<informationTable xmlns="http://www.sec.gov/edgar/document/thirteenf/informationtable">		<infoTable>
			<nameOfIssuer>TRANSDIGM GROUP INC</nameOfIssuer>
			<titleOfClass>COMMON</titleOfClass>
			<cusip>893641100</cusip>
			<value>314350</value>
			<shrsOrPrnAmt>
				<sshPrnamt>1376011</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2</otherManager>
			<votingAuthority>
				<Sole>1376011</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
		<infoTable>
			<nameOfIssuer>MATTRESS FIRM HLDG CORP</nameOfIssuer>
			<titleOfClass>COMMON</titleOfClass>
			<cusip>57722W106</cusip>
			<value>28304</value>
			<shrsOrPrnAmt>
				<sshPrnamt>634195</sshPrnamt>
				<sshPrnamtType>SH</sshPrnamtType>
			</shrsOrPrnAmt>
			<investmentDiscretion>DFND</investmentDiscretion>
			<otherManager>1,2</otherManager>
			<votingAuthority>
				<Sole>634195</Sole>
				<Shared>0</Shared>
				<None>0</None>
			</votingAuthority>
		</infoTable>
</informationTable>
