Chock2throttle
Topic Author
Posts: 23
Joined: Fri Aug 20, 2004 7:13 am

Fuselage Crack On This 763!

Fri Sep 24, 2004 9:01 am

After looking at this photo, and seeing it is only a couple of years old. Is this A/C out of service for good?

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Photo © Claudio Sallaberry



You can see the Number 1 engine being removed!

[Edited 2004-09-24 02:02:53]
 
fspilot747
Posts: 3455
Joined: Mon Nov 01, 1999 2:58 am

RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 9:18 am

I wonder what that landing must have felt like.

Edit: Nevermind. After viewing that video of the DC-9 tail falling off after a hard landing, I changed my post.

[Edited 2004-09-24 02:26:05]
 
Chock2throttle
Topic Author
Posts: 23
Joined: Fri Aug 20, 2004 7:13 am

RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 9:26 am

Well, after further thought. If they are removing the engines, I do believe this aircraft has seen its last cycle. Such a short lived life.
 
Theiler
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 9:41 am

That aircraft had a rotten landing in La Paz (I believe) where they caught a gust on landing, and dropped it on the nose gear... not a good idea.

There was some talk about repairing it, but I don't think that LAB has much money for anything at this point.

It has been sitting at Santa Cruz for the past month. When I was down there, the #1 engine had been removed. When we were departing Santa Cruz for Miami, we lost the #1 engine on their other 767, so I would guess that they did a swap-out.
 
air2gxs
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 11:00 am

Point of fact: There is no number 1 or number 2 engine on N767 (or B757). They are named Left & Right. (pet peeve)
 
AUAE
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 12:02 pm

??Air2gxs?? I have always heard twin jet engines refered to as #1 and #2.

The damage looks pretty bad, but far worse has been repaired before. Repairing the damage seen would take a lot of jack standing and jigging. The skins and frames could be replaced with some effort. The bad thing is, I would think you would need to do a whole plane inspection for other damage and overstressed parts. Tail strikes are well understood, but I can't say I have seen oil can damage that bad that far up the fuselage. I would be wondering how well the stringers held up along the top of the plane.

Shawn
Air transport is just a glorified bus operation. -Michael O'Leary, Ryanair's chief executive
 
L-188
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 12:23 pm

Just removing and engine doesn't mean much.

No point in tying up a perfectly good engine while the management is making a decision and fighting the insurance company.

It they had started to pull the LG off the aircraft, then I would be a wee bit more concerned for that aircrafts future.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.
 
miamiair
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 7:25 pm

While a repair process would be time consuming, it would be more economical than replacing the various skin sections. It is not impossible, nor is it terribly expensive.

The only problem, would be that repairs like of this nature are external doublers, there will be issues with future skin inspections of the crown area.
Molon Labe - Proud member of SMASH
 
MD11Engineer
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 8:10 pm

To me it doesn´t look like a crack, but like stringers and skin dented between two frames due to being on the INSIDE of the bend (compression loads). Cracks through tension loads would be on the bottom of the fuselage. There is probably other damage to the nose gear trunnion bearings and their surrounding structure as well. Concerning rthe skin / stringer damage, similar damage has been repaired on the famous LH 747-200F , which suffered a jacking accident in FRA.

Jan
Je Suis Charlie et je suis Ahmet aussi
 
Mender
Posts: 248
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 9:34 pm

A full heavy landing check is detailed in the AMM. This includes removing the undercarriage and pylon fuse pins for inspection. There are plenty of aircraft still flying around today which have suffered far worse damage than this.
 
AUAE
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 9:34 pm

I agree Jan, mostly compression damage up top. I wonder how well the bottom faired. Probably severed several stringers on the lower lobes. Good point on the trunions and bearings, makes me wonder how well the wheel well structure held up. That would be a very bad repair to have to engineer down there in the pressure skin area!

Shawn
Air transport is just a glorified bus operation. -Michael O'Leary, Ryanair's chief executive
 
AAR90
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 10:38 pm

While a repair process would be time consuming, it would be more economical than replacing the various skin sections. It is not impossible, nor is it terribly expensive.

