ML20024G919

From kanterella
Jump to navigation Jump to search
Engineering Syposium/Workshop M91-048 on 910220-21 in King of Prussia,Pa.Topics Discussed:Good Engineering Organization & Licensee Actions W/Degraded Conditions & Mod Process Including 10CFR50.59 Reviews
ML20024G919
Person / Time
Site: Maine Yankee
Issue date: 04/15/1991
From: Eapen P, Lopez A
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20024G892 List:
References
M91-048-02, M91-48-2, NUDOCS 9105020119
Download: ML20024G919 (69)


Text

_ __

e U. S. NUCLEAR REGULATORY COhihilSSION REGION 1 Repon No.

hi4Jdhij Docket Nos. As listed in Attachment 1

'T License Nos. As listed in Attachment 1 Licensee:

As listed in Attachment 1

Participants:

As listed in Attachment I hiceting At: Sheraton Valley Forge. King of Prussia. Pennsylvania hiceting Conducted: February 20 - 21. 1901

</ 5 /9/

Prepared by:

p' 7t, e

A. EJopez, keactor Engineer,' Systems Section, date' Engineering Branch, DRS Approved by:

/

b c[t h !/J![/

t s

Dr. P. K. Eapen, Chief, Systems Section,

' date Engineering Branch, DRS hieeting Summary: The Engineering Symposium / Workshop was held to promote an open discussion of various industry topics. The meeting was attended by NRC, licensee, and other industry personnel. The topics discussed were: (1) Elements of a good engineering organization; (2) Licensee's actions with degraded conditions, including operability /reportability determinations; and (3) The modification process including 10CFR 50.59 reviews. The symposium conclusions recommended six action items for the NRC and seven action items for the industry.

9105020119 910417 PDR ADOCK 05000309 p

PDR

o e

Region 1 Meeting Renort M91-048 Table of Contents EaEC 3

1.0 Purposc 2.0 General Overview 3

4 3.0 Summary of Workshop Group Presentations 4.0 Conclusion 6 - List of Attendees - Meeting Agenda - Speakers Slide Presentation - Workshop Group Summaries l

4 3-a

- 1.0 Purnose The Engineering Symposium / Workshop was designed to promote discussion and a better understanding between the utility engineering personnel and the NRC staff regarding the engineering departments role in support of plant activities.

2.0 General Overview The Engineering Symposium was conducted on February 20 - 21,1991, as published in the Federal Register Notice dated January 24,1991. - Attachment 1 presents the list of persons who attended the' symposium. An agenda of the symposium is provided in.

The Engineering Symposium began with a Call to -Assembly, an Introduction, and a Welcome. Mr. J. H. Sniczek, NRC Deputy Executive Director for Operations, and Mr. E. J. Mroczka, Northeast Utilities Senior Vice President of Nuclear Engineering i

and Operations then addressed the symposium, Both Mr. Sniczek and Mr. Mroczka eloquently discussed the theme of the symposium, "The Engineering Role in Plant Support." They provided an excellent basis for promoting open discussion during the symposium. Attachment 3 contains the slides presented by the keynote speakers.

The afternoon concluded with the attendees participating in the first of two planned workshop sessions, The participants were assigned to one of the workshop groups.

Two groups discussed the elements of a good engineering organization; three groups discussed the licensee's actions with degraded conditions including operabihty/reportability. determinations; and three groups discussed the modification process including' 10CFR 50.59 reviews. Each workshop group was lead by two facilitators, one each from the NRC and a licensee, and had approximately.15_- 25 participants.

The participants returned the next m(rning to the same workshop group as the day before for approximately two hcars to finalize discussions and to develop _

recommendations.

At 10:30 a.m. on February 21,- 1991, a speaker, Mr. M. R. Tresler, Diablo Canyon Engineering Manager, Pacific Gas and Electric Company, and Chairman of Region V Engineering Managers' Forum addressed the symposium. Mr. Tresler discussed the experiences at the Region V Engineering Managers' Forum. The slides from Mr.

Tresler's presentation can be found in Attachment 3.

k

.a s.,,,_,_.-

II.

4

-In the afternoon, the facilitators from each of the eight workshop groups presented a summary of the their groups discussions and conclusions. Attachment 4 contains slides from the facilitators presentations. The facilitators presentations were then followed by two wrap up speakers and closing remarks by Mr. M.W. Hodges, NRC Director of the Division of Reactor Safety for Region 1. The symposium adjourned at 4:20 p.m.

3.0 Summary of Workshop Group Presentations A.

Elements of a cood encineerine organization The two work groups on this subject concluded the following:

1.

There is no single universal engineering organizational structure that is best for all plants.

2.

A good engineering organization must; prioritize its activities from a safety perspective and establish a,

clear lines of responsibility and accountability b.

be responsive to the needs of its customer (operations, maintenance,...)

c.

maintain a well qualified and trained staff d.

maintain a high quality interface with the NRC These working groups did not recommend specific actions for the NRC or the industry groups.

B.

Licensee's actions with degraded conditions inc!nding operabilitv/renortability determinations The three working groups on this subject concluded the following:

1.

Concerns a.

thck of well defined concepts and terms for operability b.

lack of well defined processes for operability determination c.

lack of adequate guidance for the use of engineering judgement in operability determinations 1

5 d,

lack of adequate guidance for reportability 2.

Recommendations a.

NRC establish consistent guidance on operability and reportability (NRC Action item 1) b.

Industry develop design basis standards with NRC endorsement (NRC Action item 2, Industry Action Item 1) c.

Industry establish guidelines for the timeliness for o; ability determinations with NRC endorsement (NRC Action...em 3, Industry Action Item 2) d.

NRC and Industry train their respective personnel in the use of the above guidance (NRC Action item 4, Industry Action item 3)

C.

The modification orocess including 10CFR 50.59 reviews The three working groups on this subject concluded the following:

1.

the modification process including the 50.59 process has been consistently improving 2.

NSAC 105 and NSAC 125 are good industry standards to provide guidance in the design process and the 50.59 review process, respectively Weaknesses 1.

design change process is cumbersome 2.

temporary modifications may be bypassing the modification process 3.

design bases are not adequately defined 4.

control of contracted modification work is not adequate 5.

inadequate prioritization and control of backlog k

v v

s-a v

4

6 Recommendations 1.

NRC and Industry train their respective personnel in the modification process (NRC Action Item 4, Industry Action item 3) 2.

Licensee establish clearly developed design basis documents for each unit using NRC endorsed standards (Industry Action item 4) 3.

Industry define categories of modification with NRC endorsement (NRC Action Item 5, Industry Action Item 5) 4 Industry improve NSAC 125 to provide examples of good 50.59 reviews (Industry Action Item 6) 5.

