IR 05000445/2018301

NRC Examination Report 05000445/2018301, 05000446/2018301

ML18207A942
Person / Time
Site:	Comanche Peak
Issue date:	08/01/2018
From:	Vincent Gaddy Operations Branch IV
To:	Peters K Vistra Operations Company
References
50-445/18-301, 50-446/18-301
Download: ML18207A942 (13)

Text

August 1, 2018

SUBJECT:

COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2 - NRC EXAMINATION REPORT 05000 445/2018301; 05000 446/2018301

Dear Mr. Peters:

On July 19, 20 18, the U.S. Nuclear Regulatory Commission (NRC) completed an initial operator license examination at Comanche Peak Nuclear Power Plant, Units 1 and 2. The enclosed report documents the examination results and licensing decisions. The preliminary examination results were discussed on June 15, 2018 , with members of your staff.

A telephonic exit meeting was conduct ed on July 19, 2018 , with M s. Donna Christiansen, Training Director

, who was provided the NRC licensing decisions.

The examination included the evaluation of six applicants for reactor operator licenses, six applicants for instant senior reactor operator licenses, and three applicant s for upgrade senior reactor operator license s. The license examiners determined that fourteen of the fifteen applicants satisfied the requirements of Title 10 of the Code of Federal Regulations (CFR) Part 55, and the appropriate licenses have been issued.

There was one post examination comment submitted by your staff.

Enclosure 1 contains details of this report and Enclosure 2 summarizes post examination comment resolution

. No violations were identified during this examination

. In accordance with 10 CFR 2.390 of the NRC's "Agency Rules of Practice and Procedure," a copy of this letter and its enclosure will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records (PARS) component of UNITED STATES NUCLEAR REGULATORY COMMISSION REGION IV 1600 E. LAMAR BLVD ARLINGTON, TX 76011-4511 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).

Sincerely,

/RA/ Vincent G. Gaddy, Chief Operations Branch Division of Reactor Safety Docket Nos.

50-445, 50-446 License Nos.

NPF-87, NPF-89 Enclosure s: 1. Examination Report 05000445/2018301; 05000446

/2018301

w/Attachment:

Supplemental Information 2. NRC Post Examination Comment Resolution COMANCHE PEAK NUCLEAR POWER PLANT, UNITS 1 AND 2

- NRC EXAMINATION REPORT 05000445/2018301; 05000 446/2018301 DATED AUGUST 1, 2018 DISTRIBUTION:

KKennedy, RA SMorris, DRA AVegel, DRP MShaffer, DRS JClark, DRS RLantz, DRP DCylkowski, RC JJosey, DRP RKumana, DRP MHaire, DRP RAlexander, DRP AAthar, DRP LNewman, DRP LReyna, DRP JBowen, RIV/OEDO VDricks, ORA JWeil, OCA MO'Banion, NRR AMoreno, RIV/CAO BMaier, RSLO JBridges, OB GGeorge, IPAT PJayroe, DRP/IPAT MHerrera, DRMA R4Enforcement

REGION IV Docket Nos.: 50-445, 50-446 License Nos.: NPF-87, NPF-89 Report No s.: 05000445/2018301; 0500044 6/2018301 Licensee: Vistra Operations Company LLC Facility: Comanche Peak Nuclear Power Plant, Units 1 and 2 Location: Glen Rose, Texas Dates: June 11 - July 19 , 201 8 Inspectors:

K. Clayton, Chief Examiner, Senior Operations Engineer J. Kirkland , Senior Operations Engineer C. Osterholtz, Senior Operations Engineer M. Hayes, Operations Engineer Approved By:

Vincent G. Gaddy, Chief Operations Branch Division of Reactor Safety

2

SUMMARY

ER 05000 445/2018301; 05000 446/2018301; June 11 - July 19 , 2018; Comanche Peak Nuclear Power Plant, Units 1 and 2; Initial Operator Licensing Examination Report.

