This Aerospace Recommended Practice (ARP) covers the general design and performance characteristics of illuminated information signs for service in the passenger compartment of passenger transport aircraft. "Illuminated information signs" are lighted signs used to inform occupants of the passenger compartment. Signs may use symbols or letters to convey messages. This ARP does not apply to "EXIT" signs which are the subject of ARP503.
As agreed to in the Fall 2015 committee meeting, revise the ARP to: 1) Correct/update references, 2) update recommended sign symbology and graphics, 3) Sign control options, 4) update terminology, 5) add more detail to sizing factor, brightness, & color recommendations, etc.