Carl Vinson Continues to set Shipyard Milestones


Story Number: NNS081115-10Release Date: 11/15/2008 4:48:00 PM
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By Mass Communication Specialist 3rd Class Kristan Robertson, USS Carl Vinson Public Affairs

NEWPORT NEWS, Va. (NNS) -- The USS Carl Vinson (CVN 70) Engineering Department, R-1 Division, completed an inspection and certification process for the ship's collection, holding, and transfer (CHT) system this October, at Northrop Grumman Shipbuilding in Newport News, Va.

The certification of the aircraft carrier's CHT systems came after months of preparations by a team of shipyard workers from Northrop Grumman Shipbuilding and Sailors from USS Carl Vinson.

Sailors involved in the process of bringing the ship's CHT system back on line said it takes hard work and continued focus to accomplish such a large shipyard milestone.

"To prepare for inspection, a lot of work had to be put in by the crew," said Hull Maintenance Technician 2nd Class (SW) Allan Wetter. "We were working 12-hour days, training personnel, conducting tons of preventive maintenance, checking for leaks and just doing what was necessary to ensure the whole system was running smoothly."

There are a total of five CHT tanks on board the aircraft carrier that collect waste water from shipboard spaces such as heads, galleys and laundry facilities. Without a properly functioning CHT system, the ship could not operate for sustained periods at sea.

"Given the age of the system and the scope of work performed, too many things could have gone wrong if both the shipyard and ship's force didn't make every effort to ensure the system was in optimal condition for operation," said Chief Warrant Officer Michael Meyer, who led the effort for R-1 division. "The entire CHT system restoration was a tremendous undertaking for everybody involved."

The process of bringing the ship's CHT systems online was a tedious one.

After thousands of feet of piping, more than 200 replaced valves, and a complete overhaul, Vinson Sailors and shipyard employees spent countless hours coordinating and inspecting their work to ensure the system would pass certification.

"In the end, it was the absolute unselfish dedication to teamwork by both Northrop Grumman and ship's force that made this certification a huge success," said Meyer. "Everybody did their part to make sure we got the job done right."

USS Carl Vinson is currently undergoing its scheduled refueling complex overhaul (RCOH) at Northrop Grumman Newport News shipyard. The RCOH is an extensive yard period that all Nimitz-class aircraft carriers go through near the mid-point of their 50-year life cycle.

During RCOH Carl Vinson's nuclear fuel will be replenished and the ship's services and infrastructure will be upgraded to make her the most state-of-the-art aircraft carrier in the fleet and prepare for another 25 years or more of service.

For more news from USS Carl Vinson, visit www.navy.mil/local/cvn70/.

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