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DATE: August 23, 2018. Service Instruction No. 1571. Engineering Aspects are. FAA Approved. SUBJECT: Lockplate installation for Induction Housing on 14 Feb 2018 SUBJECT Approved Pistons, Rings, and Cylinders for use on Lycoming Aircraft Engines DATE February 14, 2018 MODELS AFFECTED All 9 Apr 2018 FAA-APPROVED STARTERS AND ALTERNATORS DATE: April 9, 2018 SUBJECT: FAA-Approved Starters and Alternators MODELS13 Feb 2019 Service Instruction No. 1037 V All Lycoming opposed series aircraft engines in Table 2 Lycoming engine models as detailed in Table 3 All Lycoming reciprocating aircraft engines using rotary style fuel pumps Lycoming Engines is a division of Avco Corporation. May 9, 2018 to make sure you have a complete understanding of the requirements. The TBOs stated in this Service Instruction do not apply to engines that: a. Do not conform to the