Aviation Maintenance Terms beginning with S

Safety cage

A reinforced structure that has been specifically designed to protect service personnel from the effects of any explosive event that may occur during the pressurization of a tire/wheel assembly.

Separation

Failure of adhesion between components or tearing within a single tire component.

Service pressure

The inflation pressure needed to support the maximum operating load for a wheel position. Service pressure is measured with the assembly under load.

Sidewall

The rubber side area of the tire located between the shoulder and the beads that covers the underlying structure and protects the carcass from damage.

Sidewall vents

Specific perforations in the lower sidewalls of tubeless tires, usually located above the rim centering rib, and defined by paint marks. These perforations release detrimental internal casing pressure.