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Service bulletin
HelicoptersRobinson Helicopter Service Bulletin Targets Governor Controller Upgrades
The maintenance notice affects R44 and R22 series helicopters.
Meg Godlewski![](https://www.flyingmag.com/uploads/2023/07/13000th-helicopter-r44_10A5911.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
![](https://www.flyingmag.com/uploads/2023/03/Cirrus-e1678831539982.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
![](https://www.flyingmag.com/uploads/2022/09/Pilot-and-copilot_adobe-stock-rs.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
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