Service Instruction

SI 1503

Lycoming Engines

Issued: 2017-08-21
Revision: -
Document type: SI
Models covered: 0

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SI 1503

Lycoming Engines

Issued 2017-08-21

Manufacturer - not an FAA rule

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.

Accessory Drive Gear and Shaft Dowel Replacement

Source: Lycoming Engines, retrieved 2026-09-01

View on Lycoming Engines' site

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