Supersedes Service Instruction No. 1187H
DATE: May 23, 1997
TIO-540-A1A, -A1B, -A2A, -A2B, -A2C, -C1A, -F2BD, -J2B, -J2BD, -N2BD, -AA1AD, -AB1AD, -AF1A, -AF1B, -AG1A; LTIO-540-F2BD, -J2B, -J2BD, -N2BD.
TIME OF COMPLIANCE
On newly installed engines; before aircraft is flown. Also recommended at 100 hour inspection or at owner's discretion.
Although engines are thoroughly tested after manufacture, it is impossible to duplicate the individual installation characteristics an engine will encounter in the aircraft; consequently, the density controller, which governs the turbocharging, must be adjusted after the engine is installed and before the aircraft is flown.
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.