The NRC is modernizing nrc.gov with an updated design and improved navigation to enhance usability. We are committed to a smooth transition and will work to minimize any disruption. The site may be briefly unavailable at times during launch. Thank you for your patience.
Spotlight
Preliminary Notification (PN) Reports for 2016
| January | February | March | July | August | September |
This page includes links to files in non-HTML format. See Plugins, Viewers, and Other Tools for more information.
| September | ||
|---|---|---|
| PNO-IV-16-003 | 09/29/2016 | Entergy Operations, Inc.: Grand Gulf Extended Plant Shutdown to Address Operations Performance |
| PNO-III-16-004A | 09/23/2016 | FirstEnergy Nuclear Operating Co. – (Update) Unplanned Shutdown Of Davis-Besse Nuclear Power Station For Greater Than 72 Hours |
| PNO-III-16-004 | 09/13/2016 | FirstEnergy Nuclear Operating Co.: Unplanned Shutdown of Davis Besse Nuclear Power Station For Greater Than 72 Hours |
| August | ||
| PNO-IV-16-002 | 09/02/2016 | Wolf Creek Nuclear Operating Corp.: Wolf Creek Plant Technical Specification Shutdown due to Reactor Coolant System Leakage |
| July | ||
| PNO-III-16-003 | 07/12/2016 | Indiana Michigan Power Company: D.C. Cook Unit 2 Manual Trip Resulting in a Shutdown for Greater than 72 Hours |
| March | ||
| PNO-II-16-001 | 03/08/2016 | Duke Energy: Oconee Unit 1 – Shutdown Greater Than 48 Hours Due To Fire/Explosion In the Main Transformer |
| February | ||
| PNO-III-16-002 | 02/18/2016 | FirstEnergy Nuclear Operating Company: Perry Nuclear Power Plant – Unplanned Shutdown Greater Than 72 Hours Due to Spurious Opening of Safety Relief Valves and Subsequent Plant Start |
| PNO-III-16-001A | 02/05/2016 | FirstEnergy Nuclear Operating Company: Perry Nuclear Power Plant – Unplanned Shutdown Greater Than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits and Subsequent Plant Restart |
| January | ||
| PNO-III-16-001 | 01/29/2016 | FirstEnergy Nuclear Operating Company: Perry Nuclear Power Plant – Unplanned Shutdown Greater Than 72 Hours Due to Reactor Coolant System Leakage Exceeding Technical Specification Limits |
Page Last Reviewed/Updated Tuesday, September 08, 2026
Page Last Reviewed/Updated Tuesday, September 08, 2026