January 23, 2014
To all owners and operators of Lycoming engine model O-360-A4M installed in Piper Archer III with AVStar carburetor model AV10-6102.
This Service Letter is notification of the following two product improvements by AVStar to carburetor model AV10-6102 (Lycoming P/N 61C26051). These product improvements have been incorporated into new O-360-A4M engines with Serial Numbers L-42322-36E and later and engines that were overhauled or rebuilt on or after November 13, 2013.
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