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Baron 56TC Prop governor

I’m replacing the left prop governor on my Baron 56TC and I have a spare Woodward governor (p/n 210556) from the right engine when it was overhauled. This governor has 2 wires. After I removed the governor, I found out it has a different Woodward p/n which is 210726 and it has 4 wires. 2 wires similar to p/n 210556 and another 2 wires coming from the inside of the governor. The 56TC parts book calls for p/n 210556. Can anybody tell me what those wires are for? Can I hook up the 2 similar wires and just terminate the other 2 wires?

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Model: Baron 56TC
Aircraft Serial Number: TG-37
Posted 8/8/2022 - 1 year ago
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My 56 IPC shows the same 210556 you came up with on both sides. I note the syncrophaser uses a separate box/motor/drive cable like the Duke uses; that would indicate a different governor arm is used. I don't know for certain, but suspect the 4 wire governor is used with the syncrophaser, and the two wire is used with the pilot sync wheel. (The governor used with the syncrophaser is a Beech part number, not a Woodward.) I do not have a 56TC wiring diagram to substantiate this. From the Woodward website: "For details on specific engine components, please contact Woodward's customer support." Phone number listed is 800-543-5811.

Mike
ABS Tech Advisor

Posted 8/8/2022 - 1 year ago
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Baron 56TC Prop governor