NRC endorse NSAC 125 for 50.59 review (NRC Action item 6) 6.

Industry establish measures based on safety to prioritize and control backlog of engineering projects (Industry Action item 7) 4.0 Conclusion The symposium had good participation from all its attendees. The majority of the feedback forms received, indicated that the symposium achieved its goals, and promoted and stimulated open discussion between the NRC and the industry. The feedback also encouraged future symposiums in the engineering area. A small minority of participants did not fully agree with all the conclusions of the symposium and they provided alternate conclusions.

I l

l_

9 e

1 ATTACHMENT 1

LIST OF ATTENDEES-A.

Reaion I Licensees higENSEE DOCKET #

LICENSE #

ATTENDEES 1.

BG&E 50-317 DPR-53 Charles Cruse 50-318 DPR-69

-Peter Katz Robert Waskey t

2.

' Boston Edison 50-293 DPR-35 Robert Fairbank Edward Kraft 3.

Conn. Yankee 50-213 DPR-61 Clint Gladding I

Atomic Power Company 5

4.

Consolidated 50-247 DPR-26 Joe Bahr

~

Edison Co.

John Curr i

of NY Mike Lee Pete Szabados 5.

Duquesne Light 50-334 DPR-66 Kenneth E.

Halliday Company 50-412 CPPR-105 Nelson R. Tonet 6.

GPU Nuclear 50-219 DPR-16 Jim Byrne Dave Distet Greg Gurican William Heysek James W. Langenbach Max Nelson i

Ed O'Connor Art Rone a

Richard Skillman l

Patrick Walsh.

J 7.

Long Island 50-322 NPF-19 Ed Pierpont Lighting Co.

8.

Niagara Mohawk 50-220 DPR-63

- Michael-Carson l

-Power Corp.

50-410 NPF-54 Gregory Gresack Rob Oleck 1

Bill Yaeger

9. Northeast Nuclear 50-245

- DPR-21 Michael Bigiarelli i

Energy Company 50-336 DPR-65

- Brendan J.

Duffy l

50-423

-NPF-49 G. Leonard Johnson John S.

Keenan-Edward J. Mroczka 1R. L. McGuinness C. Fred Sears

10. PP&L 50-387 NPF-14 Bob Byram.

t 50-388 NPF-22 F.

G.

Butler

[

W. H. Gulliver 1

J. M. Kenny George ~Kuczynski G.

D. Miller O. P. Parsons

,_..w.,-

y 3,--

--,_y

-.-y

-,_,.-r.

,_y-_4___

3

.,3,

,.,.wy

LICENSEE DOCKET #

LICENSE #

ATTENDEES

11. PECO 50-352 NPF-39 Jim Basilio 50-353 CPPR-107 William Bloomfield Wes Bowers Frank Cook Jack Evans Al Fulvio David Foss Cliff Harmon Dave Helwig Frank Hunt-Marilyn Kray Rod Krich G. Kernahan Dave Meyers Lou Pyrah David Schra Glen Stewart Kevin Walsh
12. Power Authority 50-333 DPR-59 Jerry Gullick of State of NY Terry Herrmann Gus Mavrikis Steve Smith Vic Walz
13. Public Service 50-443 CPPR-135 Terry Harpster of NH 50-444 CPPR-136~

Joe Vargas

14. PSE&G 50-272 DPR-70 Richard Bashall 50-311 DPR-75 Raymond Brown Moises Burzstein Thomas M. Crimmins Scott Gillespie Lee Griffis Bruce Hall Michael Morroni Bruce Preston Martin E. Raps John P. Ronafalvy Frank Thomson
15. Vermont Yankee 50-271 DPR-28 Mark Pallonis Nuclear Power Corp Dean Porter
16. Yankee Atomic 50-029 DPR-3 Peter Anderson Electric Co.

John Hoffman-William Jones Dave King Robert Shone t

George Tsouberous I

x-

B.

Licensees From Other NRC Reaions LICENSEE ATTENDEES 1.

Florida Power Bill Skelley and Light 2.

Toledo Edison Vernon Watson C.

Other Participantq OTHER ATTENDEES 1.

Bechtel Nancy Chapman Steve Routh David Schmit 2.

Westinghouse Rick Eastering 3.

Tenera John Elliott 4.

Massachusetts James McKerheide Nuclear Engineer 5.

General Electric Lee Lantz Nuclear Energy 6.

Stone & Webster Ajoy Banerjee Thomas Bates Marc Boothby Alan Chan Tim Chitester Louis Hirst E.

J. Hubner Tom Szabo 7.

NUS Corp - Florida Michael Johnson Peter S.

Jordan Eric R.

Smith l

D.

The Nuclear Recrulatory CommissiqD QTFICE ATTERpEES 1.

HQ Bob Capra 2.

HQ Jin Chung 3.

HQ Dick Clark 4.

HQ Al DeAgazio 5.

HQ Richard L.

Emch 6.

HQ Mort Fairtile 7.

HQ Bagchi Goutam 8.

HQ Craig C. Harbuck 9.

HQ Gary D. Holahan

10. HQ Chris L. Hoxie
11. HQ Eugene Imbro
12. HQ Jeff Jacobson
13. HQ Wayne Lanning
14. HQ Erasmia Lois
15. HQ Dan Mcdonald
16. HQ James G.

Partlow

17. HQ Uldis Potapovs
18. HQ Mark F.

Reinhart

19. HQ Jim Sniezek
20. HQ John Stolz
21. HQ David L. Wiggington 1.

RII Caudle H.

Julian 2.

RII Francis Jape

3. RIII Mark Ring 4.

RIV Johns Jaudon 1.

RI Scott Barber 2.

RI Walter Baunack 3.

RI Lee Bettenhausen 4.

RI Norman Blumberg 5.

RI Fred Bower 6.

RI Suresh K. Chaudhary 7.

RI Rich Conte 8.

RI Larry Doorfleia 9.

RI Jacque P.

Durr 10 RI P.K.

Eapen

11. RI Harold Eichenholz
12. RI Pete Eselgroth
13. RI E.

Harold Gray

14. RI Harold I. Gregg
15. RI Peter Habighorst
16. RI Sam Hansell
17. RI Donald Haverkamp
18. RI Tom Hiltz
19. RI M. Wayne Hodges
20. RI Kerry Ihnen
21. RI Jon Johnson
22. RI Herbert Kaplan
23. RI Paul Kaufman
24. RI Gene Kelly
25. RI James C.

