ICON A5 MM : General : Symbols
Symbols
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This handbook uses the following symbols and definitions to emphasize important information.
Warning: 
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: 
Indicates a potentially hazardous situation or instruction which, if not avoided or followed, may result in minor or moderate injury or severely damage the aircraft.
Note: 
Indicates supplementary information that may be needed to fully complete or understand an instruction.