Service Instruction

SI 1409

Lycoming Engines

Issued
2009-02-20
Models covered
8
SI

SI 1409

Lycoming Engines

Issued 2009-02-20

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.

Lycoming Engines P/N LW-16702, Oil Additive

Source: Lycoming Engines, retrieved 2026-09-01

Applies to 8 models in our index

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