NRC examiners evaluated the competency of six applicants for reactor operator licenses, six applicants for instant senior reactor operator licenses and three applicant s for upgrade senior reactor operator license at Comanche Peak Nuclear Power Plant, Units 1 and 2

. The NRC developed the examinations using NUREG

-1021, "Operator Licensing Examination Standards for Power Reactors," Revision 11. The written examination was administered by the licensee on June 20, 2018. NRC examiners administered the operating tests on June 11 - 17, 2018. The examiners determined that fourteen of the fifteen applicants satisfied the requirements of 10 CFR Part 55, and the appropriate licenses have been issued.

A. NRC-Identified and Self-Revealing Findings

None.

B. Licensee-Identified Violations

None.

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REPORT DETAILS

4OA5 Other Activities (Initial Operator License Examination)

.1 License Applications

a. Scope

NRC examiners reviewed all license application s submitted to ensure each applicant satisfied relevant license eligibility requirements.

Examiners also audited three of the license applications in detail to confirm that they accurately reflected the subject applicant's qualifications. This audit focused on the applicant's experience and on

-the-job training, including control manipulations that provided significant reactivity changes.

b. Findings

No findings were identifie d.

.2 Examination Development

a. Scope

The NRC developed the written exam and operating tests in accordance the requirements of NUREG

-1021. The NRC examination team conducted an on

-site validation of the operating tests.

b. Findings

No findings were identified.

.3 Operator Knowledge and Performance

a. Scope

On June 20, 2018, 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 and post examination comments to the NRC on June 25, 2018

. The NRC examination team administered the various portions of the operating test s to all applicants on June 11 - 17, 2018.

b. Findings

No findings were identified.

All applicants passed the written examination and fourteen of fifteen applicants passed all portions of the operating test. The final written examination s and post examination analysis and comments may be accessed in the ADAMS system under the accession numbers noted in the attachment.

The examination team note d five generic weaknesses associated with applicant performance on the operating tests. All of the weaknesses were attributed to knowledge weaknesses on the topic and included the following items:

1. Several crews (2/4) could not adequately determine a fuel failure event was in progress during a scenario

. 2. Several applicants (3/4) could not adequately operate the control room ventilation system. 3. Applicants had difficulty with anti-pump features of handswitches and their associated breakers

. 4. Several crews (3/4) had difficulty diagnosing a faulted a nd ruptured steam generator during a scenario.

5. Several crews struggled with proper communications during the scenario s.

The licensee identified five generic weaknesses associated with applicant performance on the written examinations. All of the weaknesses were attributed to knowledge weaknesses on the topic and included the following items:

1. Applicants were unfamiliar with design features of the containment sump

. 2. Applicants were unfamiliar with Abnormal Procedure ABN

-901, Fire Protection System Alarms or Malfunctions

. 3. Applicants had difficulty recalling safety-related battery capacities.

4. Applicants were unfamiliar with the immediate operability requirements regarding fuel oil for the emergency diesel generators and their Technical Specification requirements (day tank requirements).

5. Applicants had difficulty determining what system to use during emergency procedures to lower containment hydrogen during a Loss of Coolant Accident

. Copies of all individual examination reports were sent to the facility Training Manager for evaluation and determination of appropriate remedial training.

The licensee generated Issue Report IR-2018-004425 for resolution of all operating test and written examination generic weaknesses.

.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.

4OA 6 Meetings, Including Exit

Exit Meeting Summary

The chief examiner presented the preliminary examination results to M r. Thomas McCool, Site Vice President, and other members of the staff on June 15, 2018. A telephonic exit was conducted on July 19, 2018 between Mr. K. Clayton, Chief Examiner, and M s. Donna Christiansen, Training Director

. The licensee did not identify any information or materials used during the examination as proprietary.

SUPPLEMENTAL INFORMATION

KEY POINTS OF CONTACT

Licensee Personnel

T. McCool, Site Vice President

D. Christiansen, Training Director

J. Lloyd, Operations Support Manager

J. Ruby, Exam Developer

NRC Personnel

J. Josey, Senior Resident Inspector