Definition
Notes published on a Standard Instrument Departure (SID) chart that warn the pilot about specific operational hazards, restrictions, or required actions associated with that procedure, such as terrain, obstacles, climb gradient requirements, noise abatement constraints, or equipment limitations.
Plain English
Warnings printed on a departure chart that tell the pilot about something they need to watch out for or do when flying that procedure.
Context Anchor
Seen during preflight planning and briefing of instrument departure procedures, especially in the notes or text connected with a Standard Instrument Departure.
Derivation
“Caution” comes from an older Latin word meaning “to take care” or “to be on guard.” That fits the aviation use: a cautionary statement is there to make the pilot slow down and notice something that matters.
Why Pilots Care
Pilots must read and comply with these statements to maintain safety, meet legal requirements, and avoid hazards such as terrain or obstacles.
Intuition Check
Do not read “cautionary” as “optional” or “just extra information.” In this context, it means the chart is flagging something that may affect safety or correct procedure use.
Example Sentence 1
While briefing the SID, the captain read the cautionary statements aloud, including the required minimum climb gradient until reaching 5,000 feet.
Example Sentence 2
A cautionary statement on the procedure required a minimum climb gradient due to nearby obstacles.