Service Instruction No. 1511 A

Inspection of "PID" Stamped Crankshafts

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Supersedes Service Instruction No. 1511

May 26, 2005


The following Textron Lycoming four cylinder engines which utilize fixed pitch propellers except those installed in rotary wing aircraft. All 320 series engines; and All 180 horsepower, 360 series engines except the O-360-A4A, -A4D, -A4G, -A4J, -A4K, -A4M, -A4N, -A4P, -C4F, -C4P, and AEIO-360-B4A engine models.


At overhaul.

The inspection of “PID” crankshafts is made only after the removal of crankshaft from the engine and the URETHABOND 104 has been machined off.

Overhauled Engines

A Lycoming overhauled engine puts you back in flight in no time. Exchange your like-model complete operating engine for full core value and update to the most current features and parts backed by a Lycoming warranty.

Get It Exchanged

Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.