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Aircraft maintenance TroubleShoot> Propeller De-ice

Ammeter flicks between 90 second phase periods

1. Loose connection between aircraft power supply and timer input.

2. Loose or poor connection; timer to deicers. If trouble occurs only part of the cycle, determine which deicer is affected and check for rough or dirty slip rings causing brush to skip.

3. Timer cycling erratically.

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Disclaimer: sacskyranch.com contains abundant information relating to aircraft maintenance. The information provided is not intended to supercede or supplement the F.A.A. approved maintenance and/or operator’s manuals. Those F.A.A. approved manuals must be utilized when performing maintenance and/or operating aircraft.