Service Instruction

SI 1572

Lycoming Engines

Issued: 2018-08-02
Models covered: 1

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SI 1572

Lycoming Engines

Issued 2018-08-02

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.

Plug Replacement of Vapor Return Fitting on Piper installation of IO-360- B4A

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