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Service Bulletin

SB 628

Lycoming Engines

Issued
2023-02-10
Models covered
5

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SB

SB 628

Lycoming Engines

Issued 2023-02-10

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’ (HET) ALERT SERVICE BULLETIN (ASB) 076

Source: Lycoming Engines, retrieved 2026-09-01

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

Applies to 5 models in our index

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