ML19350A571

Responds to NRC 800917 Ltr Re Violations Noted in IE Insp Rept 50-370/80-12.Corrective Actions:Examiner Candidates Required to Demonstrate Proficiency by Use of Process Control from M-4A During Practical Exam

ML19350A571
Person / Time
Site:	Mcguire
Issue date:	10/09/1980
From:	Parker W DUKE POWER CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19350A542	List: ML19350A555 ML19350A565 ML19350A571
References
NUDOCS 8103160510
Download: ML19350A571 (3)

Text

• *

. . 6, DUKE POWER COMPANY Powra Buttorno 422 Sourn Catuacu Srazzi, CruatorTz, N. C. asa4a f' 1; I*

a* oe vc wiwa o.e4nnen.sn. October 9, 1980 WCf Patsiotut TELtpaowt; Anta 704

$? tam PmOOWCTION 373-4083 Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Subject:

McGuire Nuclear Station Docket No. 50-370

Reference:

RII:TDG 50-370/80-12

Dear Mr. O'Reilly:

As requested by your letter of September 17, 1980, please find attached our response to the item of noncompliance identified in the subject inspection report.

Duke Power Company does not consider any information contained in IE Inspec-tion Report No. 50-370/80-12 to be proprietary.

Very truly yours, William O. Parker, Jr.

g GAC:ses Attachment 8103280 ,/ ( D -

xm.,u ,,,,,.

DUKE POWER COMPANY MCGUIRE NUCLEAR STATION 1

Response to IE Inspection Report 50-370/80-12 ITEM As required by 10CFR 50, Appendix B, Criterion IX, and implemented by Duke  !

Power Company Topical Report Duke.1-A, Section 17, Paragraph 17.1.9,

" Measures shall be established to assure that special processes including welding, heat treating, and nondestructive testing, are controlled and accomplished by qualified personnel using qualified procedures in accordance with applicable codes, standards, specifications, criteria, and other special requirements." ASME Boiler and Pressure Vessel Code is the applicable code for training and qualification program for visual examiners.

Contrary to the above, the training and qualification program for visual examiners does not comply with applicable requirements as follows:

1. The practical ewsmination does not include sufficient checkpoints to verify examiner candidate proficiency. '

2. The qualification records do not describe the test objects used in the practical exam.

3. The practical examination does not include test objects representative of the type to be examined in production.

4. Two major rejectable defects are not included in the trainin3/qualifica-tion program.

5. The program does not include test specimens representing acceptable /

unacceptable weld surface conditions.

6. Two completed welds did not meet the 3-1 slope requirements of ASME.

7. The device used to determine adequate lighting is not in accordance with ASME.

' RESPONSE

1. Examiner candidates are required to demonstrate proficiency by use of process control from M-4A during practical exams. These forms, M-4A, contain more than 10 checkpoints.

2. Although the test specimens are not formally described in a written i document, the test specimens are readily available for physical inspec-tion. Such a description is not a strict requirement, but one of the guidelines set up in SNT-TC-1A. The word " representative" is used when r.eferring to test specimens used in examinations and training.

l l

l

e .. -

.- 2

/

3&4. McGuire does not presently have samples for testing purposes of socket weld and butt fitups. The same is true of oxidation and cracking samples. These samples will be developed and incorporated into our training program. These 'fitups are presently being taught using on the job training and practical work done in our weld test shop. These items are also included in the classroom training. Sam;,les will be developed by November 15, 1980.

5. McGuire does not presently use test specimens for acceptable / unacceptable weld surface conditions in the training program except during practical exams. Samples or other suitable training aids will be developed by November 15, 1980.

6. The two welds in question, CA2FW-12-3 and RN2F 520. join heavy wall valves to schedule 40 piping. -Valve 2CA8 was weld prepped to a normal 37 1/20 bevel witn a secondary bevel of 450 on the thicker portion of the valve. Duke welders have overlapped the weld (CA2FW 12-3) onto the 450 secondary bevel. This overlapping actually decreases the weld slope and the slope falls within the code requirement of a minimum 3 to 1 taper. It is our position that this weld is acceptable.

Weld RN2F 520 overlaps valve 2RV 69A. The valve has a 37 1/20 bevel at the weld prep with a 3 to I taper from the 37 1/20 weld bevel up onto the valve. Again the overlapping decreases the slope and falls within the code requirements of a minimum 3 to 1 taper. It is our position that this weld is acceptable.

7. Quality Assurance Procedure L-80 will be changed to agree with the wording in ASME Section V. This procedure change will be issued by November 15, 1980.