Uploaded April 2021 | Updated September 2026, 2 weeks ago

---

We check the magnetos on the ground during the run-up, before take-off, right? Well... there is a better way to check your airplane's ignition system, a way which is more likely to highlight small problems before they become big enough to ground the airplane. In this video, Martin explains how an inflight LOP mag check works, what makes it better than the ground check all pilots learn to do in flight training, and - very important - the recovery procedure should the test fail.

0:00 Case for change
1:22 LOP mag check demonstration
2:49 What if there is a problem?
4:15 Recovery procedure
6:14 Conclusion
6:58 Outtakes

==========================================
Support Martin's work on Patreon:
patreon.com/martinpauly
==========================================
Martin on Social Media:
YouTube: youtube.com/martinpauly
Web: https://www.martin.aero
Instagram: instagram.com/n70tb
Twitter: twitter.com/_Martin_Pauly
FaceBook: facebook.com/N70TB
==========================================
Martin's Bonanza on FlightAware:
flightaware.com/live/flight/N70TB
==========================================