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Service Bulletin

SB 594

Lycoming Engines

Issued
2011-01-10
Models covered
2

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SB

SB 594

Lycoming Engines

Issued 2011-01-10

Manufacturer's own classification: “Mandatory Service Bulletin”. The manufacturer's classification is not an FAA requirement.

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.

Reprint of Hartzell Engine Technologies LLC Mandatory Service Bulletin 040A

Source: Lycoming Engines, retrieved 2026-09-01

View on Lycoming Engines' site (opens in a new tab)

Applies to 2 models in our index

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