Grob Astir AD spar spigots

On Apr 20, 1:55 pm, "Bill Daniels" bildan@comcast-dot-net wrote:
Contact Robert Mudd in Moriarty, NM. I know that he has done at least one
of them.

Bill Daniels


Thanks, I will call and talk to him. It's a long drive from
Connecticut to New Mexico though.

Todd

Todd,
The work must be done in a FAA certifid glider repair station, like
John Murry's or Gehrlein in your neck of the woods. it involves about
20 hours of work + the cost of the kit from Grob. It involves
assembling the ship with wax donuts on the old spigots to determine
the excess lateral slop that must be removed when the new spigots are
installed, then grind and remove the old, then fit the new with
factory jig, scarf spar but and lay up 8 layers of 92125 for the
replacement spar wrap. I would estimat $1800 to $2400 bucks.
JJ

JJ,
Would Rutan style 7725 be a similar cloth to the 92125 European cloth?
Thanks,
Brad


On Apr 20, 5:20 pm, JJ Sinclair wrote:
Todd,
The work must be done in a FAA certifid glider repair station, like
John Murry's or Gehrlein in your neck of the woods. it involves about
20 hours of work + the cost of the kit from Grob. It involves
assembling the ship with wax donuts on the old spigots to determine
the excess lateral slop that must be removed when the new spigots are
installed, then grind and remove the old, then fit the new with
factory jig, scarf spar but and lay up 8 layers of 92125 for the
replacement spar wrap. I would estimat $1800 to $2400 bucks.
JJ

On Apr 22, 10:25 am, Brad wrote:
JJ,
Would Rutan style 7725 be a similar cloth to the 92125 European cloth?
Thanks,
Brad
Yep, but when working with certified aircraft like the 102, one must
use the specified stuff. The kit I got from Grob had per-cut 92125
sections, everything but resin...............BTW, Williams Soaring
(Rex) just got 50 gallons of L285 epoxy at half the price that Spruce
& Seciality is getting.
JJ

JJ,

Thanks a lot for this information.

It was a factory supplied jig that was used for the replacement ?

Todd


On Apr 20, 8:20 pm, JJ Sinclair wrote:
Todd,
The work must be done in a FAA certifid glider repair station, like
John Murry's or Gehrlein in your neck of the woods. it involves about
20 hours of work + the cost of the kit from Grob. It involves
assembling the ship with wax donuts on the old spigots to determine
the excess lateral slop that must be removed when the new spigots are
installed, then grind and remove the old, then fit the new with
factory jig, scarf spar but and lay up 8 layers of 92125 for the
replacement spar wrap. I would estimat $1800 to $2400 bucks.
JJ

On Apr 23, 8:46 am, toad wrote:
JJ,

Thanks a lot for this information.

It was a factory supplied jig that was used for the replacement ?

Todd

On Apr 20, 8:20 pm, JJ Sinclair wrote:

Todd,
The work must be done in a FAA certifid glider repair station, like
John Murry's or Gehrlein in your neck of the woods. it involves about
20 hours of work + the cost of the kit from Grob. It involves
assembling the ship with wax donuts on the old spigots to determine
the excess lateral slop that must be removed when the new spigots are
installed, then grind and remove the old, then fit the new with
factory jig, scarf spar but and lay up 8 layers of 92125 for the
replacement spar wrap. I would estimat $1800 to $2400 bucks.
JJ

Todd, Did you happen to notice the 3/21/05 response date on the
Airworthiness Concern Statement?

Todd, Did you happen to notice the 3/21/05 response date on the
Airworthiness Concern Statement?

Yes, at least after it was pointed out :-) I think that there might
be a typo. The real deadline for comments in May 11th, I think.

Todd

On Apr 23, 10:11 am, toad wrote:
Todd, Did you happen to notice the 3/21/05 response date on the
Airworthiness Concern Statement?

Yes, at least after it was pointed out :-) I think that there might
be a typo. The real deadline for comments in May 11th, I think.

Todd


Correct, 5/11/2007 is the deadline for comments into the AOPA.

Jim