Aircraft Tires and Wheels Inspections
EASA PART 66 MODULE 7 Aircraft Disassembly, Inspection, Repair and Assembly Techniques Tyres: Tyres have their serviceability indicated by the depth of the groove in the tyre tread. The AMM gives information of what constitutes a worn or damaged tyre. Apart from normal wear, other defects, that can affect a tyre, are cuts, blisters, creep and low pressure. Most tyres can be re-treaded a number of times after they have reached their wear limits, but the re-treaded can only be completed if the complete tyre has not been damaged badly. Creep is the movement of a cover around the rim, in very small movements, due to heavy braking action. This movement is dangerous if the tyre is fitted with a tube, as the movement can tear the charging valve out of the tube, causing a rapid loss of pressure. To provide an indicator, small white marks are painted across the wheel rim and the tyre side wall cover so, if creep takes place, the marks will split in half and indicate clearly that the ...