Bericht in N-TV/Probleme bei A 300/310 Frachtern in den USA?

[FM6006]

Habe eben in N-TV einen Kurzbericht über Probleme bei den A300/A310

Frachtern von Fedex gesehen.

Es gibt wohl ein Problem mit der Heckflosse.

Die ganzen Flieger sollen innerhalb der nächsten 6 Monate untersucht werden.

Habe mal gegooglet aber noch nichts gefunden.

Weiss jemand näheres?

[karstenf]

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NTSB PRESS RELEASE / SAFETY RECOMMENDATION

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National Transportation Safety Board

Washington, DC 20594

 

FOR IMMEDIATE RELEASE: March 24, 2006

SB-06-16

 

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NTSB URGES INSPECTIONS OF CERTAIN AIRBUS A300 RUDDERS (Safety Recommendation A-06-27 and -28)

 

 

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Washington, D.C. - The National Transportation Safety Board

today urged the Federal Aviation Administration to order

inspections of the inner skin of the composite rudder

surfaces of certain Airbus A-300 series airplanes.

 

The safety recommendations (one of which is classified

as urgent by the Safety Board) address a safety issue

identified during the investigation of damage found during

an inspection of a rudder from a Federal Express A300-600

airplane. The Board noted that this incident might have

applicability to a more serious rudder separation that

occurred last year.

 

"The Board believes that this urgent recommendation,

if acted upon quickly, will go a long way to prevent a

catastrophic failure of the rudder," NTSB Acting Chairman

Mark V. Rosenker said.

 

On March 6, 2005, an Airbus A310-300, operated by Air

Transat as flight 961, experienced an in-flight separation

of its rudder shortly after departure from Juan G. Gomez

International Airport in Varadero, Cuba. The flight

returned to Varadero, where it landed uneventfully. Upon

landing, the crew discovered that most of the airplane's

rudder had separated in flight with only the bottom closing

rib and the spar between the rib and the hydraulic actuators

remaining.

 

Following the Air Transat accident, which is being

investigated by Canada with the assistance of the NTSB,

Airbus issued a mandatory All Operator Telex (AOT) A300-

55A6035 specifying a one-time rudder inspection for all A-

300 series airplanes equipped with premodification 8827 or

40904 rudders. On March 28, 2005, the FAA issued

Airworthiness Directive (AD) 2005-07, requiring operators to

perform the inspections specified in the AOT. American

Airlines and Federal Express (the only U.S. operators of

these airplanes) complied with the AD.

 

On November 27, 2005, the rudder on an Airbus A300-600

airplane operated by Federal Express was damaged during

routine maintenance. To assess the extent of the damage,

the rudder was shipped to the manufacturer's facility and

examined. In addition to the damage that occurred during

maintenance, the examination found a substantial area of

disbonding between the inner skin of the composite rudder

surface and the honeycomb core, which is located between two

composite skins.

 

Further examination of the disbonded area revealed

traces of hydraulic fluid. Hydraulic fluid contamination

between the honeycomb skin and the fiberglass composite skin

can lead to progressive disbonding, which compromises the

strength of the rudder. Tests on the damaged rudder also

revealed that disbonding damage could spread during flight.

 

The investigation found that the areas specified in

the AOT did not include the areas in which the disbonds were

found on the incident rudder. Further, it was determined

that tap tests on the external surfaces of the rudder likely

would not have disclosed the disbonding of an internal

surface.

 

On March 2, 2006 Airbus issued AOTs notifying

operators of applicable A300 series airplanes that large

disbonds between the rudder's inner skin and the honeycomb

core could go undetected, and providing guidance for

inspecting the rudders. The Safety Board is recommending a

more stringent compliance time than specified in the AOT and

also requesting that FAA make the inspections mandatory.

 

More recent examinations have disclosed that hydraulic

fluid can exist along the edges of the rudder's inner

surface along with an accompanying area of substantial

disbonding and that the inspection specified in the AOTs

cannot detect the presence of the hydraulic fluid or the

disbonding along the edges.

 

Therefore, the Safety Board is recommending that the

FAA require that all operators of Airbus A-300 series

airplanes immediately (possibly before further flight)

comply with four Airbus All Operators Telexes dated March 2,

2006. Any disbonding to the rudder skins that occurs in the

presence of hydraulic fluid contamination should be repaired

or the rudder should be replaced as soon as possible, well

before the 2, 500 flights specified in the AOTs. (A-06-27)

This is an urgent recommendation.

 

The NTSB further recommended that the FAA establish a

repetitive inspection interval for Airbus premodification

8827 rudders until a terminating action is developed. The

interval should be well below 2,500 flights. (A-06-28)

 

It is estimated that these recommendations concern

about 400 aircraft in Airbus's worldwide fleet.

[Boeing 737-86J]

Das Verhältnis Airbus A300/A310 - USA ist auch ne Besondere. Mal in Ernst, bei dem AA-Bus, der in NYC vom Himmel gekommen ist, solls doch auch Klagen gegen Airbus gegeben haben, was ist den aus denen geworden? Da soll's doch geheist haben, dass der A300 von den Rudern her ne Fehlkonstrucktion ist...

 

Und was ist mit den UPS-Bussen? Die haben ja auch ne N-Reg nach CH-Aviation (Übrigens ne tolle Seite *großes Lob*).

[Mamluk]

..."On November 27, 2005, the rudder on an Airbus A300-600

airplane operated by Federal Express was damaged during

routine maintenance. To assess the extent of the damage,

the rudder was shipped to the manufacturer's facility and

examined. In addition to the damage that occurred during

maintenance, the examination found a substantial area of

disbonding between the inner skin of the composite rudder

surface and the honeycomb core, which is located between two

composite skins. ".....

 

das könnte doch auch potentielle Probleme mit dem 787 geben,da die Material- schichten ähnlich angelegt sind...

[Boeing 737-86J]

Hab gerade auch den Bericht gesehen. Die sollten auch mal besser sich informieren.

 

[...] Betroffen sind alle Airbuse des Typs 300 bis 600. [...]

 

Dann zeigen die auch noch ne 346...

[Charliebravo]

bei dem AA-Bus, der in NYC vom Himmel gekommen ist, solls doch auch Klagen gegen Airbus gegeben haben, was ist den aus denen geworden? Da soll's doch geheist haben, dass der A300 von den Rudern her ne Fehlkonstrucktion ist... .

Lies Dir mal den Untersuchungsbericht der FAA durch. Extrem stark vereinfacht:Der PIC hat die Maschine zum Absturz gebracht, da er falsch ausgebildet war. Er wusste nicht, dass die Steuerflächen eine Passagiermaschine anders zu Bedienen sind als ein Kampfjet. Das Ruder funktionierte besser als erwartet und vorgeschreiben.

Und was ist mit den UPS-Bussen?

Nun, die dürften ja bei "all operators" in der FAA-Anordnung eingeschlossen sein, sofern die ein Seitenruder des betroffenen Typs haben.

 

Das Neue an der Nachricht ist ja nicht die Untersuchung an sich, die hat Airbus ja länger empfohlen. Neu ist nur die Vorgabe der FAA dazu.

[Guenni]

@Boeing 737-86J

Zu dem AA587 Crash in New York gibt es einen sehr interessanten Aufsatz von Peter Ladkin:

 

http://www.rvs.uni-bielefeld.de/publicatio...rashOfAA587.pdf

 

Guenni

[Boeing 737-86J]

Danke!