Service Instruction No. 1094 D 

Fuel Mixture Leaning Procedures

  • Publications

Supersedes Service Instruction No. 1094 C

DATE: March 25, 1994


All Lycoming Opposed Series Engines.


As required during aircraft operation.

Lycoming strongly recommends that all engine instrumentation be calibrated annually. All instrumentation for manifold pressure, engine RPM, oil temperature, cylinder head temperature, exhaust gas temperature, and turbine inlet temperature in the aircraft should be included in this annual calibration.

Product Support Network

Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry.

Get It Exchanged

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