Linville

26. RI Al Lohmeier
27. RI Thomas T. Martin
28. RI Marie Miller

OFFIQI M IEHQREE

29. RI Dan Moy
30. RI George Napuda - retired
31. RI William Oliveira
32. RI Steve Pindale
33. RI Len Prividy
34. RI John Rogge
35. RI Glenn Tracy
36. RI Ed Wenzinger
37. RI Barry Festreich
38. RI Peter Wilson l

1 l

O ATTACHMENT 2 i

I 1

l 1

l

Symposium / Workshop Engineering's Role In Support Of Plant Activities AGENDA Wednesday, February 20, 1991 12:00 - 12:50 p.m.

Registration 12:50 - 1:00 p.m.

Call to Assembly Harold I. Gregg Senior Reactor Engineer Division of Reactor Safety, RI 1:00 - 1:05 p.m.

Introduction M. Wayne Hodges Director Division of Reactor Safety, RI 1:05 - 1:15 p.m.

Welcome Thomas T. Martin Regional Administrator, RI 1:15 - 1:55 p.m.

Keynote Speaker James H. Sniezek Deputy Executive Director for Operations, NRC 1:55 - 2:35 p.m.

Keynote Speaker Edward J. Mroczka Sr. Vice President Nuclear Engineering and Operations Northeast Utilities 2:35 - 3:00 p.m.

Break 3:00 - 5:00 p.m.

Breakout Sessions Tonic Room Location A.

Elements of a Good Engineering Berwyn Room or Organization Devon Room B.

Licensee's Actions With Gladwyne Room, Degraded Conditions Bryn Mawr Room, or Including Operability /

Hemlock Room Reportability Determinations C.

The Modification Process Radnor Room, Including 10CFR50.59 Reviews Merion Room, or Quaker Room

r 1

?

'I Thursday. February 21, 3221 8:00 - 10:00 a.m.

Breakout Sessions - Refinement of most significant issues Tonic Room Location A.

Elements of a Good Engineering Berwyn Room or Organization Devon Room B.

Licensee's Actions With

.Gladwyne Room, Degraded Conditions Bryn Mawr Room, or Including operability /

Hemlock Room Reportability Determinations C.

The Modification Process Radnor Room, Including 10CFR50.59 Reviews Merion Room, or Keystone-Room 10:00 - 10:30 a.m.

Break 10:30 - 11:30 a.m.

Speaker Michael R. Tresler Engineering Manager, Diablo Canyon Pacific Gas and Electric Company Chairman of Region V-Engineering Managers Forum 11:30 - 1:00 p.m.

Lunch 1:00 - 2:15 p.m.

First Group Breakout Session Facilitators Summary Feedback 2:15 - 2:30 p.m.

Break 2:30 - 3:15 p.m.

Second Group Breakout Session Facilitators Summary Feedback 3:15 - 3:35 p.m.

Wrap-up David R. Helwig Vice President Nuclear Engineering and Services Philadelphia Electric Company-3:35 - 3:55 p.m.

Wrap-up

_Jacque P._Durr Chief, Engineering Branch Division of' Reactor Safety, RI 3:55 4:15 p.m.

Closing Remarks M. Wayne-Hodges Director

)

Division of Reactor Safety, RI i

l

m e

I i

ATTACHMENT 3 l

i

..-._,-.....~..__...

e.

JAMES H. SNIEZEK DEPUTY EXECUTIVE DIRECTOR FOR OPERATIONS, NRC PRESENTATION FOR NRC REGION I - UTILITY SYMPOSIUM / WORKSHOP Engineering's Role in Plant Support February 20 21,1991 Sheraton Valley Forge Ilotel King of Prussia, Pennsylvania 4

4 i

l 1

IMPROVEMENT 0F OP_ERATIONAL_SAEETY R

i t

SAFE ENOUGH ARGUMENT j

6 m

i BACKSLIDE TOWARD INADEQUACY a

i i

PRINCIPLE OF COST EFFECTIVE SAFETY IMPROVEMENT I

a t

i i

l i

I i

i

RESPONSI_BI_L_ITY FOR SAFETY j

i s

UTILITY RESPONSIBLE FOR SAFETY m

NRC IS REGULATOR 1

m NEED FOR NUCLEAR INDUSTRY SAFETY CULTURE i

s TRUST IS FOUNDATION OF NRC/ UTILITY RELATIONSHIP 1

I t

i i

i 1

4

4 RELATIONSHIP WITH UTILITIES P

F

=

LICENSE BASED ON TECHNICAL / MANAGERIAL COMPETENCE

- NRC HANDS OFF, IF TRUE

- NRC ACTIVE INVOLVEMENT, IF NOT TRUE s

NRC EMPHASIS ON COMMUNICATION OF EXPECTATIONS m

UTILITY CERTIFICATION OF PERFORMANCE m

UTILITY RESPONSIBLE FOR SAFETY EVALUATION l

i a

NRC' RESPONSIBLE TO REGULATE

{

i I

RE_GULATORY IMPACT SURVEY _

ESTABLISH MANAGEMENT EXPECTATIONS a

MEASURE IMPLEMENTATION OF MANAGEMENT EXPECTATIONS a

ESTABLISH A STABLE PROCESS a

CONDUCT ACTIVITIES IN A PROFESSIONAL MANNER a

,t

I f

![t l

TNE M

E VO RPM I

G N

1 I

D D

E_

f E

U E

i N_

t N

I F

T A

L S

T N

S A

A N

o I

E E

c_

E C

R M

(

C I

A S

N F

S Y

A E

N E

E H

N O

S V

N E

S R

E B

D A

US_

E Y

T S

F L

S U

L T

R O

C E

C A

C O

S A

E F

P L

E T

M C

B E

N I

B E

D D

M Y

L L

D E

R U

U L

G O

O O

U A

T H

H O

N A

S S

H A

L U_

S M

S S

G E

E S

A E_

I I

E R

T T

C T

I I

R C

V V

U U

I I

O D

T T

S N

C C

E O

A A

R C

a e

a a

l 4

l!tll 4

INSPECTION PRINCIPLES INSPECTORS NEED TO ALWAYS BE ALERT FOR SAFETY ISSUES -- EVEN THOSE s

OUTSIDE THEIR AREA 0F EXPERTISE a

PRIMARY EMPHASIS IS ON SAFETY WITH THE RECOGNITION THAT NRC REQUIREMENTS ARE SUPPOSED TO BE MET REGARDLESS OF SAFETY IMPORTANCE

