This SAE Aerospace Recommended Practice (ARP) is broken into various categories for convenience and ease of identification. It is the purpose of this document to provide certain criteria for the design and selection of stairways, for the boarding of passengers onto an aircraft. The criteria presented are limited to those factors which affect the safety of the passengers and are coordinated, where applicable, with the practices of the architectural profession, with respect to the design of stairways. The recommended practices are applicable to both mobile variable-elevation type stairways and to fixed-elevation stairways of the type built into an aircraft fuselage.
This document would be better identified as an Aerospace Information Report (AIR). The purpose of this revision is to convert the document from an ARP to an AIR. There will be no change to the title and there will be several minor additions to the new AIR. This document is currently under a 5 year review.