Unregulated Voltage

Editorial Staff

Monday, November 23, 2020 at 11:46 AM ET

Verified

Key Takeaways:

Defective voltage regulators are a common cause of electrical charging system failures across various Cessna and Piper aircraft models.
These failures lead to diverse symptoms such as smoke in the cockpit, loss of alternator output, overcharging, or inoperative charging systems.
Pilots often reported alternator malfunctions and had to return to their departure airport due to these electrical system issues.

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Cessna 172M Skyhawk

Burned Voltage Regulator

Editorial Staff