Actions to Address Nuclear Plant Systems, Components, and Programs with Poor Ratings

In completing project number 2009-12883, Survey of TVA's Process for Determining Condition of Assets, with a report dated September 20, 2012, the OIG learned that asset condition assessments performed by the Nuclear Power Group (NPG) had determined some generation assets were in poor condition. As a follow up to our prior work, we performed a review to determine whether TVA was taking action to address NPG systems, components, and programs with poor ratings. Under NPG's health report process, actions were required when ratings were designated red or yellow. Red ratings are defined as requiring excessive monitoring/resources to maintain, and yellow ratings indicate a need for additional attention.We found 333 systems, programs, and components within NPG had been designated red or yellow. We randomly sampled 25 for detailed review. Our analysis showed at least two actions were taken to address 24 of the 25 samples. For 1 component, only one action was completed and other actions were awaiting approval. These actions resulted in an improvement in condition and a change in 14 cases to a white or green rating, while 11 had ratings that remained red or yellow. It is important to note that of the remaining 11 with red and yellow ratings, 2 changed from red to yellow, and 9 remained the same. In addition, 5 of the 9 that remained red or yellow had some asset condition improvement but not sufficient improvement to change the rating.