336 rear prop change?

[stevew]

Hello,
Have any of you out there flying a 336, upgraded your original rear prop McCauley D2AF34C61 to a McCauley D2AF34C302?

The D2AF34C61 props were on both the 336s and 337s for rear props. The D2AF34C302 were on the the early 337s.

The D2AF34C302 props are a better prop and eliminate an AD, and are more plentiful and prop shops are still willing to overhaul them.

My question to you all, is have any of you made the change, and what was your approval route to get a field approval and the info that you used to document the swap in the field approval.

Hopefully somebody has done this before, so I don't have to re-invent the wheel again.

Thanks
Steve