Stealthz
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QF 734 - Strange Marks?

Sun Sep 11, 2005 7:43 pm

Hi all,

A friend of mine took this photo Friday, He is(I am as well) curious as to what these marks on the rear fuselage may be.
The grey lines..


http://www.pbase.com/chrisg/image/49072373.jpg

Cheers

Chris
If your camera sends text messages, that could explain why your photos are rubbish!
 
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HAWK21M
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 2:22 am

Could it be a part of a new Livery/Paint Scheme,Or some Mod comming up [Creasebeam].

View Large View Medium
Click here for bigger photo!

Photo © David Knudsen
View Large View Medium
Click here for bigger photo!

Photo © Chris Van Lint


Not Visable on these Pics too.
regds
MEL

[Edited 2005-09-11 19:34:59]
I may not win often, but I damn well never lose!!! ;)
 
RedDragon
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 3:11 am

This reminds me of the marks on some ancient FR 732s:
View Large View Medium
Click here for bigger photo!

Photo © Steven Grace
View Large View Medium
Click here for bigger photo!

Photo © Fred Seggie - WorldAirImages


View Large View Medium
Click here for bigger photo!

Photo © Gary Watt - AirTeamImages

The upper mark on the QF bird appears like it might be running along the top of the window belt, as the FR marks do.

Incidentally, the second FR picture caption reads "This is one of four grounded Ryanair 737-200's at Prestwick due to scratching of the fuselage that was discovered during maintenance checks". You'd have to hope that the scratching that caused the grounding wasn't the incredibly obvious lines that would hardly need "maintenance checks" to notice, wouldn't you?  Smile Or was it just a question of the severity of the damage?

Rich
 
AR1300
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 7:55 am

looks like worn out paint, IMO.  Smile

Mike
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rendezvous
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 8:42 am

Do you have to remove some of the paint in order to check the joins properly?
 
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HAWK21M
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 4:12 pm

Quoting Rendezvous (Reply 4):
Do you have to remove some of the paint in order to check the joins properly

Ultrasonic testers work fine.
I Feel the lines are the ends of a Structural repair carried out.Anyone with Different angle views. Or Worn Paint.

regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
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NZ1
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 7:07 pm

It is an area over the lap joints that has been paintstripped for inspection purposes. Our aircraft have had the same thing done recently to inspect for corrosion over a similar area, though at the front of the aircraft.

NZ1
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HAWK21M
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RE: QF 734 - Strange Marks?

Mon Sep 12, 2005 10:34 pm

Quoting NZ1 (Reply 6):
It is an area over the lap joints that has been paintstripped for inspection purposes. Our aircraft have had the same thing done recently to inspect for corrosion over a similar area, though at the front of the aircraft.

Any Details on the Inspection.Why wasn't it recoated after check.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
jumbojim747
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RE: QF 734 - Strange Marks?

Tue Sep 13, 2005 6:54 am

Quoting HAWK21M (Reply 7):
Any Details on the Inspection.Why wasn't it recoated after check

that's what i was going to ask.
Having bare metal is not a good idea as i know it.
Cheers
On a wing and a prayer
 
RedDragon
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RE: QF 734 - Strange Marks?

Tue Sep 13, 2005 6:59 am

Presumably in the case of my grounded 732s then, the sequence went: paint stripped, damage found, aircraft in doghouse.

I'd wondered where these mythical lap joints were...

Rich
 
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HAWK21M
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RE: QF 734 - Strange Marks?

Tue Sep 13, 2005 9:07 pm

This is one Interesting Topic.Im curious & Eager to know the Answer.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
miamiair
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RE: QF 734 - Strange Marks?

Tue Sep 13, 2005 10:08 pm

I doubt that they are bare. It looks like some sort of lap seam inspection for S-10L & S-20L. Curious why they left out S-14L. Standard parctice is to re-seal the lap seam if the sealant was removed, and at the very least, prime it with BMS-10-11 primer (which is green).
Molon Labe - Proud member of SMASH
 
jumbojim747
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RE: QF 734 - Strange Marks?

Wed Sep 14, 2005 12:18 pm

Quoting HAWK21M (Reply 10):
This is one Interesting Topic.Im curious & Eager to know the Answer.

So am i as I've always been told that the paint helps in the strengthening of the aircraft because the metal is so thin.

Quoting Miamiair (Reply 11):
and at the very least, prime it with BMS-10-11 primer (which is green).

I was wondering the same thing why wasn't it primered.
Cheers
On a wing and a prayer
 
RedDragon
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RE: QF 734 - Strange Marks?

Thu Sep 15, 2005 3:34 am

Quoting JumboJim747 (Reply 12):
So am i as I've always been told that the paint helps in the strengthening of the aircraft because the metal is so thin.

Er, try strengthening something with paint. And then look at an AA aircraft.

 Wink
 
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NZ1
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RE: QF 734 - Strange Marks?

Sun Sep 18, 2005 2:36 pm

Quoting HAWK21M (Reply 7):
Any Details on the Inspection.Why wasn't it recoated after check.

I must admit it is strange, as our aircraft had 3M adhesive film applied over the bare patches until their next inspection, to protect the bare metal surface.

While I can't speak for QF, the inspection on our aircraft was due to knife marks, and corrosion from previous decal applications. The operator had obvious;y used a stanley knife to trim them, and damged the skin at the same time.

NZ1
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HAWK21M
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RE: QF 734 - Strange Marks?

Sun Sep 18, 2005 10:27 pm

Quoting NZ1 (Reply 14):

This looks much more different.Its def a Structural Repair related.Maybe I'll take a pic to Work & try to get some Answers.This is one tough doubt.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
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HAWK21M
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RE: QF 734 - Strange Marks?

Wed Sep 21, 2005 5:10 pm

Quoting HAWK21M (Reply 15):
Maybe I'll take a pic to Work & try to get some Answers.

Not much luck.
Most ppl opinion is if its a Repair.Why was it not Finished totally.This is one Tricky Post.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
MD11Engineer
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RE: QF 734 - Strange Marks?

Wed Sep 21, 2005 5:43 pm

To me it looks as if the joints have been sealed but not yet painted over.

Jan
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HAWK21M
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RE: QF 734 - Strange Marks?

Wed Sep 21, 2005 6:16 pm

Quoting MD11Engineer (Reply 17):
To me it looks as if the joints have been sealed but not yet painted over

Exactly.But is that Advisable.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
miamiair
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RE: QF 734 - Strange Marks?

Wed Sep 21, 2005 8:22 pm

Quoting HAWK21M (Reply 18):
Exactly.But is that Advisable.

Is what advisable? Sealing and not painting? IMO, sealing is the bare minimum. Some primer would be nice.

ps, try using question marks (?).
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HAWK21M
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RE: QF 734 - Strange Marks?

Wed Sep 21, 2005 9:24 pm

Quoting Miamiair (Reply 19):
Is what advisable? Sealing and not painting

Exactly to reduce corrosion.

Quoting Miamiair (Reply 19):
ps, try using question marks (?).

Not until 31st Dec 2006.Its a long story  Smile
regds
MEL
I may not win often, but I damn well never lose!!! ;)

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