ZUG, Switzerland, Dec. 27, 2012 /PRNewswire/ -- Noble Corporation (NYSE: NE ) today announced that it is working cooperatively and diligently to rectify deficiencies and maintenance issues raised by the U.S. Coast Guard during a recent inspection of the Company's drillship, the Noble Discoverer. The inspection followed a successful drilling season in offshore Alaska. The Coast Guard has identified several components and systems aboard the Company's drillship for attention, including the ship's propulsion and safety management systems. In connection with Noble's internal review independent of the Coast Guard inspection, Noble reported certain other potential regulatory non-compliance issues that it discovered relating to its operations, including possible unauthorized collected water discharges outside the period of drilling operations.