Piper Service Bulletin 977

Chris Iriarte

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Mar 19, 2000, 3:00:00 AM3/19/00

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Has anyone changed a rear spar attach fitting on a Cherokee, as per Piper SB
977?

If so, was jacking the plane necessary? Any other hints?

TIA

Chris I

Paul VanBeber

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Mar 19, 2000, 3:00:00 AM3/19/00

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Chris,

I replaced both rear spar attach fittings on my Cherokee 140 back in
1996. I did use jacks and a tail stand, but just to keep the plane
stable when you crawl around in the back of the plane.

This job was a pain due to the location of the fittings. Let me know
if you run into any snags...I may have encountered the same problem.

Make sure to remove the insulation from that area. The insulation
tends to retain water from leaking rear windows.

Paul VanBeber
(A&P, GROL, Private Pilot)

David Schneider

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Mar 19, 2000, 3:00:00 AM3/19/00

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I am looking at purchasing a 63 piper Cherokee 150 that has 2200TT. I have
not heard of this SB. What is it about? How expensive is it? Does it affect
this model? Where can I get a copy of this SB?
David Schneider

Chris Iriarte wrote in message
<5kVA4.13423$Nn6.4...@newsread2.prod.itd.earthlink.net>...

Chris Iriarte

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Mar 20, 2000, 3:00:00 AM3/20/00

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Two SB's you want to make sure were done are 1006 and 977. These address
main spar corrosion (1006) and rear spar attach fitting corrosion (977).
These two are important because they're not AD's, so it's not mandatory that
they be accomplished. 1006 involves removing the fuel tanks and
checking/treating any corrosion on the main spar. 977 involves taking a
peek under the floor.

Most people don't find any corrosion, but if you do, the main spar must be
treated (don't know the limits off the top of my head) and any corrosion
other than light surface on the rear spar attach fitting requires an R&R,
which is a bit involved, especially on Cherokees with rear cargo space.

Call your local aircraft parts dealer for a copy.

Chris I

David Schneider <schne...@statesville.net> wrote in message
news:38d52...@news1.his.com...

Paul VanBeber

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Mar 20, 2000, 3:00:00 AM3/20/00

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David,

I have both mentioned service bulletins (977 and 1006). If you want,
I will mail you a copy...or I could scan them and email them to ya.
Your call.

1006 is no big deal...unless you find a lot of corrosion. You will
probably want to replace the flex fuel hoses attached to the fuel
tanks. So when you have the tanks out for hose replacement, have a
look at the spar. Chances are good that you will find nothing out of
the ordinary.

"David Schneider" <schne...@statesville.net> wrote:

>I am looking at purchasing a 63 piper Cherokee 150 that has 2200TT. I have
>not heard of this SB. What is it about? How expensive is it? Does it affect
>this model? Where can I get a copy of this SB?
>David Schneider
>
>Chris Iriarte wrote in message
><5kVA4.13423$Nn6.4...@newsread2.prod.itd.earthlink.net>...
>>Has anyone changed a rear spar attach fitting on a Cherokee, as per Piper
>SB
>>977?
>>
>>If so, was jacking the plane necessary? Any other hints?
>>
>>TIA
>>
>>Chris I
>>
>>
>
>

Paul VanBeber
(A&P, GROL, Private Pilot)

Gary

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Mar 27, 2000, 3:00:00 AM3/27/00

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I would also change the small flex hose on the tank vent line as these are prone
to deterioration and leakage.
Gary