Service Letter No. 242
Improved Lower Idle Valve in Fuel Injectors
January 6, 2005
To all Owners and Operators of Lycoming IO-360-L2A, IO-540-AB1A5, IO-540- AC1A5, TIO-540-AJ1A and TIO-540-AK1A Engines Installed in Cessna Aircraft.
As a product improvement an improved lower idle valve has been introduced into the fuel injectors used on IO-360-L2A, IO-540-AB1A5, IO-540-AC1A5, TIO-540-AJ1A and TIO-540-AK1A engines installed in Cessna Aircraft. This new valve is more tolerant of contaminants that may be in the fuel. (See the attached Precision Letter.)
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