There was an AD several dozen years ago that affected [almost] all McCauley
props. The idea was to fill the hub with red hydraulic fluid so that any leaks
would be immediately apparent to the most casual observer.

Yours is leaking. Seal? Probably. Simple? Nothing on a CS prop is simple.
And, according to part 43, an A&P can't get into the guts of a CS prop by
specific reference.

Sending it to a prop shop is going to be painful, but probably not as painful as
you might expect. Crating and shipping is the royal pain in the ass, and if you
don't mind a crosscountry in the ground vehicle to the prop shop, you are not
looking at a tremendous amount of $$$.

On the other hand, they have to pull it apart anyway, so why not just do the
overhaul for the price of a couple of hours of labor and some dollar parts?

Just my 8% of two bits...

Jim



-
-Any ideas how serious this is? Am I looking at a complete prop
-overhaul? Could it be as simple as a seal that the A &P can replace?
-Something in between ???


Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com