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Dont run up all 4 engines at one time

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Iflewjetz

Well-known member
Joined
Jan 11, 2003
Posts
179
Airbus confirms an A340-600 was damaged and five people were injured in
a ground test accident at the company's Saint-Martin site in Toulouse.

The aircraft sustained damage when it somehow broke free of its parking
chocks during engine run-ups around 5 pm, local time. News photos taken
at the scene show the aircraft's nose rammed through a blast deflection
wall.

"At this time, recovery operations are still in progress and Airbus
staff is working closely with the emergency services and local
authorities at the site," an Airbus statement says.

Nine people were aboard the aircraft at the time of the accident. The
condition of the five injured person was not immediately available.

"Airbus expresses its sympathy to the families and friends of the
[injured] persons concerned," the company adds.

The aircraft, with tail number MSN 856, was due to be delivered to Abu
Dhabi-based Etihad Airways, "in the coming days," Airbus says.
Here is the report from AIRBUS. GOOD READING! FROM : AIRBUS FLIGHT SAFETY DEPARTMENT TOULOUSE

SUBJECT: A340-600 - MSN 856 - ACCIDENT IN PRODUCTION OUR REF.: F-WWCJ AIT 2 DATED 20th OF NOVEMBER 2007 PREVIOUS REF: F-WWCJ AIT 1 DATED 16th OF NOVEMBER 2007

THIS AIT IS AN UPDATE OF PREVIOUS AIT N°1 CONCERNING THE A340-600 PRODUCTION AIRCRAFT MSN 856 INVOLVED IN AN ACCIDENT IN AIRBUS PRODUCTION FACILITIES IN TOULOUSE ON THE 15TH NOVEMBER 2007 AT 17:00 LOCAL TIME.

THE FOLLOWING IS THE SEQUENCE OF EVENTS ACCORDING TO THE RECORDERS, WHICH HAS BEEN APPROVED FOR RELEASE BY THE FRENCH INVESTIGATION AUTHORITIES (BEA).

FOR ABOUT 3 MINUTES BEFORE THE END OF THE EVENT, ALL FOUR ENGINES EPR WAS BETWEEN 1.24 AND 1.26 WITH PARKING BRAKE ON AND WITHOUT GROUND CHOCKS.
THE ALTERNATE BRAKE PRESSURE WAS NORMAL. (WITH PARKING BRAKE ON, BRAKE PRESSURE IS SUPPLIED BY ALTERNATE).

13 SECONDS BEFORE THE IMPACT THE AIRCRAFT STARTED TO MOVE. WITHIN 1 OR 2 SECONDS THE CREW APPLIED BRAKE PEDAL INPUTS AND SELECTED PARKING BRAKE OFF. THESE ACTIONS LED THE NORMAL BRAKE PRESSURE TO INCREASE TO ITS NORMAL VALUE.

2 SECONDS PRIOR BEFORE THE IMPACT, ALL 4 ENGINE THRUST LEVERS WERE SELECTED TO IDLE.

THE AIRCRAFT IMPACTED THE CONTAINMENT WALL AT A GROUND SPEED OF 30 KTS.

THERE IS NO EVIDENCE OF ANY AIRCRAFT SYSTEM OR ENGINE MALFUNCTION.

AIRBUS REMINDS ALL OPERATORS TO STRICTLY ADHERE TO AMM PROCEDURES WHEN PERFORMING ENGINE GROUND RUNS

ENGINE GROUND RUNS AT HIGH POWER ARE NORMALLY CONDUCTED ON A SINGLE ENGINE WITH THE ENGINE IN THE SAME POSITION ON THE OPPOSITE WING OPERATED AT A LIMITED THRUST SETTING TO AVOID DAMAGE TO THE AIFRAME

WHEEL CHOCKS ARE TO BE INSTALLED THROUGHOUT THE TEST.




YANNICK MALINGE
VICE PRESIDENT FLIGHT SAFETY
AIRBUS
accident-A346Toulouse425x318.jpg
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Yea. I hope those guys are recovering ok. This happened a couple of weeks ago. Do a search on here and you will see more pictures. Good post on the recorder events.
 
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EPR of 1.25? That's kinda low isn't it?

Then again, my frame of reference is a 30 year old JT8D-17 hangin on the back of a 727 so I may be wrong.
 
lot larger surface area on high-bypass fan = more thrust for given eprs (versus turbojet)

so no, 1.25 is a lot more than you would think.
 
Another reason....

Another reason (as if I needed one) to never board any aircraft oprated by some Arab idiot!
 

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