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A manufacturing defect was discovered in RA manufacturing defect was discovered in Rotork's 30NA1 motor cover casting part number 4748. When stroking the valve, the motor cover supports the loads developed from the stator torque and the rotor thrust reactions. The failure occurred at the rotor end bearing support. Investigation has shown that the casting was not manufactured to the drawing specification.</br>The manufacturer is searching their spares database to determine where it has supplied the motors and will inform the utilities once this list is complete. the utilities once this list is complete.  +
04:00:00, 7 April 2011  +
46,737  +
15:22:00, 7 April 2011  +
04:00:00, 7 April 2011  +
A manufacturing defect was discovered in RA manufacturing defect was discovered in Rotork's 30NA1 motor cover casting part number 4748. When stroking the valve, the motor cover supports the loads developed from the stator torque and the rotor thrust reactions. The failure occurred at the rotor end bearing support. Investigation has shown that the casting was not manufactured to the drawing specification.</br>The manufacturer is searching their spares database to determine where it has supplied the motors and will inform the utilities once this list is complete. the utilities once this list is complete.  +
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00:00:00, 7 April 2011  +
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02:07:30, 2 March 2018  +
15:22:00, 7 April 2011  +
0.474 d (11.37 hours, 0.0677 weeks, 0.0156 months)  +
04:00:00, 7 April 2011  +
Defect in Rotork'S 30Na1 Motor Cover Casting  +
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