Hartzell AD

KirkGrovesRV8 · #1 10-28-2009, 08:10 PM

http://rgl.faa.gov/Regulatory_and_Gu...B?OpenDocument

TX7A · #2 10-28-2009, 09:13 PM

I'm having a hard time deciphering the AD, but if an HC-C2YR-1 / 7497 as listed on Hartzel's site is the same as Van's number of C2YR-1BF/F7497 , then it looks like I have one.
I hope I'm wrong.

LifeofReiley · #3 10-28-2009, 09:20 PM

Man... I want one of those constant speed props... NOT...

RBD · #4 10-28-2009, 09:34 PM

Quote:

Originally Posted by 7A_@ABI

I'm having a hard time deciphering the AD, but if an HC-C2YR-1 / 7497 as listed on Hartzel's site is the same as Van's number of C2YR-1BF/F7497 , then it looks like I have one.
I hope I'm wrong.

The -1BF hub is included in the SB, but you need to check your hub's serial number. If the serial number ends in "E" (this would have been stamped in the metal at some point after it left the Hartzell factory to indicate that the initial eddy current inspection was performed) or has no letter suffix, the SB applies. If you hub's serial number ends in "A" or "B," the SB does not apply. The affected hubs were manufactured before 1991, so I'm guessing that you're in the clear.

carl nank · #5 10-28-2009, 09:40 PM

Thanks Kirk.

I am about to do first flight in my plane and recently heard about this AD. I was about to look up the AD and you helped me.

I wonder how many RV's are affected by this expensive AD? Of course now we have to be concerned regarding a ub crack.

I did not need this!

Caveman · #6 10-28-2009, 09:54 PM

Quote:

Originally Posted by 7A_@ABI

I'm having a hard time deciphering the AD, but if an HC-C2YR-1 / 7497 as listed on Hartzel's site is the same as Van's number of C2YR-1BF/F7497 , then it looks like I have one.
I hope I'm wrong.

It finally hit home with me that it is the Hub serial # they are talking about; not the prop model #. I went out after work and pulled the spinner. Mine had the "B" suffix.

You can use the HC-SB-61-269 service bulletin mentioned in the AD to find the serial number. Hartzell has all of this on their web site along with a very useful AD and SB search tool.

Oops! Ryan beat me to it. I'm a slow typer.

jbDC9 · #7 10-28-2009, 09:58 PM

Well huh... that's no good. Looks like I'm not the only one having a hard time translating the text of the AD.

I have the blended airfoil HC-C2YR-1BF/7496-2 which basically fits the description, but my prop paperwork dated Aug '04 shows the "Hub Factory No." as A72169B. The B at the end means I'm good to go (I hope)?

I'm kinda sensitive to prop AD's and hub failures... blades coming off and all that. I had it happen to me once inflight in a C-310; not good. Funny thing though, a few minutes ago I decided to look through the Hartzell website for more info and found they've posted a teeny tiny b/w photo of my damaged 310. I found it here; http://www.hartzellprop.com/flight_s...dex_safety.htm Click on the small pic of the Queen Air with the sad, droopy engine, then scroll halfway down to the "In The Cockpit - During the Runup" section, there's my 310 with a big hole through the nose.

LifeofReiley · #8 10-28-2009, 10:16 PM

I will need to remember that name next time I buy a prop... Hartzell you say... Been there and done that, and have the bloody shirt.

Kind of like BMW, (Bring Money With-you)

flion · #9 10-28-2009, 11:20 PM

Pulling the spinner seemed like too much work so I just looked in the propeller log for the serial numbers...

Caveman · #10 10-29-2009, 05:04 AM

Quote:

Originally Posted by flion

Pulling the spinner seemed like too much work so I just looked in the propeller log for the serial numbers...

Guys, My "assembly" serial # on the paperwork is the same as my "hub" serial #. I suggest using the service bulletin to locate the proper serial #.