ML20195F880
| ML20195F880 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/21/1988 |
| From: | Gridley R TENNESSEE VALLEY AUTHORITY |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NUDOCS 8811220394 | |
| Download: ML20195F880 (4) | |
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TENNESSEE VALLEY AUTHORITY CH ATTANOOG A. TENNESSEE 37401 SN 1578 Lookout Place NOV 211988
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U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.
20555 Gentlemen:
In the Matter of
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Docket Nos. 50-327 Tennessee Valley Authority
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50-328 SEQUOYAH NUCLEAR PLANT (SON) UNITS 1 AND 2 - NRC INSPECTION REPORT NOS. 50-327/88-44 AND S0-328/88 NOTICE OF VIOLATION Enclosed is TVA's response to F. R. McCoy's letter to S. A. White dated October 28, 1988, that transmitted the subject notice of violation.
The enclosure provides TVA's response to the notice of violation.
This submittal contains no commitments.
If you have any questions, please telephone H. A. Cooper at (615) 870-6549.
Very truly yours, TENNESSEE VALLE AUTHORITY R. G diey, Mana r Nuclear Licenst g and j
Regulatory Affairs Enclosure cc:
See page 2 i
k GG11220394 881121 POR ADOCK 05000327 i
Q PDC An Equal Opportunity Employer
d U.S. Nuclear Regulatory Comission cc (Enclosure):
Ms. S. C. Black, Assistant Director for Projects TVA Projects Division U.S. Nuclear Regulatory Comission One White Flint, North 11555 Rockville Pike Rocky 111e, Maryland 20852 Mr R. McCoy, Assistant Director
.,,.. Inspection Programs TVA Projects Division U.S. Nuclear Regulatory Comission Region II 101 Marietta Street, NH, Suite 2900 Atlanta, Georgia 30323 Sequoyah Resident Inspector Sequoyah Nuclear Plant 2600 Igou Fer;y Doad Soddy Daisy, Tennessee 37379
ENCLOSURE RESPONSE TO NRC INSPECTION REPORT NOS. 50-327/83-44 AND 50-328/88-44 F. R. McC0Y'S LETTER TO S. A. WHITE DATED OCTOBER 28, 1988 Violation 50-327, 328/88-44-02 "Ter.hnical Specification 6.8.1 requires that written procedures be establishef, implemented and maintained for those activities associated with
- equipmer, listed in Appendix 'A' of Regulatory Guide 1.'3, Povision 2, which requires that maintenance that can affect the performance of safety-related equipment be properly preplanned and performed in accordance with written precedures.
Work request, WR 8206449, contained a caution statement to be adhered to while performing a position calibration on the Unit 2 CIPA' incore detector.
The caution specified that the storage reel be locked wnen using the drive unit to drive the detector to the storage location.
Contrary to the above, on September 9. 1988, licensee personnel failed to comply with the precautions listed in WRB296449, resulting in an inadvertent withdrawal of the incore probe from its tube enclosure.
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This [ls) a Severity Level IV Violation (Supplement 1)."
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Admission or Dental of the Alleged Violation TVA admits the violation occurred as stated.
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Reason' for the Violatio__n.
This violation occurred as a result of personnel error.
4 The individuals involved failed to secure the cable storage reel for the "A" incore detector with the locking pin before loosening the spring-loaded holddown reel.
This personnel error, which could have been avolded by adherence to the p ecaution referenced in the above notice of violation, occurred in par t as a result of several factors.
First, the work request did not provide detailed work i
i inst *uctions.
Instead, the Individuals themselves were relled upon to perform i
this maintenance activity based on their knowledge of the detailed 1
instructions contained in a two-volume vendor manual that was not avaliable at the job site.
i Additionally, the lack of a prejob briefing, the addition of a full face mask respirator to the dressout requirements (which seriously affected communications), and the absence of sufficient lighting in the work j
area all contributed to this event.
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6 Corrective Steps That Have Been Take\\_and Results Achieved
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As a result of this event, SQN has implemented Halntenance Instruction 1.'. 3.8, f
"Incore Flux Detectors Removal and Installation." This procedure, alon) with providing detalled work instructions, provides 111ustrations, warnings, and dou'ule person verifications that the locking pin is installed when required.
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j Additionally, the instruction requires prejob briefings, establishment of i
i proper communications, and a verification that sufficient lighting is
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available to perform the necessary maintenance.
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s Corrective Steps That Hill Be Taken to Avoid Further Violations The corrective steps already taken are adequate to pre /ent recurrence of this violation.
D_ ate When Full Compilance Hlil Be Achieved SQN.
- n full comollance..
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