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Care and Maintenance
Tread
CORD EXPOSURE IN TREAD GROOVE
POSSIBLE CAUSES
When rubber gauge in the tread groove is thin, the reinforcing fabric pattern may become visible at the base of the groove. Tires with this condition are airworthy.
RECOMMENDATION
However, should the reinforcing fabric (bias) or aramid cord protector (radial) become exposed or frayed during service as a result of cracking or cuts, the tire must be removed.