My Slick mag just came back after being overhauled by aerosport (full engine IRAN). I think there is something going on with this mag when running at low RPM. But it seems to be fine at high RPM.
Thoughts?
- In-flight mag check at 2400RPM, runs smoothly on the mag. 70 RPM drop.
- On both of the last two flights when i pulled the power back on turn to final, the PRM indication on my EFIS (which is fed from the p-lead on that mag only) momentarily dropped to 0 for a couple of seconds, before returning to normal RPM indication. This happened identically on the last two flights when i pulled the power back to about 800RPM for final (FP prop). This seems really weird??
- After landing i did another mag check at idle and it does not run smoothly on the mag at idle (RPM fluctuates).
Thoughts?