Sponsor Message:
Civil Aviation Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
AA N14053 Vertical Stab Suffers Previous Damage  
User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Posted (12 years 9 months 1 week 5 days 22 hours ago) and read 2272 times:

The V stab on N14053 sufferd damage thought to be caused by turbulence back in 1988.

An inspection of the V stab uncovered delamination of the composite structure just above the attatchment bolts that hold the V stab to the airframe.

The delamination was repaired using doublers. But no increassed inspections were deamed necessary for the repair beyond the normal schedualed maintenance.

Makes you wonder.....

JET

19 replies: All unread, jump to last
 
User currently offlineBoeingfan From United States of America, joined Aug 2001, 385 posts, RR: 1
Reply 1, posted (12 years 9 months 1 week 5 days 22 hours ago) and read 2185 times:

Jetpilot,

What is the source of the new info? Delamination, that is a new theory.

Thanks,

Bf.


User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 2, posted (12 years 9 months 1 week 5 days 22 hours ago) and read 2171 times:

Got this info from a friend who is an AA mechanic at JFK.

JET


User currently offlineVoodoo From Niue, joined Mar 2001, 2074 posts, RR: 0
Reply 3, posted (12 years 9 months 1 week 5 days 22 hours ago) and read 2136 times:

Well if this is true it goes to the top of the list of possibilities IMO......


` Yeaah! Baade 152! Trabi of the Sky! '
User currently offlineFishmeal From United States of America, joined Jun 2001, 66 posts, RR: 0
Reply 4, posted (12 years 9 months 1 week 5 days 22 hours ago) and read 2121 times:

The website ' www.aviatonnow.com ' has that delamination information in it's lead article today.

User currently offlineFishmeal From United States of America, joined Jun 2001, 66 posts, RR: 0
Reply 5, posted (12 years 9 months 1 week 5 days 22 hours ago) and read 2107 times:

Correct that: it's 'www.aviationnow.com' that has the article with the delamination details included.

User currently offlineRayChuang From United States of America, joined Jun 2000, 8002 posts, RR: 5
Reply 6, posted (12 years 9 months 1 week 5 days 19 hours ago) and read 2042 times:

I'll say this though: this will guarantee that airlines will do much more serious close inspections of composite structural parts of the plane.

The aging of composite parts has been of some concern to me, since there isn't the long track record of parts aging like you have you metal structural components.


User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 7, posted (12 years 9 months 1 week 5 days 19 hours ago) and read 2048 times:

Looks like the info was accurate...for all I know my buddy might have gotten it from a news article....

This isnt an aging of composites issue...if the repair would be at fault then it would be a repair issue.

Tails arent falling off unrepaired A300's.

JET


User currently offlineD L X From United States of America, joined May 1999, 11268 posts, RR: 52
Reply 8, posted (12 years 9 months 1 week 5 days 18 hours ago) and read 2026 times:

Hmmm... the entire 380 wing is supposedly going to be made from this stuff...


Send me a PM at http://www.airliners.net/aviation-forums/sendmessage.main?from_username=NULL
User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 9, posted (12 years 9 months 1 week 5 days 18 hours ago) and read 2033 times:

Its good stuff......this may be a faulty repair

JET


User currently offlineRayChuang From United States of America, joined Jun 2000, 8002 posts, RR: 5
Reply 10, posted (12 years 9 months 1 week 5 days 18 hours ago) and read 2014 times:

D L X,

Wrongo. The A380's wing will be mostly metal. I believe the composite structures will be the tail surfaces (vertical tail and horizontal stabilizers).


User currently offlineD L X From United States of America, joined May 1999, 11268 posts, RR: 52
Reply 11, posted (12 years 9 months 1 week 5 days 18 hours ago) and read 1994 times:

JET, I know it's good stuff, but repairs will be inevitable. Maybe you can shed some light on this (you fly A300s, right?) but, you can't really repair composites, I thought. You have to replace them, or they'll never be as strong as they were.


Ray, how sure on you about this? I clearly recall reading that it would be a mostly composite, one-piece wing. And that some airlines (and forumites) were complaing about it. Is this a change?



Send me a PM at http://www.airliners.net/aviation-forums/sendmessage.main?from_username=NULL
User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 12, posted (12 years 9 months 1 week 5 days 17 hours ago) and read 1972 times:

I say the bolts that held the vertical stabilizer to the aircraft were badly corroded and broke off from the heavy turbulence caused by that JAL 747 that took off before it.

User currently offlineVC-10 From United Kingdom, joined Oct 1999, 3700 posts, RR: 34
Reply 13, posted (12 years 9 months 1 week 5 days 17 hours ago) and read 1964 times:
Support Airliners.net - become a First Class Member!

