The inability to achieve normal power output (poor static power) can be an insidious, difficult to troubleshoot condition that ultimately affects almost every small engine sooner or later. Many times, the cause can be pinpointed quickly via EGT (or multi-probe CHT) indications. But many times, it can't. It is more frequently encountered in engines that have not reached TBO but have decades of sitting between flights with sometimes as few as 50 hours a year of operation. Also, flying past TBO may increase the occurrence of this condition. Static power is relatively easy to check with a fixed-pitch prop at standard atmospheric conditions.
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