ML20212F458

Rev 2 to TVA Employee Concerns Special Program Sequoyah Element Rept 302.06-SQN, Transfer Canal Electrical Equipment Problem

ML20212F458
Person / Time
Site:	Sequoyah
Issue date:	02/18/1987
From:	Stewart D TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20212F190	List: ML20212F185 ML20212F275 ML20212F313 ML20212F342 ML20212F370 ML20212F389 ML20212F438 ML20212F458 ML20212F498 ML20212F529 ML20212F562 ML20212F581
References
302.06-SQN, 302.06-SQN-R02, 302.06-SQN-R2, NUDOCS 8703050092
Download: ML20212F458 (5)

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't [, TVA EMPLOYEE CONCERNS REPORT NUMBER: 302.06-SQN

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SPECIAL PROGRAM

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. REPORT TYPE: Sequoyah Nuclear Plant-Element REVISION NUMBER: 2

.w l~ ' TITLE: Transfer Canal Electrical Equipment Problem

, REASON FOR REVISION: Revised to incorporate SRP comments Revision 1 Revised to reflect a scope change for Revision 2 Employee Concern SQP-6-011-001 i

PREPARATION PREPARED BY:

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2-i0-2 7 REVIEWS DATE PEER:

_.. 2% ASIGNATURE 2/n/87 DATE

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• SIGNATURE 2 N rP DATE

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CONCURRENCES CEG-H:ha -

e- 2-fl-67 SRP: h 2"/8* D7

• SIGNATUP.E DATE SIGNATURE DATE

\()~l APPR0/ED r.Y:

Mudad-ECSP MANAGER DATE MANAGER OF NUCLEAR POWER DATE CONCURRENCE (FINAL REPORT ONLY) 14437 t,

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TENNESSEE VALLEY AUTHORITY

'. l SEQUOYAH NUCLEAR PLANT ENPLOYEE CONCERNS TASK GROUP ,

OPERATIONS CEG Subcategory: Cable and Conduit Element: Transfer Canal Electrical Equipment Problem

) Report Number: 302.06 - SQN Revision 2 Concern Numbers: SQP-5-004-002 SQP-6-011-001 Evaluator: 8, 77 b 2 ~/d"8 7

' B. Meers, J/. Date Reviewed by:

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,~ 2-II-@7 W. R. Lagledgren Date 1443T

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I. Transfer Canal Electrical Equipment Problem

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This report evaluates the concern that the electrical equipment in the fuel transfer canal is not installed according to the drawings and the concern that there are no fuel transfer system "as-constructed" lR2 drawings. l II. Specific Evaluation Methodology This element is made up of two K-forms:

"SQP-5-004-002 - The configuration of the electrical equipment in the Transfer Cankl is not per the drawing. Details known to QTC and withheld to maintain confidentiality.

Nuclear Power concern. No further information may be released. CI has no further information."

"SQP-6-011-001 - The fuel transfer system was upgraded from non-QA to a QA Level II; however, there are no "as-constructed" drawings. Nuclear Power concern. CI has no further information."

The K-forms were reviewed to determine the area of concern. The referenced documents were reviewed to determine the requirements and testing conditions of fuel transfer equipment presently located in the transfer canal. The Engineering Change Notices (ECN) authorizing the l equipment modifications and the associated installation and testing l workplans were reviewed. As-constructed drawings referenced in the l workplans were reviewed to verify as-constructed configuration lR2 following completion of the work plans. This was done by comparing l drawings obtained from the Drawing Control Center with the respective l workplans. Interviews were held with cognizant engineers in SQN l Systems Engineering to evaluate the testing history of the equipment in question. It was not necessary to review any " upper tier" documents, work requests, regulatory requirements, or NCRs.

III. Findings Following initial construction, the electrical equipment in the transfer canal was tested by Preoperational tests W-7.2B Unit 1 and W-7.2B Unit 2 (references 1 and 2).

