Service Letter No. L 289

Valve Spring Part Numbers

Publications
SERVICE LETTER NO. L289
Valve Spring Part Numbers
DATE POSTED:

March 2, 2022

TO:

All Owners, Operators, and Maintenance Providers of Lycoming Aircraft Engines

REASON FOR PUBLICATION:

Lycoming has released new valve springs with new part numbers that are interchangeable with the old valve springs.

Get It Exchanged

Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.