DATE: May 6, 2011
All Lycoming engines with S-20 and S-200 series TCM magnetos.
TIME OF COMPLIANCE
Within 50 hours of engine operation or at the next maintenance event, whichever occurs first.
This Service Bulletin applies to the torque values for the four screws that are used to attach the ignition harness attachment plate for S-20 and S-200 series TCM magnetos on Lycoming engines.
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