ML20206G298
| ML20206G298 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah |
| Issue date: | 11/04/1988 |
| From: | NRC OFFICE OF SPECIAL PROJECTS |
| To: | |
| Shared Package | |
| ML20206G037 | List:
|
| References | |
| NUDOCS 8811220226 | |
| Download: ML20206G298 (4) | |
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UNITED STATES
!:4' NUCLEAR REGULATORY COMMISSION i
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SArETY EVALUATION REDORT BY THE OFFICf 0F SDECIAt PROJECTS l
EurLOYEE CON:!RN ELEWENT FEPORT 00 31211 50N, "SECtID!TY DES 10,N AND Ha8 WADE"
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t TENNES$EF VALLEY Al'THORITY
$Ert? YAW Nt!CLE AR POWER PL ANT UNITS 1 !. ?
000 VET NOS. 50-327 AND 50 328 1
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Subject Catege y:
0;erations (Plant Operations Suppoet)
Security (31200)
Subcate;:ry'SecurityCesignandHardware" Ele-ert:
E oleyse Conce-ns:
312.11 1 Po.er Eleck Security Concept (XX 85-032-001 and XX 85 099 001) 312.11 3 Unreliable Card Readers j
(!N 85 619 002) 312.11-4 Loss of Pe.er in CAS
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(!N 85 955 001) 312.11 5 Emerger.:y Access to Intake Pumping Station i
I (IN 86 291 007) 312.11 6 Inadequate Key Control Program (RI! 86 A 0095)
Tne m... f:r Element Report 312.11 SQN, revised on July 24, 1987, is i
found in five "e ployee concerns" and one allegation made to Region !!
regarning tasic security design and hardware issues.
TVA has found no safety significance with these issues, however, corrective i
actions were deemed appropriate for two, (IN 85 955 01 and RI! 86 A 0095).
t Su--aey Concerns N:. XX 65 032 001 and XX 85-099-001 are considered as one issue,
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ra-ely, lack of se:urity due to the Pcwe Block configuration of the r
pr:te:tec area.
Cc :e-s No. IN 85 619-0:2, IN 86-291 007 and RI! e6 A 0095 are c:nsidere:
I as :*e iss.e. -a ei.. la:t Of a relia:1e e ergen:y access system.
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C:r:ern s:. :s 55 955-0:1 ceals ith less of tre pc.er su;;;'y to tre Ce tral Atar..- Statien.
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!!! Evaluatien i
With rescect to the first issue, Pcwer Block security, Ccncerns 4
i No. xx $5-032 001 and XX 85-099-001, were found generic to both tne Secucyah and Watts Bar f acilities, hewever, TVA did not agree that the concerns were valic.
TVA has investigated the Power Block concept by its i
NSR$ and cone 19ded that security was enhanced and not adversely affected, f
i The approval of the to.or Stock concept by the NRC was also considered j
during this evaluation.
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I With respect to tne second issue, emergency access, Concerns IN 85 619 002, j
IN 86-291007 and R!! 86 A 0095 were evaluated through interviews with
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appropriate personnel, review of procedures, evaluation of Work Requests i
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and a revie. of Licenser Event Reports.
Concerns IN 85 619-002 and IN 86-291 007 were judged to be invalid.
Allegation RI! 86-A 0005 was l
l substantiated ano corrective actions, as discussed in this Element Report, i
1 appear aceQuate.
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With res;ect to the third issue, loss of power to the Central Alarm j
Statien, IN 85 955 001 was evaluated and fcund substantiated.
Corrective f
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actiens, as discussed in this Element Report, appear adequate.
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I V.
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i The NEC staff telieves that TVA appropriately and adequately resolved all l
of these six concerns.
Through interviews, review of procedures, ret.eeds, and event reports the licensee evaluated the concerns and addressed the issues.
The TVA Eletent Re; ort is cceplete, verifiable and the referenced corrective actions can te verified through future inspections, j
It is noted that Regien !! has reached ccepatible conclushins in Report sc. 50- m 4,, 50-3 m e 72.
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UNITED STATES 4
NUCLEAR REGULATORY COMMISSION
$ 'Ty.. f i
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I W ASHIN G TO N, D. C. 20$55 Y
\\s,,, j SAFETY EVALVATION pee 0PT PV THE OFFICE OF SPECIAL PROJECTS,
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EWLOY!E CON *E:', !LtwENT ctrecT op 31211-!ON, "$EClip!TY DESIGN AND war %'a9E" TE'AESSEE VALLEY Al'THORITV d
SENf vaw Nt'CLEA: POWER PLANT UNITS 1 f. ?
l O'N'ET NOS 50-327 AND 50-328 5.:: 4e:'
I Category:
0;erations (Plant Operations Support)
Security (31200)
Sutcate; rg:ecurity Cesign and Hard.are" i
Ele-ent:
S Exployee Cen: erns:
312.11-1 Power Block Security Concept (XX 85-032-001 and XX 85-099-001) 312.11-3 Unreliable Card Readers
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(IN 85-619 002) 312.11-4 Less of Power in CAS (IN 85-955-001) 312.11-5 Emergency Access to Intake Pumping Station 1
(IN 86 291 007) 312.11-6 Inadequate Key Control Program (RI! 86 A-0095) ine easts for Elennt Report 312.11 SQN, revised on July 24, 1987, is fcund in five "e ployee concerns" and one allegation esce to Region !!
regarcing basic security cesign and hardware issues.
TVA has found no safety significance with these issues, however, correc ive actions were det ed a:cropriate fne two, (IN 85 955 01 and RI! 86 A-0095).
Su-ary Cen:eres No. XX 65-032 001 and XX 85-099-001 are considered as one issue, ra-ely, la:k of se:urity ese to the Pcwer Block configuration of the pt:te:te: area.
~: :e r s ',:
h !! !!9 0:2, IN !! 291007 and RI! 56-A 0095 are c:.'si:ere:
as cae iss e, ra ely, la:( ef a relia:1e e-ergsn:y a: cess system.
C:n:ert N:. IN 85 955-001 deals witt. less of the pe.er supply to the Central Alar.- Statien.
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!!!. Evaluatien With res:ect to the first issue, Po.er Block security, Concerns No. XX 85 032-001 and XX SS-099 001, were found generic to both the Secucyah and Watts Bar facilities, he ever, TVA did not agree that the concerns were valid.
TVA has investigated the Po er Block concept by its NSRS and concluded that security was enhanced and not adversely affected.
The approval of the Power Eleck concept by the NRC was also considered during this evaluation.
With resDect to the second issue, e?ergency access, Concerns IN 85 619 002, IN 86 291007 and RI! 86 A 0095 were evaluated through interviews with appropriate personnel, review of procedures, evaluation of Work Requests and a revie-of 1.icensee Event Reports.
Concerns IN 85-619-002 and IN 86-291 007 were judged to be invalid.
Allegation RI! $6 A-0095 was substantiated and corrective actions, as discussed in this Element Report, appear adequate.
With respect to the third issue, loss of power to i.5e Central Alarm Station, IN 85 955 001 was evaluated and found substantiated.
Corrective acticns, as discussed in this Element Report, appear adequate.
IV.
Cerclusien The NRC staff telieves that TVA appropriately and adequately resolved all of these six cencerns.
Through interviews, review of procedures, records, and esent reports the licensee evaluated the concerns and addressed the issues.
The TVA Element Re; ort is cerplete, verifiable and the referenced corrective actions can be verified through future inspections.
l It is rote that Region !! has reached coepatible conclusions in Report l
No. 50 327 and 50-325/66 72.
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