ML17228A126
| ML17228A126 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 04/13/1993 |
| From: | Gibson A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML17228A125 | List: |
| References | |
| 50-389-93-08, 50-389-93-8, NUDOCS 9304210135 | |
| Download: ML17228A126 (2) | |
Text
ENCLOSURE 1
NOTICE OF VIOLATION Florida Power and Light St. Lucie Docket Nos.:
50-389 License No.:
NPF-16 During an NRC inspection conducted on March 10-17,
- 1993, a violation of NRC requirements was identified.
,In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"
10 CFR Part 2, Appendix C, the violation is listed below:
A.
10 CFR, Part 50, Appendix B, Criterion IX, as implemented by FPL Topical guality Assurance Report (FPLTO(AR 1-76A), requires measures be established to assure that special processes, including welding, be accomplished in accordance with applicable codes.
The American Society of Mechanical Engineers Boiler and Pressure Vessel (ASHE B&PV) Code,Section III, 1986 Edition with no Addenda, Subsection NB, has been identified as the applicable code for the repair of the St. Lucie Pressurizer.
[1]
ASME B&PV Code Section III, Paragraph NB-4622; 11(c)(6),
requires that the first layer of weld metal of a temper bead repair be deposited using a 3/32 inch diameter electrodes, that the weld bead crown be removed by grinding, and the second layer be deposited with an 1/8 inch diameter electrode.
[2]
Paragraph NB-4622. 11(c)(5), requires that the weld area, on a
temper bead repair, plus a band around the weld for five inches be preheated to a minimum temperature of 350 F and a maximum interpass temperature of 450 'F during welding, monitored by thermocouple and recording instruments.
[3]
Paragraphs NB-4622. 11(c)(5) and NB-4435(b) require the immediate area around the temporarily attached thermocouple be marked so the removal area can be identified after their removal for subsequent Nondestructive Examination.
Contrary to the above, on March 13, 1993, the requirements of ASME B&PV Code Paragraphs Nos.
[1]
NB-4622. 11(c)(6),
[2]
NB-4622. 11(c)(5),
[3]
NB-4622. 11(c)(5),
and NB-4435(b) were not incorporated, or not correctly incorporated, into the instructions and procedures for the accomplishment of the temper bead repair to four pressurizer, one'inch diameter, vapor
- space, nozzles.
These discrepancies went undetected by the authors and reviewers at the Nuclear Steam Supply System supplier, ASEA Brown Boveri/Combustion Engineering, as well as all the licensee's technical reviewers, including the St.
Lucie Facility Review Group.
The end result of above discrepancies and oversights was the following:
[1]
The second layer of the temper bead repair to all four Pressurizer one inch vapor space nozzles was deposited with 3/32 inch diameter electrodes instead of the ASME Code required 1/8 inch diameter electrode; (The reviewed and approved procedure allowed the use of 3/32 inch electrode.)
9304210l35 930413 PDR ADQCK 05000335 8
Florida Power and Light St. Lucie Docket Nos.:
50-389 License No.:
[2]
The preheat temperature of a band of four inches or less around the welds was monitored instead of the required five inch band; and
[3]
The location of the temporary attachment thermocouple welds were not marked prior to their removal.
This is a Severity Level IV violation (Supplement I).
Pursuant to the provisions of 10 CFR 2.201, Fl,orida Power and Light is hereby required to submit a written statement or explanation to the U.S. Nuclear Regulatory Commission, ATTN:
Document Control
- Desk, Washington, D.C. 20555 with a copy to the Regional Administrator, Region II, and a copy to the NRC Resident Inspector at the facility that is the subject of this Notice, within 30 days of the date of the letter transmitting this Notice of Violation (Notice).
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include for each violation:
(1) the reason for the violation, -or, if contested, the basis for disputing the violation, (2) the corrective steps that have been taken and the results
- achieved, (3) the
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corrective steps that will be taken to avoid further violations, and (4) the date when full compliance will be achieved.
If an adequate reply is not received within the time specified in this Notice, an order or Demand for Information may be issued as to why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken.
Where good cause is shown, consideration will be given to extending the response time.
Dated at Atlanta, Georgia this 13th day of April 1993