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Old April 22nd 07, 05:10 AM posted to rec.aviation.owning
Robert M. Gary
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Posts: 2,767
Default Hartzell AD Followup

On Apr 21, 5:19 am, Doug Vetter wrote:
Robert M. Gary wrote:
1) Hartzell has admited that the current hub has a design flaw and is
offering a beefed up hub to avoid the inspection.


Where did they admit this? Improving a design is not the same as
admitting that there is a design flaw in the previous version. I'm not
defending them...just pointing that out.


The letter I received said that the current design is subject to blade
separation and that the new design addresses this.

2) The new hub deal requires you have servicable blades. They will not
be able to put 30 year old blades on a new hub. Figure $6K to replace
blades and hub.


Since when does age have anything to do with it? If the blades meet
serviceable limits (various physical criteria), they'll be fine. I've
already been told that.


If the prop does not have enough metal left, it is illegal to
reinstall it. I'm assuming if your prop is 30 years old enough metal
has been removed during facing and O/H's that there will not be
enough. If not, good for you.

-Robert