Service Instruction No. 1534

Service Recommendations for Long-Term Storage of Engines That Use Automotive Fuel

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DATE: January 27, 2011


All Lycoming aircraft engines using automotive fuel.


Before engine storage for a duration of 6-months or longer.

The Service Instruction only applies to Lycoming engines that have been operated on automotive fuel (as specified in the latest revision of Service Instruction No. 1070) and are to be stored for 6 or more consecutive months.

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