Just a quick thread update: I called several prop governor overhaul shops today to get quick quote ideas on cost and lead-time. Here's what I found out:
Supposedly, I have McCauley CF310D1/T1 or CF310D2/T1 governors (per the TDCS) with prop sync, and these are "old numbers", and the numbers are hard to look up and get good quotes, so take everything here with a grain of salt.
My logs say front gov was OH in 1999, the rear gov in 2012. OH engines went on in 2014 and 2018, and MT props in 2014, but no mention of governor OH at the time either the engines or props were installed.
McCauley recommends 5 years or 1800 hours TBO.
My symptoms include "slower than I'm happy with" responses on the feather check, and a little 20-40 RPM "hunting" in climb/cruise.
H&S propeller shop: $1050 each with a 10 day turnaround.
Yes, he quoted me $1050 each, but I think I'd expect something closer to $1500 based on previous posts in this thread.
Tiffin Aire: $1500 each with a 5-7 day turnaround
Quality Aircraft Accessories (QAA): : $1520 each and 10-12 day turnaround
Aircraft Accessories of Oklahoma: $1600 each and 30 day turnaround (or $+175 AOG fee to jump to head of the line).
Based on this small survey, H&S is the winner in 2023. Are there any other shops you've used and can recommend?
-LJ