Service Bulletin No. 640

Publications
DATE RELEASED

April 21, 2026

SUBJECT

Reprint of Slick/Champion Aerospace Service Bulletin SB2-19B

MODELS AFFECTED

All Lycoming 4 and 6-cylinder engines equipped with Impulse Coupled Magnetos identified in the Magneto Models Affected section of the attached Slick/Champion Aerospace Service Bulletin SB2-19B.

TIME OF COMPLIANCE

Refer to the Compliance section of the attached Slick/Champion Aerospace Service Bulletin SB2-19B

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