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Dismounted Inspection

Whenever a tire has been subjected to a hard landing or has hit an obstacle, it should be removed in accordance with the applicable MIMs and dismounted for a complete inspection to determine if any internal damage has occurred. The tire beads should be spread, and the inside of the tire inspected with the aid of a light. If the lining has been damaged or there are other internal injuries, the tire should be removed from service. You should check the entire bead area and the area just above the bead for evidence of rim chafing and damage. Check the wheel for damage that may damage the tire after it is mounted.

AIRCRAFT TIRE MAINTENANCE

Aircraft tire inspection and maintenance have become more critical through the years because of increased aircraft weight and higher landing and



Figure 11-17.Method of measuring depth of cuts, cracks, and holes.

 

 



Figure 11-18.Aircraft wheel holder and tire bead-breaking machine.

takeoff speeds. Carrier operations place extra demands on the tire maintenance. In many cases tire failures are attributed to material failures and/or manufacturing defects when actually improper maintenance was the underlying cause. Poor inspection, improper buildup, operation of tires in an underinflated or overinflated condition are common causes for tire failure. Strict adherence to proper inspection procedures and maintenance instructions is mandatory. This will ensure that sound tires with minor discrepancies will not be removed prematurely, unsafe tires will be replaced before flight, and worn tires will be removed at the proper time to permit rebuilding.

During the mounting, dismounting, and inflating of tires, safety is paramount. Compressed air and nitrogen  present a safety hazard if the operator is not aware of the proper operation of the inflation equipment and the characteristics of the inflation medium. It is also very important to know the wheel type and be familiar with the manufacturers recommended procedure before you attempt to dismount a tire. For specific precautions concerning a particular installation, you should always consult the applicable MIM.







Western Governors University
 


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