Service Bulletin No. 516 A

Inspection and Removal of TCM and Bendix S-20 and S-1200 Series Impulse Coupling Magnetos

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Date: September 9, 2016

SUBJECT

Inspection and Removal of TCM and Bendix S-20 and S-1200 Series Impulse Coupling Magnetos.

MODELS AFFECTED

All Lycoming aircraft engines with TCM and Bendix S-20 and S-1200 series impulse coupling magnetos.

TIME OF COMPLIANCE

Within the next 10 hours of engine operation.

REASON FOR REVISION

Exclusion of Bendix Model S-20 or S-1200 magnetos with a snap-ring impulse coupling assembly from the 100-hour inspection and replacement requirement.

Get It Exchanged

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