ML16313A169

Assessment Follow-Up Letter for Grand Gulf Nuclear Station

ML16313A169
Person / Time
Site:	Grand Gulf
Issue date:	11/08/2016
From:	Troy Pruett NRC/RGN-IV/DRP
To:	Fallacara V Entergy Operations
Greg Warnick
References
Download: ML16313A169 (4)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 1600 E LAMAR BLVD ARLINGTON, TX 76011-4511 November 8, 2016 Mr. Vin Fallacara Acting Site Vice President Operations Entergy Operations, Inc.

Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150

SUBJECT:

ASSESSMENT FOLLOW-UP LETTER FOR GRAND GULF NUCLEAR STATION

Dear Mr. Fallacara:

As a result of our quarterly review of plant performance, which was completed on November 4, 2016, the NRC updated its assessment of Grand Gulf Nuclear Station. The NRCs evaluation consisted of a review of performance indicators and inspection results. This letter informs you of the NRCs assessment and its plans for a future inspection at your facility. This letter supplements, but does not supersede, the mid-cycle assessment letter issued on August 31, 2016.

The NRCs review of Grand Gulf Nuclear Station identified that the Unplanned Scrams Per 7,000 Critical Hours performance indicator has crossed the Green-to-White threshold. The performance issues included in this performance indicator were associated with a reactor scram that occurred in the first quarter of 2016 due to a turbine trip, a reactor scram that occurred in the second quarter of 2016 due to power oscillations, and a reactor scram that occurred in the second quarter of 2016 due to a closure of turbine control valves.

The NRC determined the performance at Grand Gulf Nuclear Station to be in the Regulatory Response Column of the Reactor Oversight Process Action Matrix beginning the third quarter of 2016. Therefore, the NRC plans to conduct a supplemental inspection in accordance with Inspection Procedure 95001, Supplemental Inspection Response to Action Matrix Column 2 Inputs. The objectives of the supplemental inspection are: (1) to assure that the root causes and contributing causes of significant performance issues are understood, (2) to independently assess and assure that the extent of condition and extent of cause of significant performance issues are identified, (3) to assure that corrective actions taken to address and preclude repetition of significant performance issues are prompt and effective, and (4) to assure that corrective plans direct prompt actions to effectively address and preclude repetition of significant performance issues. This inspection will be scheduled after you notify the NRC of your readiness.

V. Fallacara In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRCs Rules of Practice, a copy of this letter will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of NRC's Agencywide Documents Access and Management System (ADAMS). ADAMS is accessible from the NRC Web site at http://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room).

Please contact Greg Warnick at 817-200-1144 with any questions you have regarding this letter.

Sincerely,

/RA/

Troy Pruett, Director Division of Reactor Projects Docket No. 50-416 License No. NPF-29

ML16313A169 SUNSI Review ADAMS Publicly Available Non-Sensitive Keyword:

By: CHY Yes No Non-Publicly Available Sensitive NRC-002 OFFICE DRP:C/SPE DRP:PBC DRP: D NAME CYoung GWarnick TPruett SIGNATURE /RA/ /RA/ /RA/

DATE 11/1/16 11/2/16 11/2/16 Letter to Mr. Vin Fallacara from Troy Pruett dated November 8, 2016

SUBJECT:

ASSESSMENT FOLLOW-UP LETTER FOR GRAND GULF NUCLEAR STATION DISTRIBUTION:

Regional Administrator (Kriss.Kennedy@nrc.gov)

Deputy Regional Administrator (Scott.Morris@nrc.gov)

DRP Director (Troy.Pruett@nrc.gov)

DRP Deputy Director (Ryan.Lantz@nrc.gov)

DRS Director (Anton.Vegel@nrc.gov)

DRS Deputy Director (Jeff.Clark@nrc.gov)

Senior Resident Inspector (Matt.Young@nrc.gov)

Resident Inspector (Neil.Day@nrc.gov)

Administrative Assistant (Yvonne.Dubay@nrc.gov)

Branch Chief, DRP/C (Greg.Warnick@nrc.gov)

Senior Project Engineer, DRP/C (Cale.Young@nrc.gov)

Project Engineer (Michael.Stafford@nrc.gov)

Project Engineer (Lindsay.Brandt@nrc.gov)

Public Affairs Officer (Victor.Dricks@nrc.gov)

Project Manager (James.Kim@nrc.gov)

Team Leader, DRS/IPAT (Thomas.Hipschman@nrc.gov)

RITS Coordinator (Marisa.Herrera@nrc.gov)

ACES (R4Enforcement.Resource@nrc.gov)

Regional Counsel (Karla.Fuller@nrc.gov)

Technical Support Assistant (Loretta.Williams@nrc.gov)

Congressional Affairs Officer (Jenny.Weil@nrc.gov)

RIV Congressional Affairs Officer (Angel.Moreno@nrc.gov)

RIV/ETA: OEDO (Jeremy.Bowen@nrc.gov)

RIV RSLO (Bill.Maier@nrc.gov)

Director, DIRS, NRR (Chris.Miller@nrc.gov)

Deputy Director, DIRS, NRR (Shana.Helton@nrc.gov)

Director, DORL, NRR (Anne.Boland@nrc.gov)

Deputy Director, DORL, NRR (George.Wilson@nrc.gov)

Director, NSIR (Brian.Holian@nrc.gov)

Director, DPR, NSIR (Marissa.Bailey@nrc.gov)

DRP Branch Chiefs (R4DRPBC@nrc.gov)

DRS Branch Chiefs (R4DRSBC@nrc.gov)

ROPreports.Resource@nrc.gov ROPassessment.Resource@nrc.gov