Supersedes Service Instruction No. 1458F and Obsoletes Service Instruction Nos. 1106D, 1311A, and 1318
November 10, 2015
All supported Lycoming reciprocating aircraft engines
TIME OF COMPLIANCE
Whenever new connecting rods and/or new connecting rod bolts are being installed
REASON FOR REVISION
Clarified connecting rod bolt selection and installation instructions, added new Figure 1, revised part numbers in Table 1, and added information from obsolete Service Instructions
This Service Instruction identifies currently available connecting rod assemblies, the applicable connecting rod bolt part numbers (P/Ns), specific requirements, and installation instructions for the various connecting rod bolts. Table 1 includes connecting rod bolt P/N LW-12596 which can be used as either a stretch bolt or torque bolt (indicated by the green or blue shading). Table 2 includes connecting rod assemblies no longer available from Lycoming Engines.
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