What does an EFB do?
EFBs can electronically store and retrieve documents required for flight operations, such as maps, charts, the Flight Crew Operations Manual, Minimum Equipment Lists and other control documents.
Physical EFB displays may use various technologies, formats and forms of communication.
For detailed information and guidance please refer to the Electronic Flight Bags CAAP.
Classification of EFBs by Functionality
- Hardware type: This classification defines the physical characteristics of the device and indicates what airworthiness approvals are required, for example whether the device is handheld, mounted or installed.
- Functionality: What particular functions the EFB is intended to perform.
|Hardware type classes|
From an operational perspective, EFBs are defined by their functionality. The four functionalities are outlined below;
Functionality Level 1 – The EFB is used as a document viewer for aeronautical data by either the publisher of the Australian Aeronautical Information Publication or by a CASA approved vendor, as being suitable for use in maps, charts or aeronautical databases.
Functionality Level 2 – In addition to Functionality Level 1 capabilities, the EFB has one or more applications that use algorithms and require manual input to satisfy operational requirements. These include, but are not limited to, the weight and balance and/or performance calculations as required by the aircraft’s approved flight manual for use by the aircrew.
Functionality Level 3 – The EFB has one or more applications that use algorithms requiring manual input and accept data directly (one way) from aircraft systems to satisfy operational requirements. These include, but are not limited to, the weight and balance and/or performance calculations as required by the aircraft’s approved flight manual for use by the aircrew. The software applications shall be validated by an authorised person. As this link may be via wi-fi, system security must be assessed to identify any risks associated with the data link.
Functionality Level 4 - A Functionality Level 4 EFB, as a Class 2 device, requires an airworthiness approval. However, this approval is limited in scope to the mounting device, crashworthiness, data connectivity, EFB power connection and software applications.
For more information on any of the Functionality Levels please refer to CAAP 233-1 - Electronic Flight Bags.