. DEGREE OF REACTION / RESPONSE BY INSPECTORS DICTATED BY SAFETY a

IMPORTANCE ACCEPTANCE CRITERIA ARE BASED ON AGENCYWIDE POSITIONS, NOT ON a

INDIVIDUAL REVIEWER / INSPECTOR DESIRES

i i

INSPECTION' PRINCIPLES i

PERFORMANCE INDICATORS ARE USED TO HELP DETERMINE DIRECTION, SCOPE l

s AND DEPTH OF INSPECTION EFFORT AND ARE NOT'A DISPOSITIVE MEASURE l

i 0F PERFORMANCE BY THEMSELVES

]

a ANAlfSIS OF MANAGEMENT EFFECTIVENESS IS BASED ON RESULTS OF MANAGEMENT EFFORTS AND NOT ON ANALYSIS OF

SKILLS, STYLES OR i

POPULARITY FOCUS OF INSPECTION IS PRIMARILY ON END PRODUCT; HOWEVER, PROCESS s

OF ENSURING QUALITY ALSO IMPORTANT IN ORDER TO ENSURE CONSISTENT l

QUALITY 1

i I

l 4

l INSPECTION PRINCIPLES l

t r

i a

STANDARDS OF PROFESSIONALISM 0F INSPECTORS EXCEED THE STANDARDS EXPECTED-OF LICENSEE PERSONNEL l

a APPLICATION OF REGULATORY EXPECTATIONS IS CONSISTENT FROM INSPECTOR

.j TO INSPECTOR AND FROM PLANT TO PLANT l

s INSPECTION APPROACH AND TECHNIQUES ARE SUCH THAT INSPECTOR AND l

LICENSEE TIME ARE EFFECTIVELY USED I

i 4

s INSPECTORS ARE QUALIFIED COMMENSURATE WITH DIFFICULTY OF TASK l

t i

i i

INSPECTICH PRINCIPLES i

INSPECTION FINDINGS ARE ACCURATELY AND PROMPTLY COMMUNICATED TO e

APPROPRIATE LEVELS OF UTILITY MANAGEMENT BOTH DURING AND AT THE END OF THE INSPECTION

=

INSPECTION ACTIVITIES APPROPRIATELY RECOGNIZE THE EFFORTS OF INDUSTRY SELF-EVALUATION ORGANIZATIONS SUCH AS INP0 AND DO NOT INTERFERE WITH THE LICENSEE /SELF-EVALUATION ORGANIZATION INTERFACE NRC MANAGEMENT.IS PROMPTLY INVOLVED WHEN FUNDAMENTAL DIFFERENCES a

CANNOT BE RESOLVED BETWEEN INSPECTOR AND LICENSEE

l INSPECTION PRINCIPLES IN PLANT SOURCES OF INFORMATION ARE GUARDED IN ORDER TO PRO a

FREE EXCHANGE BETWEEN STAFF AND INSPECTORS a

COMMUNICATIONS ABOUT THE LICENSEE OR LICENSEE PERSONNEL ARE CONTAINED WITHIN THE REGULATORY FRAMEWORK l

BE RECEPTIVE TO ALL ALLEGATIONS AND TREAT. ALL PUBLIC INQUIRIE

.m RESPECT AND PROFESSIONAL RESPONSE INSPECTORS MUST GENERATE AN AURA 0F INDEPENDENCE IN ALL DEAL a

WITH THE LICENSEE l

_SU_MMARY MOST NRC/ UTILITY INTERFACES ARE POSITIVE

=

INTERFACES MUST BE STRAIGHTFORWARD AND HONEST a

RESULT IN EFFECTIVE AND EFFICIENT SAFETY PROGRAMS

=

GREATER NRC EMPHASIS ON PROPER INTERFACES IN THE FUTURE a

i

4 The Engineering Role In Plant Support E. J. Mroczka Senior Vice President Nuclear Engineering and Operations Northeast Utilities i

NRC Region I Workshop i

4 February 20-21, 1991 l

a i

[

=

i i

i t

"NRC PRINCIPLES OF GOOD REGULATION" i

t Independence i

Openness Efficiency Clarity Reliability e

l l

i i

4 4

l 4

{

I

I i

INDEPENDENCE o

"Nothing but the highest possible standards of ethical performance and professionalism should influence regulation.

However, independence does not imply isolation.

o All Lavailable facts and opinions must be sought openly o

from licensees and other interested members of the public.

The many and possibly conflicting public interests o

involved must be considered.

Final decisions must be based on objective, unbiased o

e assessments of all information, and must be documented with. reasons. explicitly stated."

I

l

-s i

OPENNESS o

" Nuclear regulation is the public's business, and it must be transacted publicly and candidly.

o The public must be informed about and have the opportunity to participate in the regulatory process as required by law.

i 4

o Open channels of communication must be maintained with Congress, other government agencies, licensees, and the public, as well as with the international nuclear community."

1 i

I

?

EFFICIENCY i

l o

"The American

taxpayer, the rate-paying
consumer, and l

licensees are all entitled to the best possible management and administration of regulatory activitics.

o The. highest technical and managerial competence is required and must be a constant agency goal.

NRC must establish means to evaluate and continually o

upgrade its regulatory capabilities.

Regulatory activities should be consistent with the. degree o

of risk reduction they achieve.

Where several effective alternatives are available, the o

option which minimizes the use of resources should be adopted.

Regulatory decisions should be made without' undue delay."

o

l r

ISTEGRATED REGULATORY REQUIREMEh7'S IMPLEMENTATION SCHEDULE j

\\

"IRRIS provides a simple mechanism that will o

f encourage implementation of plant modifications offermg tne most safety for resources spent, i

t help to evaluate and set balanced priorities for an o

entire set of pending requirements; and help to avoid duplication of efforts to enhance o

safety."

SECY-90-347 r

l t

I

^

t 1

CLARITY 1

" Regulations should be coherent, logical, and practical.

o o There should be a clear nexus between regulations and agency goals and objectives whether explicitly or implicitly stated.

l l

Agency positions should be readily understood and easily o

applied."

I 1

i I

i

^

i i,

i

[

i 2

i I

I

.l

.I i

i REPORTABILITY' NRC Guidance Should be Consistent Prompt Reports (10CFR 50.72) l Licensee Event Reports (10CFR 50.73) f i

t Inspection and Enforcement Should be Consistent j

Inspector to Inspector Region to Region j

i l

Degraded Conditions, Operability Determinations, and JCO's Terminology and Requirements j

need to be worked out.

l l

More Rewards for Self Assessment j

a i

l L -

i l'

i I

)

RELIABILITY I

J 1

" Regulations should be based on the best available j

o knowledge from research and operational experience.

f i

4 o

Systems interactions, technological uncertainties, and the diversity of licensees and regulatory activities must all bc taken into account so that risks are maintained at an acceptably low level.

t i

i o

Once established, regulation should be perceived to be j

[

reliable and not unjustifiably in a state of transition.

l Regulatory actions should always be fully consistent with o

l written regulations and should be promptly, fairly, and i

decisively administered so as to lend stability to the

[

I I

nuclear operational and planning processes."

l' 4

i I

f 1

l

i.

