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701 Hard Landing

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dgraham7(at)twcny.rr.com
Guest

Posted: Sat Sep 20, 2008 4:31 am Post subject: 701 Hard Landing

Group:

I am looking at a 701 that is for sale.  It is a nice looking plane but 2 years ago it had a real hard landing. The  landing gear had to be replaced.

 What and where should I be looking for to make sure  that the structure has not been damaged ?  I think that the plane has gone  through 2 or 3 annuals since then, so I am hoping that is a good  sign.

 Thanks.

    [quote][b]

dgraham7(at)twcny.rr.com
Guest

Posted: Sat Sep 20, 2008 7:10 am Post subject: 701 Hard Landing

Group:

 Never mind about the the signs and symptoms of hard  landing damage. I will try to take my A and P for a ride out there and have  him take a look.

 Do Not Archive

 

 

 [quote]   ---

ricklach

Joined: 20 Jun 2006
Posts: 127
Location: Kernville, Calif.

Posted: Sun Sep 21, 2008 7:25 am Post subject: Re: 701 Hard Landing

I would not doubt that you’re A&P is a very qualified person, but if he has not repaired a 701 after a hard landing he might not know exactly where to look for problems. I've repaired two hard landing 701's. Both hard landings were from the same mistake, they pulled power to soon at too low an airspeed. This is typical in a 701 and results in the big bounce. The big bounce bends the main gear out and then after the big bounce the plane pitches forward and lands on the nose gear, and if it’s a real big bounce it then continues forward over on to it’s back. 



There are two places to look to see how bad the bounce was. The main gear area. It dose not ripple the out side skin but it flexes the box that the gear is recessed in that runs from right to left under the seats. Go in from the belly access door with a flash light and look at the box for kinks about 6 to 10 inches inboard from the steel gear/strut mount.  If they were bad kinks they should have been repaired with doublers in that area. You should also look from under the aircraft in this area for kinks in the box and around the floorboard.



The second place to look for problems is the nose gear. If the gear has been bottomed from a hard landing or a big bounce the strut comes up and hits the engine mount tubes. You can’t see it because it’s between the firewall and the mount tubes. But you can sure feel it with your fingers. Also you will find ripples in the belly skin round the triangular plate that mounts the nose gear strut to the bottom of the fuselage. 



Also if it did go up on to the nose gear but did not go over it most likely hit one of the wing tips as it pivoted and came back down. This would have damaged the slat at the wing tip and required repair. 



None of these problems are killer. The 701 is a rugged airplane and be repaired easy. 



Hope this helps you’re A&P.



Rick

_________________
701Driver
N35 26.700, W118 16.743

Joe Kidd

Joined: 01 Aug 2008
Posts: 15
Location: TN

Posted: Sun Sep 21, 2008 8:41 am Post subject: 701 Hard Landing

Rick,

  

 Excellent post, I've saved to to my "need to keep" file, thanks a lot, this is thkind of information I love to learn about from others and why I joined the list.

  

 Joe

  

 Do Not Archive 



 

 ---

kmccune

Joined: 22 Sep 2007
Posts: 577
Location: Wisconsin, USA

Posted: Sun Sep 21, 2008 9:09 am Post subject: Re: 701 Hard Landing

I'll second that, good info.



Kevin

_________________
“Always do what you are afraid to do.”
R.W. Emerson (1803-1882)

"Real freedom is the sustained act of being an individual." WW - 2009

"Life is a good deal...it's worth it" Feb 1969
Dorothy McCune

dgraham7(at)twcny.rr.com
Guest

Posted: Sun Sep 21, 2008 10:41 am Post subject: 701 Hard Landing

Rick:

Thanks for the info. It will be very useful for the future. Unfortunately I

have since found out that in addition to the hard landing it also had a prop

strike. That is more damage history than I want to deal with, but the search

goes on.

Regards,

Damien

DO NOT ARCHIVE

---

craig(at)craigandjean.com
Guest

Posted: Sun Sep 21, 2008 10:47 am Post subject: 701 Hard Landing

Was this a 701 on Barnstormers? If so, which one?



-- Craig



--

dgraham7(at)twcny.rr.com
Guest

Posted: Sun Sep 21, 2008 11:15 am Post subject: 701 Hard Landing

It was the one in Kentucky. Nice looking plane, nice paint job. I have not 

looked at the plane in person, Kentucky is just too far away (I live in NY) 

for me to be able to properly evaluate the airplane for damage.

Regards,

Damien

DO NOT ARCHIVE



---

ricklach

Joined: 20 Jun 2006
Posts: 127
Location: Kernville, Calif.

Posted: Sun Sep 21, 2008 5:58 pm Post subject: Re: 701 Hard Landing

Thank You all for your kind comments.

_________________
701Driver
N35 26.700, W118 16.743

lgold(at)quantum-associat
Guest

Posted: Mon Sep 22, 2008 10:32 am Post subject: 701 Hard Landing

Damien,

 You need to know how it hard-landed. If the the  nose gear sheared you need to be concerned about engine damage from a prop  strike. I would look at everything, but more carefully at the longerons  (any bending is a no-no), horizontal stab supports  (they could have cracks), and structure around the gear for bends  or cracks. Also look at the wing attachment points on the fus. If the noise  gear was ok, probably so is the engine and mount. 701's are very  strong but its a good idea to check everything  carefully.

 Les 



 [quote]         From:    owner-zenith701801-list-server(at)matronics.com    [mailto:owner-zenith701801-list-server(at)matronics.com] On Behalf Of    Damien and Kathy

Sent: Saturday, September 20, 2008 5:31    AM

To: zenith701801-list(at)matronics.com

Subject:    701 Hard Landing

   

   Group:

I am looking at a 701 that is for sale.    It is a nice looking plane but 2 years ago it had a real hard landing. The    landing gear had to be replaced.

   What and where should I be looking for to make    sure that the structure has not been damaged ?  I think that the plane    has gone through 2 or 3 annuals since then, so I am hoping that is a good    sign.

   Thanks.

 	  Quote: 	
		  



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[b]

dgraham7(at)twcny.rr.com
Guest

Posted: Tue Sep 23, 2008 7:50 pm Post subject: 701 Hard Landing

I want to thank everyone for their helpful comments  and advice regarding how to evaluate a 701 after a hard landing. As someone  pointed out, this collective knowledge is why we belong to this  group.

 Regards,

 Damien

 DO NOT ARCHIVE

    [quote][b]

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