Thank you for responding to TCM's Mandatory Service Bulletin MSB09-1B regarding cylinders used on 470, 520 and certain 550 engines. This page will help you begin the process to determine if you will be affected.

In addition, you can find key information regarding this issue by clicking the links related to MSB09-1B, President's letter and Frequently Asked Questions.

Please begin by responding to the three information questions below.

1. Since August 1st 2006, have you purchased a new airplane powered by an engine manufactured by Teledyne Continental Motors?
2. Since August 1st 2006, have you purchased a new or rebuilt engine from Teledyne Continental Motors?
3. Since August 1st, 2006, have you had a cylinder replaced on your engine. Was the cylinder a Genuine Continental TopCare Cylinder?