I i

CONCLUSIONS

/

l "NRC PRINCIPLES OF GOOD REGULATION" t

are also l

Good Principles for Engineering Support i

i Independence i

l Openness i

Efficiency Clarity Reliability l

NRC and Licensees Working Together as Professionals l

i

~

i I

REGION V ff f

f fff ENGINEERING MANAGERS ENGINEERING SYREPOSNJlnt 4

i i

i REGION V ENGINEERING

\\

l MANAGERS FORUM

\\

i 4

i Mike Tresler

\\

Diablo Canyon Power Plant - PG&E

}

Engineering, Manager l

Room A1400 t

333 Market Street San Francisco, CA 94106 C-

"l% " l -a REGION 5 ENGINEERING NANAGERS NANAGERS' FORUM l

BACKGROUhD l

e SCE SSFI l

e Membership

\\

  • PGE 4

i

  • PG&E
  • SCE i

l

  • SMuo i
  • WPPS PURPOSE l

e Meet Quarterly e Shared Knowledge / Expenence e Unified Position / Working Task Forces l

e Improve Communication l

j 1

l i

REGION V "ML"M TASK COMPLETED FORUM i

l I

l e Charter

)

l e DBD Guide O Proactive Engineering Guide

?

e Design Engineer Training &

i I

Qualification Guide I

j e Management Of Low Priority j

l Engineering Tasks Guide e Procurement Engineering Guide

\\

1

~

1

i REGION V l

ENGINEERING i

i

%;;:e"'

PROCUREMENT GUIDELINE :l

i j,

l !

1!

e Tech. Eval. Of Supplier Qual. / Deficiencies

\\

e Spare / Replacement Configuration Control

}

e Performance History CGD 4

i i

O Commercial Grade Survey

  • i O Location Specific Components

\\

O Detection Of Fraudulent Materials

  • i i

l l

O Information Exchange i

..i REGION V l

E14GINEERING

""' ACTIVE SURC0&EEETTTEES !!

l l

1 i

i 4

i l

e Engineering Task Prioritization 1

i t

l e Set Points i

t l

i i

{

\\

=.

i

i

- )

i i

T i

8 REGION V f

ENGINEERING MANAGERS SUBCONNITTEES t

1 i

j e Performance Monitoring e Design Process e System Walkdowns i

e Operability 1

i l

e Procedure Review r

)

~

3 "MM BENEFITS TO DATE i

REGION V FORUM 0 Budget / Staffing l

e Leak Repair (90-05) 4 i

e EDSFI I

l l

  • Setpoints
  • ADV's e INPO / NRC Support l

e issue Definition / Containment i

l e Shared Experience At AII Levels j

J,

~

I 3

9"=~;,,-

^

%~

LESSONS LEARNED

}

e Conflicting Demand On Time L

e Top Level Participation In Task Forces e Tension Between " Set Ways" And New Guidance 1

O Documents Must Be Useful & Used

\\

l i

e Variability In D.E. Org., Staffing, i

i Capability And Responsibility

=.

\\

)

(

{

REGION V l

ENGINEERING l

l FUTURE i

\\

e Add Plant To Membership i

j e Excellent Point of Reference

(

e " Tips" On Latest NRC Concems,

\\

j Perspectives & Positions i

l i

I e United Position On Critical Issues l

l 1

e General Mutual Support i

Environment i

1 i

~

L

a

.__m S

0 ATTACHMENT 4 l

~ _ _ _ _. _ _ _.. _. _ _. _ _.. _ _ _. _ _ _ _ _ _ _ _ _ _ _ _

I j

ELEMENTS OF A GOOD ENGINEERING ORGANIZATION Group 1:

Facilitators Ed Wenzinger (NRC), Tom Crimmins (PSE&G)

Industry participants: 16, NRC participants: 5 Four key issitu a.

priorities (19) b.

responsiveness (15) 4 c.

people (8) d.

NRC interface (7)

Good encineering organizations prioritize plan effectivr.ly allocate resources to their work EJements a.

I meterm planning b.

priorities setting how and who c.

emergent work l

d.

forced outage plan e,

orderliness vs chaos i

f.

communication enhanced g.

show proactive nature h.

balance long term and short term Good engineering organizations are responsive to the needs of operations, maintenance, and day to day activities Elements l

a.

mission clarity b.

physical involvement c.

joint planning / priorities d.

balance reactive and proactive e.

communications, communications, communications f.

key to maintaining design quality and configuration g.

ops and maint, understanding of basis for and demands of the design h.

balance engineering / design perspective and operations perspective Good engineering organizations maintain a high quality interface with the NRC

...-- -v

...-..*,-,,,w-..--m-m.---

,e,-

-,r--:

.r..

,r+-,

..r,..

www i,

-,-,,.,,-vce-.--,v-

Group 1 2

I!1ements a.

technical competence b.

proactive assertive engineering c.

communications listen d.

quality of process / product e.

NRC acceptance of acceptable solution f.

escalate professional differences l

i 4

I j

3 Group 2:

Facilitators 11arold Gray (NRC) Fred Sears (Northeast Utilities)

Industry participants: 14, NRC participants: 5 i

Eaetors for consideration a.

there is no single, universal engineering structure or organization that is best for all i

plants b.

whatever the organization is, it must be clearly defined with respect to responsibilities and accountabihties Attributes a,

continual improvement b.

economical operation c.

common goals d.

teamwork a

c.

effective self assessment f.

conformance to requirements i

g.

well defined, available, usable design basis h.

configuration management i

1.

lessons learned application J.

new technology usage 1

k.

customer satisfaction Englacering concerns "oroblems" i

a.

LTA Design llasis documentation and organization b.

Resource Management 1.

conflicting goals and priorities both internal and external 2.

NRC interface team inspections 3.

off normal support c.

Ineffective Processes - internal and external d.

Plant Materials obsolescence, aging, vetip (vendors), OEM demise / dedication Solutions a.

mission j

b.

strategies c.

responsibilities d,

plans, schedules, priorities, resources communications, education, sharing c.

f.

decision tools g,

staff training, development h.

cultivate positive NRC/ utility relation

...E

-.EAm

.-,-.w-,.,.,

emer.-,.,v,,w,-w-...m-,ry.., _,,....,-.

  1. e,,

.-#,.,n w.,_

,,.,w,

-,.,-v.c.,,.,

.%y-,

-=wer--

e.,w

.-r.--vwu_-..

Group 2 4

Conclusions a.

no single definition of engineering b.

consider all with engineering or science background and those performing in technical roles to be part of engineering c.

solutions of engineering concerns can be reached by good management practices, including consideration of mission strategies responsibilities - accountability, plan, schedule, train, educate d.

the functions of good engineering are many, but the intent is la[g, reliable, economical plant operation.

a 1

5 OPERABILITY /REPORTABILITY DETERMINATIONS AND DEGRADED CONDITIONS Group 1:

Facilitators - Jon Johnson (NRC), Wes Bowers (PECO)

Industry participants: 14, NRC participants: 8 Q.

