ELECTRIC OVER HYDRAULIC CONTROLLER FAILURE ON A ARIAL FIRE TRUCK PLATFORM.WHEN YOU STEP ON THE DEAD MAN SWITCH THE BUCKET MOVED UNEXPECTEDLY TO THE LEFT. THIS COULD HAVE CONTRIBUTED TO DEATH OR INJURY DURING A WORKING FIRE OR IF YOU WHERE IN THE VICINITY OF HIGH VOLTAGE WIRES.POSSIBLE ELECTROCUTION OF FIREFIGHTERS.THE PART # OF …
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ELECTRIC OVER HYDRAULIC CONTROLLER FAILURE ON A ARIAL FIRE TRUCK PLATFORM.WHEN YOU STEP ON THE DEAD MAN SWITCH THE BUCKET MOVED UNEXPECTEDLY TO THE LEFT. THIS COULD HAVE CONTRIBUTED TO DEATH OR INJURY DURING A WORKING FIRE OR IF YOU WHERE IN THE VICINITY OF HIGH VOLTAGE WIRES.POSSIBLE ELECTROCUTION OF FIREFIGHTERS.THE PART # OF THE CONTROLLER IS PARKER 20011366 AND IQAN-LSL-EO-DN-//-S.THIS CONTROLLER MOVES THE LADDER UP AND DOWN,IN AND OUT OR LEFT AND RIGHT..THIS IS THE SECOND FAILURE OF THIS CONTROLLER IN THE PAST 3 MONTHS ON 2 SEPARATE TRUCKS. IT IS THE SAME PART NUMBER ON BOTH TRUCKS AND SERVES AS THE SAME FUNCTION. *TR
NHTSA ODI #10418106
Official recalls
0
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NHTSA investigations
1
PE11027 · Fire Truck Aerial Ladder Failure
Opened Aug 16, 2011 · Closed Feb 17, 2012
Status: closed (inferred from source dates) · Equipment
On August 16th 2011 the Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE11-027) on Kovatch Mobile Equipment (KME) Aerial Cat 2003 - 2011 Fire trucks concerning an alleged failure related to a fire truck's aerial ladder.The electronic-over-hydraulic controller that is used to move the aerial bucket fails, causing an unintended movement of the aerial device on certain KME aerial ladder/platform trucks.This unintended movement of the aerial ladder bucket constitutes an unreasonable risk to safety as the movement may occur in an unintended direction possibly near electrical power lines, structures, or a fire.The manufacturer will conduct a safety recall.The remedy KME will implement updates the software for the controller, including a triple redundancy system.One of the systems disables all platform aerial movement controls immediately upon actuation of the dead man's switch at the turntable.This PE is closed with a Safety Recall (12V-027).The ODI reports cited above can be reviewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification (ODI) number: 10418106
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