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This SAE Aerospace Recommended Practice (ARP) is intended to provide guidance on verifying the integrity of inflation pressure sealing systems of aircraft wheel/tire assemblies.

This SAE Aerospace Standard (AS) defines the configuration of aircraft wheel inflation valve assemblies, including required tolerances, materials, and appropriate finishes.

This SAE Aerospace Recommended Practice (ARP) defines recommended planning and substantiation procedures and associated reviewing and approval processes to confirm that proposed changes do not compromise the demonstrated safety of the originally certified aircraft, and performance and aircraft compatibility are appropriately addressed in aircraft documentation. Successful demonstration also requires that failure modes be identified and mitigation provided for each. These procedures apply to modifications made by the original component or assembly supplier as well as approval of an alternate supplier.

This document recommends supplementary design criteria to enhance endurance and reliability of transport aircraft wheels and brakes.

This document recommends supplementary design criteria to enhance endurance and reliability of transport aircraft wheels and brakes.

This standard sets forth the minimum quality required for aircraft wheel and brake castings. Its use will establish minimum acceptable requirements for internal structure and surface conditions and is predicated on the use of a casting factor for the ultimate load of 1.51 (minimum) to 2.00 (maximum). When casting factors of 1.25 minimum to 1.50 maximum are used, visual, penetrant, and radiographic or other approved equivalent non-destructive inspection methods shall all be required on each production casting. Where specific parts or areas require a quality level exceeding that described by this standard, the requirements shall be established by negotiation between the purchaser and vendor.