How does licensee know or determine operability and reportability?

A.

When there is iufficient evidence or basis that a component or system meets its design safety function (s) including operation under prescribed accident conditions. The determination must be made in a timely manner.

What is suf6cient evidence?

hius Recommendation / solution y&g lack of guidance revise NRC inspection manual NRC on operability to provide improved determinations guidance; transmit manual to licensees lack of guidance finish owners group BWROG on reportability guidance on reportability; transmit manual to NRC develop improved guidance NRC on reportability What is design bases?

hius Recommendation /solutiDD Who design bases publish design bases standard utility is unbounded including guidance and and component level NRC endorse refine and clarify WRT safety function clarify functional capabilities clarify MGI clarify difference (if any) operability between design bases for or reportability operability (T.S) and reportability (50.72, 50.73)

... a.

Group 1 6

Timeliness of onerability determinations buts Recommendation / solution Who unclear process use a two step process utility /INPO (accountability

1. screen (operability priority) determination) and
2. F/U analysis refine timeliness publish / endorse guidance NRC/NUMARC guidance use STS LCO action times

- use IPE/PRA to prioritize lack of knowledge /

train engineering support utilityilNPO sensitivity to staff timeliness needs Succestions for improved cuidance for onerability clarify that the following can be used

- engineering judgement

- test results

- analysis compensatory action operatir experience

- operatito parameters

- current pilysical condition clarify that PRA cannot be used clarify that unavailability of component not required for safety function does not make system unavailable consider NUMARC guidance on design basis definition and examples

7 Group 2:

Facilitators Rich Conte (NRC), Bob Byram (PP&L)

Industry participants: 13, NRC participants: 8 format open forum

- aired concerns focused on positive aspects selected four key concerns positive aspects into process objectives focused on key concerns Objectives assurance of nuclear safety

- clertr expectations

- communication / action on generic conditions efficient and effective

- mutually agreeable

- eng. involvement in operability /reportability clear and consistent

- promote initiative / action foster questioning attitude

- training and development

- strengthen design documentation

- work on what's important

- enhance safety cultures that are assumed to satisfy regulatory expectations

- sensitivity to real needs of operator Onerabilitv/Reportability mqior concerns a.

define concepts and terms on operability b.

define the process for operability determinations c.

use of engineering judgement Aside issue - Reportability l

groups discussion focus was on operability issue a.

l b.

group generally agreed 1.

reportability criteria not to be discussed - residual issues exist but are being dealt with 2.

reportability criteria should remain separate and distinct from operability criteria but properly sequenced with operability determinations

Group 2 8

Major concern No.1 Define conceots and tttms a.

operability degraded condition workability JCO/BCO capable of perf functionality l

qualification design basis l

timeliness b.

distinguish pcttulated events (how far do you go) versus current configuration events (normal conditions) c.

avoid determinations of inoperability because of lack of documentation d.

once defined as above, distinguish workability verst s functionality and/or 3perability versus qualification Major concem No. 2 - Define the process administrative procedure to address operability determinations (including organization a.

roles and responsibilities) should be left to licensee initiative b.

let (responsibility not defined by group) establish process criteria which focus on:

timeliness, prioritization, quality of documentation, etc. (h're again licensee initiative) although the NRC says that the pending guidance contains no new requirements c.

(reports / records procedures), the reality is the opposite because of licensee initiative to establish controls Major concern No. 3 - Use of engineering judgement a.

recognize its use as variable but viable b,

document the thought process for the engineering judgement c.

encourage people to think d.

demonstrate competence in applying engineering judgement e,

make engineers responsible and accountable for the above f.

initial through final stages of operability determination - how is engineering judgement to be applied l

..--v,-,7------,_.v-r, y

..m-.-

--r__,--

....,,.y.,

w.---.,-.w...<w--

]

i Group 2 9

1 Summary 1

a.

disseminate information

1. pending guidance 2, this conference b.

industry interaction at working level e.

focus on expectation as opposed to prescriptive guidance I

a P

+

7 i

L

...,...-,____,.,m....

10 Group 3 Facilitators - Lee Bettenhausen (NRC), Bruce Preston (PSE&O)

Industry participants: 13, NRC participants: 10 What value/ criteria do you use for operability determinations - design /purcha:e specs - design basis licensing basis (FSAR, SER, LC, etc.), or safety limit basis (2200^F, containment pressure, etc.)?

1.

technical specification values must be used if available 2.

10CFR safety limits 3.

Other -

example:

containment fan coil units BTU capacity being tested - is tech spec operability based on 1.

purchase spec - design? 100K 2.

FSAR 80K 3.

Ultimate safety limit - i.e., containment pressure 60K can current conditions be used also -i.e., river watu emp the.. Wk) -

yes Operable - ASME code versus tech spec operability numns and valves 1.

GL 89 04 directs that device is inoperable if test results are in action range -

appropriate tech spec LCO should be entered (basis degradation cause unknown, device could fail immediately) 2.

ASME section XI allows for analysis to change action range value using 50.59, maintaining component operable per tech specs (i.e., enter LCO, do analysis, exit LCO)

DIDC section III, class 3 and B31.1 - a thru wall leak of below minimum wall condition does not automatically equate to an inoperable condition (i.e., analysis of flow and structural impact using LCO time as a marker)

Appendix R, EQ, electrical separation discrepancies versus operability:

l i

Group 3 11 Qualification problems such as these generally nel operability problems electrical separation problem does not necessarily call for assveiated equipment to be inoperable Appendix R equipment still operable but compensatory actions to deal with fire need to be taken operability an issue if accident causes failure and loss of emergency function Timeliness of operability calls no new NRC regulations utility develops written policy; elements include:

prompt initial screen by knowledgeable group a.

b, timeliness commensurate with safety significance and plant conditions; tools:

PRA, LCO action statements detailed evaluation to support initial screen decision within time bounds, e.g.,

c.

3 days How should operability guidance be promulgated?

1.

NRC incorporate in inspection manual and by generic letter (in progress) 2.

NUMARC/INPO take initiative for industry guidance, e.g., NSAC (need next month) 3.

plant unique progre

.vith region buy in 4.

NUREG or regulatt guide for utility to construct program 5.

do nothing The group favors #2

12 MODIFICATION PROCESS INCLUDING 50.59 REVIEWS Group 1 Facilitators - P. K. Eapen (NRC), Nelson Tor.ct (DLC)

Utility participants: 6, NRC participants: 6 Djscussion tonics 1.

