Service Bulletin No. 660

REPRINT OF SLICK/CHAMPION AEROSPACE SERVICE BULLETIN SB1-24A
DATE:

September 20, 2024

MODELS AFFECTED:

All 4 and 6-cylinder Lycoming engines equipped with Slick 4300 or 6300 Series Impulse Coupled Magnetos.

TIME OF COMPLIANCE:

As required in the Slick/Champion Aerospace Service Bulletin SB1-24A

Service Letter No. L 267 A

Service Letter No. L267A
(Supersedes Service Letter No. L267)

DATE RELEASED:

March 21, 2024

TO:

All Owners and Operators of Lycoming Aircraft Engines

REASON FOR REVISION:

Changed Web Address under Warranty and Owner Registration Steps. Deleted screenshots affiliated with the old web address.

Service Bulletin No. 655 - Undersized Turbocharger Journal Bearing

HARTZELL ENGINE TECH (HET) SERVICE BULLETIN (SB) No. 203
DATE:

January 4, 2024

MODELS AFFECTED:

Turbochargers manufactured, rebuilt or overhauled by HET and HET turbocharger Overhaul Kits shipped between 10/31/2022 and 5/17/2023 with less than 50 hours time in-service for the turbocharger.

TIME OF COMPLIANCE:

If applicable, immediately perform a one-time inspection of the affected turbocharger.

Service Letter No. L 114 BK

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

December 14, 2023

TO:

Owners and Operators of Lycoming Aircraft Engines

REASON FOR REVISION:

Updated the revision dates for engine model TEO-540-C1A in Table 1.
Updated the parts catalog listing for the YO-233-B2A in Table 2.
Updated revision level for SSP-112 in Table 3. Added SSP-122 to Table 3.
Removed the page number reference in the Vendor Addresses section.