Service Instruction

SI 1397

Lycoming Engines

Issued
2016-06-01
Models covered
3
SI

SI 1397

Lycoming Engines

Issued 2016-06-01

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.

Overflow Oil from Breather Fitting of Inverted Oil System

Source: Lycoming Engines, retrieved 2026-09-01

Applies to 3 models in our index

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