50.59 review process 2.

temporary modification process 3.

design change process

- reviewed strengths and weaknesses

- developed recommendations for improvement 1.

50.59 review process strengths NSAC 125 effective resource utilization weaknesses needs standards needs guidelines for results lacks cot stent training required recommendations / comments good DBD, reduce potential for inadequate safety reviews improve NSAC 125 with samples of adequate / good evaluations for short term utility should develop standards individually enhance NRC inspector training 2.

temnorary modification nrocess strengths timely and effective utilization can help to keep the plant safe provides more effective utilization of resources

r Group 1 13 weaknesses can bypass modification process challenges contiguration control reviews may lack detail can become numbers game recommendations / comments better defme maintenance vs mod upfront good DBDs needed to properly manage process 3.

design change process strengths controlled process inaintains DBDs controls plant configuration

- weaknesses process perceived as cumbersome potential AE or contractor interface problem daily plant support may detract potentially excessive reviews performed recommendations / comments 1

DBDs essential to be successful integrated living schedule provides for effective backlog control regulators / inspectors need better training to understand processes Conclusions design change process continues to imp ove further training needed NSAC 125 enhancements could be beneficial effective screening is necessary integrated scheduling can provide more effective resource management

-. -~_

14 Group 2 Facilitators - Jim Linville (NRC), Bill Yaeger (Niagara Mohawk)

Industry participants: 7, NRC participants: 4 Strengths of 50.59 orocess there has been a significant improvement in safety as a result of the 50.59 process 50.59 process has improved greatly in the last few years. It is more substantial and better documented. Less perfunctory NSAC 125 and design basis reconstitution have contributed significantly to these improvements 50.59 process appears to work well for major modifications Maior problem areas difficulty in applying 50.59 process to the modi 6 cation process commensurate with the nature of the modification major modi 6 cations minor modifications temporary modifications (including electrical jumpers and lifted leads) generic modifications design equivalent changes non-safety related systems GMls maximize safety minimize resource impact Recommendations for industry clearly define modification categories and which parts of the review process are applicable in order to minimize resource impact develop screening process similar to that suggested in NSAC 125 establish well developed design basis establish generic processes to the extent possible 4

Recommendations for NRC publish a position on the acceptability of NSAC 125 Establish clear staff guidance on application of position train NRC staff on application of guidance manage inspection and enforcement of guidance to provide consistent application with focus on potentially safety significant oversights i

j

15 Group 3 Facilitators - Gene Kelly (NRC), Charles Cruse (BG&E)

Industry participants: 10, NRC participants: 4 Sirengths 50.59 gives flexibility to utility good 50.59 process helps clarify design basis 50.59 process gives engineering a better understanding of design basis 50.59 process fosters well documented and assessable design basis NSAC 125 fills long standing void 50.59 enables integrated multi disciplinary review 50.59 process started early helps provide design framework Concerns /oroblems (in orioriti7ed order) what is the safety analysis report (scope, detail, referenced documents) does 50.59 apply to as found, design basis reconstitution " findings"

" changes" - where do they end? How far should 50.59 be applied?

distinction between licensing and design bases threshold for " temporary" modifications distinction between safety related and important to safety (and definition of the latter)

NSAC 125 "in progress" change clarity 50.59 review of procedure changes scope / criteria for " screening" processes measures of 50.59/ modification effectiveness Erebjpm 1 - what is SAR?

recommendations provide guidance on whether emergency plan, environmental report, and like documents are part of the SAR management meeting between NRC and utilities (NUMARC) incorporate guidance in NSAC 125 delete items not important to safety from SAR add documents clarifying " licensing basis" to next SAR update (SERs, GL responses)

Problem 2 - does 50.59 orocess apolv to "as found" desien problems (desien basis reconstitution) 50.59 process deg.s apply to "as found" design problems develop " tiger team" of small dedicated engineering / licensing group to address "as found" design problems - use screening process

- - ~ _

Group 3 16 Problem 3 - how far should 50.59 process be applied?

resolve problem 1 (SAR question) clarify need for 50,59 process procedure changes temporary mods long term equipment outages (silent mods)-

develop screening process provide training on screening criteria j

add step at end of mod process to perform self assessment of 50.59 process Conclusions NSAC 125 is a good start but it need additional clarity what is SAR temporary mods procedure changes in progress work definition of important to safety

\\

l

a e-g UNITsD 8TATss

[

q NUCLEAR REQULATORY COMMIS$10N t

WA4HIN470N, D, c. 94868 k "i November g.1990 Mr. William H. Rasin Director, Technical Division 6

Nuclear Management and Resources Council Suite 300 1776 Eye Street N.W.

i Washington,DC 20006 2496 i

Dear Mr. Rasin We have reviewed the " Design Basis program Guidelines' developed by the Nuclear Management and Resources Council (NUMARC) forwarded to us by NUMRC's letters of May 16, July 2 and October 17,he developsunt of the guidelines.- We no 1990 We appreciated the opportunity to interface with your staff during t that your staff was responsive to the coments and concerns that the U.S. Nuclear Regulatory Coemission (NRC) staff expressed during the development of the guidelines.

We believe that MVKARC's approach will provide a useful frasework and worth-while insights to those utilities undertaking design basis programs of various scopes. We share your view that no single best approach exists for a design basis program. We understand that utilities must often address unique situa-tions. Thervrore, a variety of approaches can satisfy the basic need to develop a centralized location for design bases information that emphasizes the design intent and provides an index to important design documentation.

It is important to stress that a facility should not be modified unless sufficient information is available to demonstrate that adequate design margins will be maintained.

We believe that Section Y! of the guidelines regarding validation of the facility against current design information is of particular immrtance. The goal of any design reconstitution program should be to establisi confidence that the existing facility is in accordance with the current design documents and that any deviations are reconciled.

The Enclosure susinarizes our thoughts on several areas that the NLMARC guidelines do not address extensively. You may want to consider issuing further NUMARC guidance in these areas as you receive responses from utilities on use of the guidelines.

In the near future, the NRC will issue a NUREG document containing perspectives-on utility design control programs and design document reconstitution programs gained from a survey of the programs of six licensees and one nuclear steam supply system vcndor. The NURE6 document will contain factual information regarding programs as they were being implemented at that time and will des.

cribe program strengths and weaknesses and problems enc 9untered by stilities.

\\

L

.. S D.-.

[

November 9, 1990 Mr. William H. Rasin.

