Supplement No. 1 to Service Bulletin No. 552

Crankshaft Replacement in Lycoming TIO and LTIO-540 Engines Rated at 300 Horsepower and Higher

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DATE: September 5, 2002

Lycoming Service Bulletin No. 552 requires replacement of crankshafts in some turbocharged Lycoming TIO and LTIO-540 engines rated at 300 horsepower or higher.

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