Unregulated

Editorial Staff

Tuesday, November 22, 2022 at 12:53 PM ET

Verified

Key Takeaways:

Voltage regulators are a frequent point of failure across various aircraft types, leading to diverse electrical system malfunctions such as overvoltage conditions, generator/alternator trips, internal shorts, and overheating.
Observed failures include new units shorting internally, resistors overheating and causing smoke, and regulators preventing proper overvoltage testing on solid-state systems.
Issues extend to difficulties in testing certain solid-state voltage regulators, with one technician recommending a change in test procedures to include bench testing due to the inability to adequately test overvoltage relays in situ.

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Beech C33A Debonair

Shorted Voltage Regulator

Editorial Staff