We view your development of the " Design Basis Program Guidelines" to be a positive step in an area that will continue to be of great importance, Sincerely, Original signed by:

William T. Russell, Associate Director for Inspection and Technical Assessment Office of Nuclear Reactor Regulation

Enclosure:

NRC Observations of Design Document Reconstitution Programs Distribution:

JMTaylor, ED0 JH$niezek EDO HLThompson, EDO JLBlaha,E00 ELJordan, AEOD JLieberman,OE TEMurleyl NRR FJMiraglia, NRR NRR WTRussel JGPartlow NRR FPGillesple NRR DitCrutchfleid.NRR CD5ryre, NRR JERichardson NRR CERossi, NRR BKGrimes NRA BDLiaw, NRR WDLanning NRR EVImbro, NRR RAGramm NRR NRR

PFMcKee, EWBrach,NRR ETTana NRR-5483 HCBridgers E00 5483 MXMcA1}ister, NRR 5483 TTHartin,kl MWNodges RI SDEbneter RI!

AFGibson, RII ABDavis,k!!!

HJMiller, RIII RDMartin, RIV LJCallan, RIY 08 Martin, RV RF21surman,RV Central Files q

PDR ED0 R/F i

DRIS R/F R$1B R/F 1

  • See srevious concurrence M~

RSIB:)RIS SC RSIB:DRIS C:Pa 15 D:2 ADT NRR MAH111er*:bt EVImbro*

W L4 ing Tech E BJtS i WTRussell 10/15/90 10/15/90 1,/ /90 10/17/90 1(/f/90 1p/(/90 8" \\'?

5+ W1 bysk LL e m/n %

gh cr

E E OSURE flRC Coements on Design Document Reconstitution Programs (1) Temolate Approach Thedesigndocumentreconstitution(DDR)processshouldresultinconfi-dance that sufficient design documentation is available (a) to verify the implementation of the design bases, (b) to provide justification that key design parameters, such as the pump net positive suction head, are ade-and (c) to ensure that a structure quately accounted for in the design system, or component (SSC) will perform its intended safety function, dne approach to developing a system or topical design bases document is to l

first identify a template of design parameters. Such a template would (a) establish and define the functionality and operability requirements ofSSCs,(b)demonstratetheconformanceofSSCstothedesignbases,and (c) demonstrate that $$Cs will perform their intended safety functions.

A review could then be performed to establish the degree to which tha e

available design documents support the parameters defined in the template.

This process would identify areas that require additional design docur.entation.

(2) Design 0ocument Technical Review The design document reconstitution program should include a technical review of the supporting design parameters design calculations, and analyses. This technical review would verify that the design documents I

are technically sound and consistent with the as-built facility. The available design documents should be reviewed to identify areas where design information is technically inadequate or not consistent with the as built facility.

(3) Concept _of Essential Desian Documents In performing a design document reconstitution program certain design documents will probably be unretrievable or will contaIn inconsistencies.

While the NRC does not advocate the regeneration of the complete set of design documents, it is important that certain design documents are available to support plant operation.

The design documents in this set will be referred to as the ' essential design documents" and are further defined as Category I herein. All Category I design documents must be

-accurate, and tiose that are unretrieva>1e need to be regenerated.

Category I design documents are those documents that are necessary to sup1 ort or den,cnstrate the conservatism of technical specification values, suci as pump flow calculations or setpoint calculations. Additional design documents included in Category I would be those necessary for (a)engineeringorganizationstouseinsupportingplantoperationsand (b) the operators to use in quickly responding to events. Examples of Category I documents include, but are not Itmited to, electrical load 9

4g 1

e fuse lists, breaker instrum nt lists,ing and instrumenta-setpoint lists valve lists lists,Q-lists,dieselgeneratorlo,adsequencing pip tion. diagrams,flowdiagrams,electricalsinglelinediagramsandschest-

lists, its, and breaker and fuse coordination studies.

(4) Prioritization of Missing or inadeauste DocuM nts Use of a prioritization methodology in considering whether to regenerate missing or deficient documents can ensure that the licenset foc6es l

resources on the more safety significant items in a timely manner. An initial screening process would enable the licensee to detsrzine the significance, effect on plant operability, and reportability requirements related to the missing or inadequate documentation.

One way to rank the importance of design documents according to safety significance is as follows:

Category 1 - Design documentation that supports or defines technical specification safety limits, limiting conditions for operation, limiting safety system setpoints or surveillance requirements. These documents i

cas.onstrate that the 55Cs addressed by technical specifications will perform their active safety functions.

Category 11 - Design documentation that defines controlling parameters or demonstrates the active functionality of safety-related SSCs that are not explicitly addressed by the technical specifications, but that support the

$$cs addressed by technical specifications such as heating, ventilating, ar.d air conditioning systems.

Category III - Design documentation that defines controlling parameters or demonstrates ective functionality of safety related S$Cs not included in Categories I or II.

Category IV - Design documentation that defines controlling parameters or demonstrates the functionality of safety related 55Cs with regard to passiveconsiderations(e.g.,seismicconsiderations).

Category V - Design documentation that demonstrates the design of non safety 55Cs is such that its failure would not impair the functionality of safety-related 55Cs (e.g., seismic II/I considerations).

l (5) Design Bases vs. Desian Document Reconstitution-Reestablishment of the design bases without reconstitution of the support-j ing essential design documents may not provide a sufficient amount of information to support future modifications and current plant operation.

The objective of a DDR program is to establish a continuity among tho various levels of desion information (e.g., design calculations and design bases documents) and w' th the physical plant characteristics of the facility. The DDR program should ensure that the design bases documents accurately reflect the source design documents, the design output docu-ments accurately reflect the design bases, and the plant configuration is 9

in accordance with the design output documents.

A 6

e

This information requiring document reconstitution can be evaluated in relation to the document categories, as defined herein. The NRC considers that all Category I essential documents that are inaccurate, unretrievable, or not yet produced should be regenerated in an expeditious manner.

However, a licensee Bay be able to generate test data er USe othkr means to establish a high level of confidence that the systesi can fulfill. its safety functions.

If so, then the licensee may be able to schedule the regeneration of the Category I document in a period of time commensurate with its evaluated safety significance.

A licensee my not need to regenerate design documents for Categories !!

through Y if other supporting information or test data is available to demonstrate that an $5C can perform its intended safety function. For example, it my not be necessary to regenerate all missing pipe support it cah be calculations if, based on reanalysis of a sufficient sample,f a demonstrated that adequate design margins exist. However,i todification is proposed that would affect a pipe support, it would have to be reanalyzed if a valid analysis did not exist.

It is important to stress that a facility should not be modified unless sufficient information is available to demonstrate that adequate design Therefore all aissing calculations or design u rgins will be maintained.

documents necessary to support a modification aust be regenerated to establish a point of departure for the proposed modification and to quantify the design margin available following the proposed installation of the modification, i

I l

i l

i 6

&Qk i

i 3

u i

. -.