AA had a 763 with a similar cracked fuselage due to a hard landing in France some years ago. The plane was "patched" (don't know exactly what/how) and ferried (unpressurized, low altitude flights) to AFW for eval & repair.

The only problem, would be that repairs like of this nature are external doublers, there will be issues with future skin inspections of the crown area.

In AA's 763 situation the plane was repaired and you can not tell it from any other AA 763...unless you saw the maintenance logs.  Wink/being sarcastic

*NO CARRIER* -- A Naval Aviator's worst nightmare!
 
OPNLguy
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RE: Fuselage Crack On This 763!

Fri Sep 24, 2004 10:59 pm

>>>The plane was "patched" (don't know exactly what/how) and ferried (unpressurized, low altitude flights) to AFW for eval & repair.

Man, talk about a long schlep for a maintenance ferry flight....  Big grin
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
 
MD11Engineer
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RE: Fuselage Crack On This 763!

Sat Sep 25, 2004 12:06 am

I think in this case the repair would consist of replacing / splicing the damaged stringers and replacing complete skin panels. It can be done, but needs a good jig to keep everything in alignment. I´ve seen the Boeing crash crew relace a complete skin panel once on a Iberia 767. They came with all the gear they needed, incl. a dismantelable jig and their own coffee/coke machines!

Jan
Je Suis Charlie et je suis Ahmet aussi
 
JHSfan
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RE: Fuselage Crack On This 763!

Sat Sep 25, 2004 12:07 am

The Boeing 747-200F mentioned above, D-ABYZ, can be seen on these pics

MyAviation.net photo:
Click here for bigger photo!
Photo © Zrh2004
MyAviation.net photo:
Click here for bigger photo!
Photo © Zrh2004



MyAviation.net photo:
Click here for bigger photo!
Photo © Zrh2004



On
MyAviation.net photo:
Click here for bigger photo!
Photo © BKR

the Boeing 747 plane is described as an A340 ??????
But at least we get to know the location - FRA.

As you can see the damage was serious, but not fatal to the plane.

Looking for a newer picture of D-ABYZ shows the result of the repair work done  Smile/happy/getting dizzy

View Large View Medium
Click here for bigger photo!

Photo © Alex Peter



Getting back to the 767 - removing the engines does not mean the end of the plane. The airline may wait a while before the plane is fixed. In the meanwhile the engines are used on another plane. Remember that engines are expensive.

Yours in realtime
JHSfan
Look at me, I´m riding high, I´m the airbornmaster of the sky...
 
MD11Engineer
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RE: Fuselage Crack On This 763!

Sat Sep 25, 2004 1:21 am

Also remember, engines don´t become any better if they are just sitting there. They either must be preserved or used.

Jan
Je Suis Charlie et je suis Ahmet aussi
 
AAR90
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Joined: Fri Jan 21, 2000 11:51 am

RE: Fuselage Crack On This 763!

Sat Sep 25, 2004 5:09 am

Man, talk about a long schlep for a maintenance ferry flight....

If memory serves....three flight segments over 2-1/2 days to complete, all at 10k or below.
*NO CARRIER* -- A Naval Aviator's worst nightmare!
 
OPNLguy
Posts: 11191
Joined: Tue Jun 15, 1999 11:29 am

RE: Fuselage Crack On This 763!

Sat Sep 25, 2004 5:16 am

>>>If memory serves....three flight segments over 2-1/2 days to complete, all at 10k or below.

Beats the heck out of my DAL-PAE via ABI, ELP, PMD and up the west coast...  Big grin
ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
 
TimT
Posts: 168
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RE: Fuselage Crack On This 763!

Sat Oct 02, 2004 1:17 pm

TWA had a freshly rebuilt nose gear drag link break while moving the aircraft in/out of the hangar in MCI several years ago. Totally mashed everything from the back of the avionics bay (don't remember the station number) to the front of the nose gear doors and put a wonderful kink in the upper fuselage. After everyone did the "uh-oh" number, they jacked it up, installed a new gear, fixed the sheetmetal damage and x-rayed the whole thing. When they jacked it, the kink sort of went away. Inspection didn't find any other damage. They did a metallurgical inspection on the link- intragranular corrosion.

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