SB for Crankshaft ID Corrosion Inspection

Numerical Parts History for Lycoming Engines

Service Instruction on Definition of Color Codes Used on Lycoming Cylinders

Service Instruction on FAA Approved Starters and Alternators for Lycoming Engines

SB for Engine Inspections in the Event of Immersion in Water

Service Instruction for Approved Spark Plugs

Service Instruction on Recommended Oils for Lycoming Engines

SB for Inspection of Thermostatic Bypass Valves

SB for Sudden Engine Stoppage, Propeller Strike or Loss of Propeller Blade Tip

Service Instruction on Recommended TBO's for Lycoming Engines

Index of Lycoming Service Bulletins, Service Letters, and Service Instructions

Service Instruction on Current Tappet Bodies for Lycoming Engines

LYCOMING INFORMATION

This page provides information on Lycoming aircraft engines and components.


These publications are for reference only and may not be the most current revision.

Custom Aircraft is not responsible for the accuracy or content of these documents.

TECHNICAL INFORMATION

"Truly superior pilots are those who use their superior judgment to avoid those situations where they might have to use their superior skills."

Service Instruction on Repair of Oil Leakage at Crankcase Thru-Stud Locations

Service Instruction on Cleaning RS & RSA Fuel Injectors

Service Bulletin Detailing Mandatory Replacement Parts at Overhaul, Repair, and Maintenance

Service Letter About Wide Deck Cylinders

Service Instruction on Adjustable Oil Pressure Relief Valves

Service Instruction on Pre-Lubrication of Parts Before Assembly

Service Instruction for Carburetor Manufacturer Cross-References

Service Instruction for New Piston Part Numbers

Service Instruction on Approved Fuel Pumps

Service Instruction on Cold Weather Starting

Service Instruction on Engine Test Run Procedures

Service Instruction on Trouble Shooting O-235 Engines

Service Instruction on Identification of Primer and Fuel Injector Lines

Service Instructionon Pre-Oiling Engine Prior to Initial Start

Service Instruction on Exhaust Flange Gaskets

Service Instruction on Tappet Clearance for O-235 & O-290 Engines

SB on Aluminum Push Rods on O-235 Engines

Service Bulletin for Fuel Pump Inspection and Recall for Hartzell Fuel Pumps

Service Instruction on SI-1529C  Hydraulic Lifter and Tappet Body Part Numbers

Service Letter about Shelf Life Requirements

Service Instruction on Roller Tappet Part Information

SB for Torque Values for Screws that Attach Ignition Harness to Bendix & TCM Magnetos

Service Instruction on Approved Fuel Injectors

Service Instruction on Combustion Chamber Cleaning Process

SB for Action to Take If Loss of Oil Pressure

Service Instruction on Alternator and Generator Belt Tension