What you need to know about EFBs

Approvals

The screen size and resolution needs to demonstrate the ability to display information in a manner comparable to the paper aeronautical charts and data it is intended to replace.

The recommended minimum size of the screen is 200mm measured diagonally across the active viewing area. Some manufacturers screen sizes may vary marginally from this minimum but still may be acceptable.

If the intent of the installation is to display charts and maps, the device should be suitably sized to display the image without excessive scrolling.

The recommended minimum size of screen approx. 200 mm (diagonal) (ICAO Annex 4). If the intent of the installation is to display charts and maps, the device should be suitably sized to display the image without excessive scrolling.

Mounting Device

EFBs that use temporary mounts that attach to the aircraft, for example suction mounts, Velcro pads etc., are regarded as Class 1 devices and must be stowed during take-off and landing. It is also advised they are stowed during periods of turbulence.

Temporary mounts are not considered to be airworthy and may constitute a hazard on the flight deck in certain circumstances. The equipment when mounted and/or installed shall not present a safety-related risk or associated hazard to any flight crew member.

EFBs attached to kneeboard holders do not need to be stowed.

To note - All EFB mounts attached to the aircraft structure will require airworthiness approval. See Subpart 21.M of the Civil Aviation Safety Regulations 1998.

The mounted EFB must not cause obstruction to:

• External vision;
• Physical access to aircraft displays or controls; and
• Visual access to aircraft displays or controls.

Cabling

The required cabling for an EFB should be a sufficient length to prevent damage or hazards. The cables themselves should not present a hazard.

Stowage area for EFB systems

Pilots need to consider stowage for EFBs that are not mounted to the aircraft or to a kneeboard. EFBs not secured in a mounting device during use must be designed and used in a manner that prevents the device from jamming flight controls, damaging flight compartment equipment or injuring flight crew members.

Software

The operator should ensure the operating system and application programs meet the intended function. Unauthorised modification of any database or the loading of any new or additional software is not permitted unless that software is demonstrated to comply with original validation basis.

Information provided to the pilot needs to be a true and accurate representation of the charts or documents being replaced.