The equipment tested by these Preoperational Tests wss subsequently l replaced with the presently existing equipment because of water leakage i into the air motors and limit switches. This was done by authority of l ECN LS867 R0 (reference 3). Several workplans were involved in lR2 completion of ECN L5867 (reference 8). These workplans were reviewed l together with current as-constructed deswings. The as-constructed l drawings have all been updated as specified in the workplans. Following l the modification, the new equipment including the electrical equipment now in question was tested by Post Modifications Test (PMT) - 48. This was done by Workpl6.1 10736 and 11561 for Unit 1 (references 4 and 5) lR2 and by Workplan 11177 for Unit 2 (reference 6). I Page 1 of 2

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• III. Findings (Continued) l Administrative Instruction AI-19 provides for "As-Constructing" drawings following modification by workplan. (reference 7). lR2 See also ECTG report 307.04, "Workplan Process" (reference 9). l

Conclusions:

j Workplans and as-constructed drawings regarding the installation of new j . fuel transfer equipment were reviewed and compared. All drawings were found to be in agreement with the workplans referenced _and were i correctly as-constructed.

c The concerns SQP-5-004-002 and SQP-6-011-001 are determined to be not valid.

IV. Root Cause None i V. Generic Applicability No problem with "as-constructed" drawings for the fuel transfer system l was identified at SQN. A sample review of WBN fuel transfer system l drawings indicated "as-constructed" drawings exist; therefore, this lR2 issue is not generic to WBN and no detailed evaluation will be l conducted. l VI. References

1. SQN Preoperational Test Data Package W-7.2B for Unit 1

2. SQN Preoperational Test Data Package W-7.2B for Unit 2

3. ECN L5867 RO

4. Post Modifications Test 48, Workplan 10736 for Unit 1

5. Post Mod}fications Test 48, Workplan 11177 for Unit 2 l l

l 6. Post Modifications Test 48, Workplan 11561 for Unit 1 l I

7. SQN Administrative Instruction AI-19, Part IV, " Plant l Modifications: After Licensing," Revision 18, dated lR2 July 7, 1986. l I

8. Workplans 10341, 10646, 10664, 10994, and 11041. l I

9. Employee Concerns Task Group Report 307.04, "Workplan Process," l Revision 4, dated December 11, 1986.

VII. Immediate or Long Term Corrective Action None Page 2 of 2 l

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TENNESSEE VALLEY AUTHORITY PAGE -lk2)

REFERENCE - ECPS120J-ECPS121C OFFICE OF NUCLEAR POWER RUN TIME - 12:

) FREQUENCY - REQUEST EMPLOYEE CONCERN PROGRAM SYSTEM CECPS)

RUN DATE - 10/

, ONP - ISSS - RHM LIST OF EMPLOYEE CONCERN INFORMATION SUBCATEGORY: 30206 TRANSFER CANAL ELECTRICAL EQUIPMENT l

CATEGORY: OP PLANT OPER. SUPPORT KEYNORD A S GENERIC KEYWORD B H APPL QTC/NSRS P CONCERN KEYWORD C CONCERN SUB R PLT BBSH INVESTIGATION S KEYNORD D FLQB REPORT R DESCRIPTION p NUMBER CAT CAT D LOC I-86-163-SQN SS THE CONFIRGURATION OF THE ELECTRICAL NONCONFORMANCE SQP-85-004-002 OP 30206 N SQN NNNY CORRECTIVE ACTIE K-FORM EQUIPMENT IN THE TRANSFER CANAL IS '

T50229 NOT PER THE DRAHING. DETAILS KNOWN ELECTRICAL p TO QTC AND HITHHELD TO MAINTAIN CONF EQUIPMENT IDENTIALITY. NUCLEAR POWER CONCERN.

NO FURTHER INFORMATION MAY BE RELE ASED. CI HAS NO FURTHER INFORMATION p . NO FOLLON UP REQUIRED.

OP 30206 N SQN NNNN SS THE FUEL TRANSFER SYSTEM HAS UPGRADE SQP-86-011-001 K-FORM D FROM NON-QA TO A QA LEVEL II, HOWE p T50277 VER THERE ARE NO "AS CONSTRUCTED DRA HINGS".

2 CONCERNS FOR CATEGORY OP SUBCATEGORY 30206

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