Originally Posted by
The Nr Fairy
I no longer have a copy of the R22 or R44 POH but online PDFs have caution sections saying it's not recommended - if you forget to push full rich on the way down to lower altitudes, the engine may stop due to being over lean ...
all our POH’s are available for free on our website, the link below goes to the section you are referring to. I’ve also attached a screenshot to explain what you are talking about. The preferred approach is to not lean at all. But if you do, you will need to adjust back if you change operating altitudes.
https://robinsonstrapistorprod.blob....6581e57af0.pdf