Service Letter No. L289

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.

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