My understanding is the bolts are still attached to the aft fuselage

User currently offlineTEDSKI From , joined Dec 1969, posts, RR:
Reply 14, posted (12 years 9 months 1 week 5 days 17 hours ago) and read 1964 times:

If there is a problem with the vertical stabilizer on the A300 which will require worldwide inspections, they will have to include the A310, A330, & A340 which have identical tail sections.

User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 15, posted (12 years 9 months 1 week 5 days 15 hours ago) and read 1949 times:

TEDSKI....

This is not a manufacturing defect....but a repair that was made to a damaged V stab....therefore this situation is unique to N14503.

JET


User currently offlineM27 From United States of America, joined Oct 2004, 314 posts, RR: 0
Reply 16, posted (12 years 9 months 1 week 5 days 15 hours ago) and read 1925 times:

It would seem that if the stablizer suffered damage in 1988 as the orginal post said, it would be known if it was from turbulence and not just thought to be. Also, why did damage occur the first time? Was the turbulence so great that it caused the damage, or was there an orginal manufacturing defect? If it was just due to turbulence, then you must be saying that turbulence encountered the day of the crash was much les than the orginal encounter, and the repair made it not capable of withstanding even this amount, otherwise it would make no difference whether it was repaired or a brand new one was installed.

You said it suffered delamination then, so it may have suffered delamination this time. Jetpilot your statement that it was a repair falt (though well it may be) is just speculation at this point. I don't know the cause yet, and neither do you.


User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 29
Reply 17, posted (12 years 9 months 1 week 5 days 13 hours ago) and read 1896 times:

M27...Im just reporting the news as I get it....in no way shape or form did I make any such statement that this was the cause of the accident......

I said it was just something to THINK ABOUT. Read the post slowly next time.

You need to read "all" my posts in order to see the context of my last post.

Anyhow latest word I have is that the V stab broke off above the repair point..... I've got pics of the v stab attatchment points after the crash but dont know how to post them...sorry.

JET


User currently offlineChicago From United States of America, joined Jul 2001, 27 posts, RR: 0
Reply 18, posted (12 years 9 months 1 week 5 days 13 hours ago) and read 1884 times:

These pix from the NTSB site tell it all....

http://www.ntsb.gov/Events/2001/AA587/tailcomp.htm

Compare with this schematic from the Wash. Post to put the pictures in perspective....

http://www.washingtonpost.com/wp-srv/nation/graphics/crash_111501.html

It's clear that there was a massive failure to the composite mounting points on the vert. stabilizer.


User currently offlineM27 From United States of America, joined Oct 2004, 314 posts, RR: 0
Reply 19, posted (12 years 9 months 1 week 5 days 12 hours ago) and read 1878 times:

Jetpilot:

I believe I understand what you are saying. That this one aircraft is unique, and if a failure results due to this repair, then of course it would not in anyway relate to any other line no. I will admit that as I read through the posts, that I lost some perspective to whom, and to what you were replying to exactly, and for that I apologize.

I will take the statement that you made that tails aren't
falling off unrepaired A300s' as a general statement and not that you meant it to mean that the repair must be the reason beyond doubt that this tragic event happened. As I said, it may well be a repair falt, but I believe that can't be said for sure at this time, and that is what I thought you were promoting.

Regards


Top Of Page
Forum Index

This topic is archived and can not be replied to any more.

Printer friendly format

Similar topics:More similar topics...
Megatop Suffers US$1M Damage By Truck Collision posted Thu Jul 10 2003 19:33:32 by Singapore_Air
Damage From April AA 763 Birdstrikes posted Wed Nov 28 2001 22:57:19 by 777236ER
The Point Of AA Taking Over TWA? posted Wed Feb 28 2007 04:46:28 by Noise
AA JFK-LAS posted Tue Feb 27 2007 17:42:05 by JFK69
AA Eagle To Cut BOS-EWR And ORD-IAD posted Mon Feb 26 2007 16:37:13 by AJMIA
AA's New Transcon Seats posted Sat Feb 24 2007 03:11:25 by Freddyb430
AA May Need Funding. posted Fri Feb 23 2007 20:15:38 by Xbraniffone
Update On Severly Injured AA Empoyee In DFW posted Fri Feb 23 2007 18:21:29 by AA787823
"Pulsing" At AA posted Fri Feb 23 2007 17:59:30 by 747hogg
AA 1354 Emergency Landing Ksdf posted Fri Feb 23 2007 07:13:26 by Xaphan