Dear E-MAG,

After uneventful three hour cross country flight, my engine quit and would not restart while taxing to the hangar.  The Lycoming engine has a Lightspeed Electronic Ignition and a backup P-MAG for ignition.  When tracking down the problem, I discovered I had wired both the P-MAG and the Lightspeed to a shared common negative ground point.  The ground connection was corroded thus allowing no ships power to flow to either ignition system.

After reflecting on my trip, I realized that at some point in the flight the power had simultaneously failed to both ignition systems.  I had flown at least two hours completely unaware the P-Mag was my only source of ignition.  Unlike the roughness of my previous magneto, the P-MAG causes no change in smoothness or sense of lost power.  The engine quit only after the engine rpm was reduced to a point where the P-MAG could no longer supply its own internal power (per design). 

With absolute certainty, I fully credit your P-MAG for saving my plane and most likely my life. 

Sincerely,

Nick Ugolini

LongEZ N29TM

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E-MAG Ignitions (TM)

2014 Greg Street. Azle, Texas 76020 

Copyright 2006.  All products, features, and prices are subject to change without notice.