Definition
The actions a pilot takes to abandon the intended destination and proceed to an alternate airport when continued flight to the original destination is no longer practical or safe. These procedures include deciding to divert, selecting a suitable alternate, navigating to it, communicating the change with ATC, and arranging the approach and landing under current conditions.
Plain English
What you do when you can't or shouldn't continue to where you were going, so you change plans and head to a different airport instead. It covers the whole process: deciding to go, picking the new airport, getting there, telling ATC, and landing.
Context Anchor
You see this term in instrument training when weather, fuel, equipment trouble, air traffic control instructions, or another condition makes the original route or destination unsuitable.
Derivation
From Latin 'divertere', meaning 'to turn aside' or 'turn in different directions'. In aviation it keeps that core sense: turning the flight aside from its planned destination to go somewhere else.
Why Pilots Care
Correct use prevents fuel exhaustion, loss of situational awareness, or arrival at an unsuitable airport.
Grounding Statement
If the planned path is no longer safe or usable, diversion procedures help the pilot choose and fly a safer path instead.
Intuition Check
A diversion is not just “going somewhere else.” In aviation, diversion procedures mean using an orderly set of safety steps to change the plan while still controlling the aircraft, navigating, and communicating as needed.
Example Sentence 1
When the destination airport reported fog below minimums, the pilot initiated diversion procedures and began heading to the filed alternate.
Example Sentence 2
During the approach briefing the crew reviewed diversion procedures in case of a missed approach or runway blockage.