Service Letter No. L 114 BL

Reciprocating Engine and Accessory Maintenance Publications

Publications
SERVICE LETTER NO. 114 BL
RECIPROCATING ENGINE AND ACCESSORY MAINTENANCE PUBLICATIONS 
DATE:

January 15, 2026

TO:

Owners and Operators of Lycoming Aircraft Engines

REASON FOR REVISION:

Updated contact information and references for Veryon (formerly ATP) and TBX (formerly Tdata).
Updated revision levels for TEO-540-C1A in Table 1.
Updated parts catalog numbers for several engine models. Updated the revision levels for SSP-110, SSP-112, and SSP-875 in Table 3.
Added IRM-iE2 and SSP-525 to Table 3.
Revised the release date for the current version of 60294-8 in Table 1.
Added PowerUp magnetos to the list of vendors.