, an emergency can also be a serious developing problem, such as low fuel, engine trouble, smoke, illness, or being unsure of position, where safety may be at risk.
Example Sentence 1
After the engine began running rough, the pilot declared an emergency with ATC and requested vectors to the nearest airport.
Example Sentence 2
The controller cleared the runway for the aircraft in emergency so it could land without delay.