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  <xs:element id="tdg_DerivativeReclassificationDomain" abstract="true" name="DerivativeReclassificationDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tdg_NetSalesMember" abstract="true" name="NetSalesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tdg_InterestExpenseNetMember" abstract="true" name="InterestExpenseNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tdg_DerivativeGainLossOnDerivativeTaxExpenseBenefit" abstract="false" name="DerivativeGainLossOnDerivativeTaxExpenseBenefit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdg_PatrickMurphyMember" abstract="true" name="PatrickMurphyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tdg_InitialTradingPlanMember" abstract="true" name="InitialTradingPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tdg_ModifiedTradingPlanMember" abstract="true" name="ModifiedTradingPlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
