DATE: September 21, 2007
All Lycoming aircraft engines employing TCM and Bendix S4LN-21, S6LN- 25, S4LN-204, S6LN-204, S4LSC-21T, S6LSC-25T, S4LSC-204T, S6LSC- 204T series magnetos.
TIME OF COMPLIANCE
Same as that required for Service Bulletin No. 663A.
This reprint is current at the time Service Bulletin No. 576 is issued. However, when complying with this Service Bulletin, insure that this reprint of Teledyne Continental Ignition Systems Service Bulletin No. SB663A is still current at time of compliance.
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