Plain English Meaning
A tablet or similar device that holds all the maps, charts, manuals, and reference material a pilot used to carry as paper.
Full Definition
An electronic flight bag (EFB) is a portable electronic device used by pilots to display information traditionally carried in paper form, including charts, approach plates, checklists, aircraft manuals, weather data, and performance calculations. EFBs range from commercial tablets running aviation apps to certified installed units, and may be authorized for various functions depending on aircraft, operator, and regulatory approval.
Context Anchor
Seen when pilots use a tablet or installed cockpit screen to look up charts, details, checklists, or -planning information.