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Drawworks EDS Hoisting Issue Alert by kaxxar is a document available to read on EtoBox.

This Product Bulletin informs customers about a risk associated with Siemens PLC controlled AHD/AHDD Drawworks, where the system may fail to detect string cuts during an Emergency Disconnect Sequence (EDS), preventing hoisting. A software update and test procedure are required to resolve this issue. Customers should contact their local National Oilwell Varco Service Center for assistance and note that costs may apply if the equipment is out of warranty.

Author

kaxxar

Language

EN