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Lubricating Oils

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Lubricating Oil Approvals – New FAA Proposed Guidance

The FAA has published for public comment a draft advisory circular: AC 20-24D, Approval of Propulsion Fuels and Lubricating Oils. Comments are due to the FAA at the end of September, so please get us YOUR comments by September 16 so we can make sure we address your concerns in the MARPA comments. Continue reading →