ML20209E150
| ML20209E150 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 01/26/1987 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML20209B481 | List: |
| References | |
| 80501-SQN, 80501-SQN-R04, 80501-SQN-R4, NUDOCS 8702040605 | |
| Download: ML20209E150 (7) | |
Text
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TVA EMPLOYEE CONCERNS REPORT NUMBER:
SPECIAL PROGRAM 80501-SQN REPORT TYPE REVISION NUMBER:
Element Report 4
TITLE:
PAGE 1 0F 6 Engineering Document Quality REASON FOR REVISION:
Incorporate consnent by TAS and SRP and to include Sequoyah Site Director's response to CATD To re-format in accordance with the Writer's Guide.
Revision indicators are shown in right hand margin of report.
Note:
Sequoyah Applicability Only PREPARATION PREPARED BY:
J. E. Mann U
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PDR ADOCK 05000327
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SIGNATURE DATE SpATURE*
DATE APPROVED BY'
$ RYA ThD N/A ECSP SAN $ER DATE I
MANAGER OF NUCLEAR DATE POWER CONCURRENCE (FINAL REPORT ONLY)
- SRP Secretary's signature denotes SRP concurrences are in files.
REPORT NUMBER:
. REPORT TYPE:
80501-SQN Element Report-REVISION NUMBER:
TITLE:
4 Engineering Document Quality PAGE 2 0F 6 1.0 CHARACTERIZATION OF ISSUES 1.1 Introduction This report pertains to the Quality Assurance Category Evaluation Group (QACEG) investigation of an employee concern which was identified by Quality Technology Corporation (QTC) during the Watts Bar Employee Concern Special Program.
This issue was determined to be applicable to the Sequoyah Nuclear Plant (SQNP) and was investigated and evaluated on that basis.
4 l.2 Description of Issue The basic issue raised by the concern was that " typical" installation detail drawings were not provided.
(IN-85-463-006) 4 2.0
SUMMARY
i 2.1 Sununary of Characterization of Issue The issue derived from the concern is that " typical" installation detail drawings were not provided.
The concern relates to problems associated with instrumentation installation because there were no typical installation detail drawings.
Therefore, there -were no specific inspection acceptance criteria for instrument mountings.
2.2 Summary of Evaluation Process l
During the course of the evaluation, various documents such as Appendix B to 10CFR50, TVA Topical Report TVA-TR75-1, Nuclear Quality Assurance Manual (NQAM), Administrative Instructions (AIs), Inspection Instructions (II), drawings and reports were reviewed.
In addition, discussions were held with cognizant personnel pertaining to the issue to determine the requirements for the installations.
2.3 Summary of Findings The QACEG investigation substantiated this issue and identified the following findings:
a.
There were no " typical" drawings for locally mounted safety i
related instruments prior to March 31, 1981.
b.
The environmental qualification "walkdowns" have shown that there j
are problems with instrument mountings.
i c.
Gilbert / Commonwealth
- Report,
" Technical Review of Sequoyah l
Nuclear Plant Modifications," March 23,1986 (Report Number 2164) indicated that discrepancies with instrument mountings exist due to inadequate design drawings.
.. ~
, ~ _ -
REPORT NUMBER:
REPORT TYPE:
80501-SQN Element Report REVISION NUMBER:
TITLE:
4 Engineering Document. Quality PAGE 3 0F 6 2.4 Corrective Actions taken and the results achieved to date The Generic Concern Task Force (GCTF) Report of Employee Concern Number IN-85-463-006, " Typical Drawings for Instrumentation", June 5, 1986, substantiated the issue at SQNP and made recommendations for corrective action.
The report included Pre-Restart and Post-Restart recommaendations such as "walkdowns" to verify proper installations on all safety-related instrument mountings and provisions for the Division of Nuclear Engineering (DNE) to provide drawings for all safety-related instrument mountings.
QACEG initiated an Employee Concern Special Program (ECSP) " Corrective Action Tracking Document" (CATD) Number 80501-SQN-01 because no evidence could be found that the Corrective Action recommendations of the GCTF Report had been responded to.
In response - to the CATD, the Sequoyah Site Director transmitted Corrective Action Plans (CAP) which commit to pre-restart and post-restart actions to address the concern and the GCTF recommendations.
These actions include:
obtaining a list of safety-related instruments required for Final Safety Analysis Report (FSAR), Chapter 15 events and safety-related instruments other than those required for FSAR Chapter 15 events and determining their location; development and approval of walkdown procedure; performing walkdowns to document verified installations and to verify problem areas; initiating corrective actions, as required, for each problem installation; and initiating Engineering Change Notices (ECNs) to provide adequate installation instructions.
3.0 EVALUATOR (S)
J. E. Mann i
4.0 EVALUATION PROCESS l
4.1 General Methods of Evaluations Researched the Employee Concern File (including the Confidential File) for any additional information pertaining to this issue.
No further i
information was available.
