Definition
Airport signs with a yellow background and black inscription used to provide pilots with information about specific areas or directions to facilities such as radio frequencies, noise abatement procedures, run-up areas, or applicable services. They have no regulatory or restrictive meaning; their function is purely advisory.
Plain English
Yellow signs with black writing on an airport that simply tell you useful information — they don't require you to do anything or restrict where you can go.
Context Anchor
Seen on airport taxiways and other movement areas while taxiing before takeoff or after landing.
Why Pilots Care
They supply helpful details that support situational awareness without the urgency of mandatory instructions.
Intuition Check
Do not read information signs as general notices or advertising. In FAA airport-sign use, they are specific airport signs that give pilots operating information they may need while taxiing.
Example Sentence 1
While taxiing toward the run-up area, the pilot read an information sign listing the noise abatement departure procedure for that runway.
Example Sentence 2
An information sign marked the location where the taxiway ended.