A340-600 – ACCIDENT IN PRODUCTION

THIS AIT IS AN UPDATE OF PREVIOUS AIT N?1 CONCERNING THE A340-600pict0002.jpg

 

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).


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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

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