Electronic flight bag

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An electronic flight bag (EFB) is an electronic information management device that helps flight crews perform flight management tasks more easily and efficiently with less paper^[1] providing the reference material often found in the pilot's carry-on flight bag, including the flight-crew operating manual, navigational charts, etc.^[2] In addition, the EFB can host purpose-built software applications to automate other functions normally conducted by hand, such as take-off performance calculations.^[3] The EFB gets its name from the traditional pilot's flight bag, which is typically a heavy (up to or over 18 kg or 40 lb) documents bag that pilots carry to the cockpit.^[4]

An EFB is intended primarily for cockpit/flightdeck or cabin use.^[5] For large and turbine aircraft, FAR 91.503 requires the presence of navigational charts on the airplane.^[6] If an operator's sole source of navigational chart information is contained on an EFB, the operator must demonstrate the EFB will continue to operate throughout a decompression event, and thereafter, regardless of altitude.