The on-line reference library replaces the practice of producing and distributing type specific and company manuals on CD Rom or paper. The on-line library contains the definitive collection of books and can be referenced securely anywhere with an Internet connection. Automatic archiving of participating manuals is also achieved thereby satisfying Aviation Authority requirements. EFOS is also able to provide a secure single-sign-on solution to external technical libraries.

The library revision acknowledgement element of the system replaces the process whereby a notification of a library revision is recorded through the “letter of document transmittal” procedure. Users can instantly see which new revisions have been issued and then employ the acknowledgement system to inform auditors and managers that they are aware of these. When used in conjunction with the on-line library, crew members are instantly aware of important changes to safety procedures or other aspects of the operation.