Aircraft Tires

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Care and MaintenanceExamination and Recommended Action

Tread

CHEVRON CUTTING

PHENOMENON

Superficial rubber cuts happen on the tread. The cuts are shaped as "v" and extend across the tread.

POSSIBLE CAUSES

This phenomenon usually occurs on grooved runways at aircraft touches down, the tires are rotated rapidly and damaged by the runway groove edges.

RECOMMENDATION

If the reinforcing fabric (bias) or aramid cord protector (radial) is exposed and damaged, remove the tire from the aircraft.

If the chevron cuts extend across a rib from groove to groove, or located in tightly linked distance to each other, carefully inspect the tire. If this kind of chevron cut occurs at the end of wear level, there is concern of tire tread tearing.

If the cut protector is exposed over 5 cm2 due to tread chunking, remove such tire from the aircraft.

If more than one chevron cut reaches to the cut protector, remove such tire from the aircraft.

Category Link: Examination and Recommended Action