Lycoming engines referenced in Table 1 in this Service Bulletin and Fuel Servo models referenced in Attachment A and Lot Numbers of fuel diaphragms and kits referenced in Attachment B in the AVStar Mandatory Service Bulletin AFSSB6 Revision 2.
TIME OF COMPLIANCE
Within the next 5 hours of engine operation.
The purpose of this Service Bulletin is to identify all Lycoming engines that could have a faulty fuel diaphragm in fuel servos made or overhauled by AVStar as per the attached AVStar Mandatory Service Bulletin AFSSB6 Revision 2 dated April 6, 2011.
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