Service Instruction

SI 1586

Lycoming Engines

Issued: 2021-12-21
Models covered: 1

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SI 1586

Lycoming Engines

Issued 2021-12-21

NOT AN FAA REQUIREMENT — This is a manufacturer document. It is not an FAA Airworthiness Directive and compliance is not required by 14 CFR 39 unless an AD cites it.

Oil Filter Base Bypass Spring Replacement

Source: Lycoming Engines, retrieved 2026-09-01

View on Lycoming Engines' site

Applies to 1 model in our index

Lycoming O-360 Lycoming Engines · engine