Service Bulletin No. 647

Incorrect Markings on Service Tool# ST-310

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Service Bulletin No. 647
Incorrect Markings on Service Tool# ST-310

December 14, 2021

MODELS AFFECTED

Lycoming Engines that have been inspected using the Incorrectly Marked Tool

TIME OF COMPLIANCE

Upon receiving this Service Bulletin

Product Support Network

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Get It Exchanged

Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.