Contacted the Employee Concerns personnel i
at SQNP and obtained Generic Concern Task Force (GCTF) Report for l
Employee Concern number IN-85-463-006, dated June 4, 1986, " Typical Drawings for Instrumentation".
l l
REPORT NUMBER:
REPORT TYPE:
80501-SQN Element-Report REVISION NUMBER:
TITLE:
4 Engineering Document Quality PAGE 4 0F 6 4.2 Specifics of Evaluation Reviewed the following documents to determine requirements and commitments at SQNP:
a.
Appendix B
to
- 10CFR50, Criterion
- III,
" Design Control";
Criterion V,
" Instructions, Procedures and Drawings";
and Criterion VI, " Document Control".
b.
TVA Topical Report, TVA-TR75-1A/R8, Section 17.2.6,
" Document Control",
c.
NQAM, Part III, section 1.1,
" Document Control", revision 0, dated June 18, 1986; part V, section 2.4, revision 0, dated July 10, 1985, " Design Change Supplements"; and part V, section 6.1, revision 0, dated December 31, 1984, " Drawing Control".
d.
SQNP AI-25, revision 15, dated July 15, 1986, " Drawing Control After Unit Licensing".
e.
SQNP AI-25, Part 2, revision 0, dated October 15, 1985, " Revision of As-Constructed Drawings".
f.
Gilbert / Commonwealth
- Report,
" Technical Review of Sequoyah Nuclear Plant Modifications," March 23, 1986 (Report number 2164).
g.
Sequoyah Nuclear Plant Inspection Instruction (II) Number 84,
" Instrumentation Location and/or Installation Inspection",
revision 4, December 31, 1981.
h.
Sequoyah Nuclear Plant Inspection Instruction (II) Number 85,
" Installation Verification, Flushing and Pressure Testing of Instrumentation Sensing Lines, Sampling Lines, Co! trol Supply Headers and Signal Lines," revision 10, May 4, 1984.
i.
Generic Concern Task Force (GCTF) Report of Employee Concern Number IN-85-463-006, " Typical Drawings for Instrumentation,"
June 5, 1986.
A review of the various revisions to the above procedures determined that there were no changes from earlier revisions that would have an effect on the findings and conclusions contained in this report.
In addition to reviewing the above documentation, QACEG's evaluation included discussions with supervisory personnel in Drawing Control, Quality Assurance, and Employee Concern Special Project personnel at Sequoyah.
Additionally, QACEG held discussions with a Supervisor, Electrical Quality Control, Watts Bar, who was assigned to Sequoyah during the construction of the plant.
I L
L
F REPORT NUMBER:
REPORT TYPE:
80501-SQN Element Report REVISION NUMBER:
TITLE:
4 Engineering Document Quality PAGE 5 0F 6 5.0 FINDINGS 5.1.1 Discussion The concern states that typical installation detail drawings were not provided, therefore there were no specific inspection acceptance criteria.
The GCTF Report was reviewed and its contents evaluated by QACEG.
The report substantiates that typical installation detail drawings were not provided.
The Gilbert /Conanonwealth Report, " Technical Review of Sequoyah Nuclear Power Plant Modifications", March 3, 1986 (Report No.
2164) was reviewed as it pertains to this issue.
The report indicated that discrepancies with instrument mountings existed due to inadequate design drawings.
Discussions were held with a Supervisor, Electrical Quality Control, Watts Bar, who was assigned to Sequoyah during the construction of the plant.
He stated that locally mounted instruments were installed in accordance with approved vendor drawings and seismic support drawings (47A051 and 47A052 series).
lie further stated that although " typical" detail drawings for locally mounted instruments were not provided, he felt that there were adequate installation instructions and inspection acceptance criteria to properly install the instruments.
5.1.2 Conclusion Based on QACEG evaluation of the specific evaluation reports, discussions with cognizant personnel and review of pertinent documents, the issue is substantiated at SQNP and the following findings were identified:
a.
There were no " typical" detail drawings provided for l
l locally mounted safety-related instruments prior to March 31, 1981.
b.
Environmental qualification "walkdowns" have shown that there are problems with instrument mountings.
Attachment A identified the concern as potentially safety l
significant.
As identified in paragraph 5.1.3 planned 4
corrective actions are ongoing and any impact on safety will be determined upon completion of those actions.
REPORT NUMBER:
REPORT TYPE:
80501-SQN Element Report REVISION NUMBER:
TITLE:
4 Engineering Document Quality PAGE 6 0F 6 5.1.3 Corrective Action In response to CATD Number 80501-SQN-01 initiated by QACEG, the Sequoyah Site Director transmitted Corrective Action Plans which consnit to pre restart and post-restart actions to address the concern and the GCTF recommendations.
The actions include:
obtaining a list of sa fety-related instruments required for FSAR Chapter 15 events, and safety-related instruments other than those required for FSAR Chapter 15
- events, and determining their location; development and approval of walkdown procedure; performing walkdowns to document verified installations and to verify problem areas; initiating corrective actions, as required for each problem installation; and initiating ECNs to provide adequate installation instructions.
The SQN response adequately addresses the recommendations contained in the GCTF Report.
6.0 ATTACHMENTS A.
List of Employee Concerns B.
GCTF
- Report, IN-85-463-006,
Subject:
Typical Drawings for Inatrumentation C.
Corrective Action Tracking Document (CATD) 80501-SQN-1
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