AD 2007-16-10
Unsafe Condition
Turbine rotor separating from the shaft of the turbocharger due to a machining defect in the turbocharger compressor.
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Required Actions
Remove before further flight certain Kelly Aerospace Power Systems turbochargers, part number 466304-0003, listed by serial number in the AD. Use the approved service information to perform the required actions.
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Compliance Time
Before further flight
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Affected Aircraft
Teledyne Continental Motors (TCM) models TSIO-520-BE, TSIO-550-A, TSIO-550-B, TSIO-550-C, TSIO-550-E, and TSIO-550-G reciprocating engines with a Kelly Aerospace Power Systems turbocharger, TCM part number 646677, with certain serial numbers installed on or after March 20, 2007. Also, TCM IO-550-N reciprocating engines modified to Engine Technologies Incorporated STC SE10589SC to install turbocharger, part number 466304-0003, with certain serial numbers installed on or after March 20, 2007.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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