lvpazik Posted July 20, 2022 Report Posted July 20, 2022 Hi. I own a 1979 Mooney M20K N922PT Serial Number 25-0273 Trying to locate/purchase a “master” power switch. The one I’ve got is failing and working only part of the time. Quote
Fly Boomer Posted July 20, 2022 Report Posted July 20, 2022 14 minutes ago, lvpazik said: The one I’ve got is failing and working only part of the time. Many articles here on MooneySpace. Type this into your favorite search engine: site:mooneyspace.com master switch Quote
carusoam Posted July 21, 2022 Report Posted July 21, 2022 8 hours ago, lvpazik said: Hi. I own a 1979 Mooney M20K N922PT Serial Number 25-0273 Trying to locate/purchase a “master” power switch. The one I’ve got is failing and working only part of the time. It’s summer… Many Relays have taken a holiday… Check to see if your switch isn’t working or if it is the relay that is connected to it… Switches can be ridiculously expensive… but aircraft spruce has them… the Master is a lower cost switch because it isn’t a CB. Your local MSC probably has them as well… If you don’t have a local MSC… find Dan at Lasar… Bust out the voltmeter… Prove your switch working first… then find the relay… relays often fail quietly… sometimes they buzz instead…. PP thoughts only, not a mechanic… Best regards, -a- Quote
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