IR 05000275/2020301

NRC Examination Report 05000275/2020301 and 05000323/2020301

ML20100F010
Person / Time
Site:	Diablo Canyon
Issue date:	04/09/2020
From:	Wemer G Operations Branch IV
To:	Welsch J Pacific Gas & Electric Co
Werner G
References
IR 2020301
Preceding documents:	ML19197A146 (16 July 2019)
Download: ML20100F010 (8)

Text

April 9, 2020

SUBJECT:

DIABLO CANYON POWER PLANT, UNITS 1 AND 2 - NRC EXAMINAT ION REPORT 05000275/2020301 AND 05000323/2020301

Dear Mr. Welsch:

On March 24, 2020, the U.S. Nuclear Regulatory Commission (NRC) completed an initial operator license examination at your Diablo Canyon Power Plant, Units 1 and 2. The enclosed report documents the examination results and licensing decisions. The preliminary examination results were discussed on February 27, 2020, with Ms. P. Gerfen, Site Vice President, and other members of your staff. A telephonic exit meeting was conducted on March 24, 2020, with Mr. A. Kadir, Exam Supervisor, who was provided the NRC licensing decisions.

The examination included the evaluation of six applicants for reactor operator licenses, seven applicants for instant senior reactor operator licenses, and one applicant for upgrade senior reactor operator license. The license examiners determined that all applicants satisfied the requirements of 10 CFR Part 55, and the appropriate licenses have been issued. There were no post-examination comments submitted by your staff. The enclosure contains details of this report.

No findings were identified during this examination.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with 10 CFR 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely, Gregory E. Digitally signed by Gregory E. Werner Werner Date: 2020.04.09 08:49:53-05'00'

Gregory E. Werner, Chief Operations Branch Division of Reactor Safety Docket Nos. 05000275 and 05000323 License Nos. DPR-80 and DPR-82

Enclosure:

Examination Report 05000275/2020301 and 05000323/2020301 w/Attachment: Supplemental Information

Inspection Report

Docket Numbers: 05000275, 05000323 License Numbers: DPR-80, DPR-82 Report Numbers: 05000275/2020301, 05000323/2020301 Enterprise Identifier: L-2020-OLL-0015 Licensee: Pacific Gas and Electric Company Facility: Diablo Canyon Power Plant, Units 1 and 2 Location: Avila Beach, California Inspection Dates: February 24, 2020, to March 24, 2020 Inspectors: J. Kirkland, Senior Operations Engineer, Chief Examiner T. Farina, Senior Operations Engineer M. Doyle, Operations Engineer M. Hayes, Operations Engineer N. Hernandez, Operations Engineer Approved By: Gregory E. Werner Chief, Operations Branch Division of Reactor Safety Enclosure

SUMMARY

ER 05000275/2020301; 05000323/2020301, 02/24/2020 - 03/24/2020, Diablo Canyon Power

Plant, Units 1 and 2, Initial Operator Licensing Examination Report The NRC examiners evaluated the competency of six applicants for reactor operator licenses, seven applicants for instant senior reactor operator licenses, and one applicant for upgrade senior reactor operator license at Diablo Canyon Power Plant, Units 1 and 2.

The licensee developed the examinations using NUREG-1021, "Operator Licensing Examination Standards for Power Reactors," Revision 11. The written examination was administered by the licensee on March 6, 2020. The NRC examiners administered the operating tests from February 24 - 28, 2020.

The NRC examiners determined that all applicants satisfied the requirements of 10 CFR Part 55, and the appropriate licenses have been issued.

NRC-Identified and Self-Revealing Findings

None.

Licensee-Identified Violations

None.

REPORT DETAILS

OTHER ACTIVITIES

- INITIAL LICENSE EXAM

.1 License Applications

a. Scope

The NRC examiners reviewed all license applications submitted to ensure each applicant satisfied relevant license eligibility requirements. The NRC examiners also audited three of the license applications in detail to confirm that they accurately reflected the subject applicants qualifications. This audit focused on the applicants experience and on-the-job training, including control manipulations that provided significant reactivity changes.

b. Findings

No findings were identified.

.2 Examination Development

a. Scope

The NRC examiners reviewed integrated examination outlines and draft examinations submitted by the licensee against the requirements of NUREG-1021. The NRC examiners conducted an onsite validation of the operating tests.

b. Findings

The NRC examiners provided outline, draft examination and post-validation comments to the licensee. The licensee satisfactorily completed comment resolution prior to examination administration.

The NRC examiners determined the written examinations and operating tests initially submitted by the licensee were within the range of acceptability expected for a proposed examination.

.3 Operator Knowledge and Performance

a. Scope

On March 6, 2020, the licensee proctored the administration of the written examinations to all applicants. The licensee staff graded the written examinations, analyzed the results, and presented their analysis to the NRC on March 22, 2020.

The NRC examination team administered the various portions of the operating tests to all applicants from February 24 - 28, 2020.

b. Findings

No findings were identified.

All applicants passed the written examination and all parts of the operating tests. The final written examinations and post-examination analysis may be accessed in the ADAMS system under the accession numbers noted in the attachment. There were no post-examination comments as indicated in the licensee submittal.

The examination team noted no generic weaknesses associated with applicant performance on the operating tests. The licensee identified three generic weaknesses associated with applicant performance on the written examinations:

1. Refueling water storage tank technical specifications - 9 of 14 missed Question 9 2. Temperature to stabilize the reactor coolant if temperature is below no-load T ave following a reactor trip - 9 of 14 missed Question 40 3. Maximum cooldown rate during natural circulation - 5 of 8 missed Question 90

.4 Simulation Facility Performance

a. Scope

The NRC examiners observed simulator performance with regard to plant fidelity during examination validation and administration.

b. Findings

No findings were identified.

.5 Examination Security

a. Scope

The NRC examiners reviewed examination security for examination development during both the onsite preparation week and examination administration week for compliance with 10 CFR 55.49 and NUREG-1021. Plans for simulator security and applicant control were reviewed and discussed with licensee personnel.

b. Findings

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

Exit Meeting Summary

The chief examiner presented the preliminary examination results to Ms. P. Gerfen, Site Vice President, and other members of the staff on February 27, 2020. A telephonic exit was conducted on March 24, 2020, between Mr. J. Kirkland, chief examiner, and Mr. A. Kadir, Exam Supervisor. The licensee did not identify any information or materials used during the examination as proprietary.

SUPPLEMENTAL INFORMATION

KEY POINTS OF CONTACT

Licensee Personnel

J. Rogers, Operation Training Manager

R. Fortier, Examination Development Lead

A. Kadir, Exam Supervisor

C. Mehigan, Examination Operations Representative

L. Toribio, Examination Developer

NRC Personnel

L. Brandt, Acting Senior Resident Inspector

J. Reynoso, Resident Inspector