July 6, 2015
Lycoming Engine Models: IO-540-AC1A5, (L)TIO-540-V2AD, TIO-540- AJ1A, TIO-540-W2A, TO-360-C1A6D, TIO-360-C1A6D, TIO-541-E Series, TIGO-541-E1A, and IO-580-A1A Applies to:
- Engines with the serial numbers identified in Table 3
- Cylinder kits identified in Table 2 shipped from the factory between March 2, 2009 and August 17, 2011
- Intake valves (P/N 17A23942) sold as spares with the date stamp identified in Table 1, and shipped from the factory between March 2, 2009 and August 17, 2011. (BOTH conditions must be met, the date stamp on the valve stem AND within the shipping date range.)
TIME OF COMPLIANCE
At next maintenance, 50 hour inspection, or on or before July 23, 2015, whichever occurs first.
REASON FOR REVISION
Date Stamp 4 11 does not apply to this Service Bulletin. Warranty consideration is available until 07/23/2015. See Warranty Instructions for further details.
Product Support Network
Wherever you are in the world, you have access to exceptional expertise and knowledge about Lycoming engines. Get the most comprehensive customer service and support in the general aviation industry.
Get It Exchanged
Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.