Lycoming Issued Mandatory Service Bulletin

No title Lycoming has issued an important Mandatory Service Bulletin that affects a number of (L)O-360, (L)IO-360 and AEIO-360 as well as O-540, IO-540, AEIO-540 and TIO-540 engines. Those engines involved with this SB will require removal and crankshaft replacement at Lycoming’s expense.


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