ML19332D130

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Forwards Response to Generic Ltr 89-21, Request for Info Re Status of Implementation of USI Requirements. Action on USI A-9 Re ATWS Will Be Completed During Refuel 7 Scheduled During Mar 1990
ML19332D130
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 11/24/1989
From: Widell R
FLORIDA POWER CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-GTECI-A-09, REF-GTECI-SY, TASK-***, TASK-A-09, TASK-A-9, TASK-OR 3F1189-18, GL-89-21, NUDOCS 8911300052
Download: ML19332D130 (10)


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/ November-24, 1989-  :

'3F1189-18 i 4

'U.S. Nuclear Regulatory Commission .

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Attn: Document. Control' Desk i Washington, D.C. 20555 -

Subject:

Crystal' River Unit 3  ;

,' l Docket'.No. 50-302 .,

operating' License No. DPR-72 Response,to' Generic.. Letter'89-21 ,

1

Dear' Sir:

~

- Floridai- Power Corporation ~(FPC) hereby submits its response . to- S

> Generic Letter! 89-21 " Request' for Information Concerningl Status of c ,

' Implementation of. Unresolved Safety Issues' (USI)' Requirements". The .

L . response contains1the current status of-FPC's implementation on-N each!USIlfor which the-NRC has achieved a technical resolution.

Attached.to-this cover.. letter.is aJreproduction of Enclosure 1 to

@- ' Generic Letter 89-21 with the current FPC status indicated for each

item. ; Attachment 2Lcontains plant specific'information on the FPC q '

-5 efforts 'on these items. ' The' information provided in this submittal-L is.for information purposes only and does not; represent.any new or- i

[ revised commitments.

Should you~have any questions, please. contact this office.

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$;; sincerely, r,

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[1gf,-- 'Rolf'C. Widell,. Director "

1o n Nuclear Operations-Site Support

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USI/fRA Inm8ER TITLE REF. DOCUP0tT APPliCA8fLITY STATUS /DATE* REM 4RES

A-7/ Mark I Long-Tern NUREG-0661 Mark T-8WR m Program NUREG-0661 Sepp 1. 1 l D-01 i

GL 79-57 A-8 Mark II Con eainment NUREG-0908 Mark _Il-80m ,

i Peel Dynaefc Loads NUREG-0487, Suppl. 1/2 l

i NUREG-0802

! SRP 6.2.'I.1C i

GDC 16

A-9 Anticipated Transients NUREG-0460, Vol. 4 All I /neroet 7 i i

- W1thout Scram 10 CFP Lt.32 (03/90)

MSEG-0619 8WR m i A-10/ BWR Feedvater Nozzle MPA B-25 Cracking Letter from DG Eisenhec

! dated 11/13/80 GL 81-11 A-11 Reac+or Vessel Material NUREG-0744, Rev. I A11 c /o4/30/ss l

Tou9hness 10 C m 50.60/

82-26 h NUREG-0577, Rev. I P:.7 m A-12 Fracture Toughness of i Steam Generator and SRP Nevision Reactor Coolant Pump 5.3.4

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l Suppor's i' j ttr: DeYoung 'o A11 ,f,, ,,,,,,,,,,,,

A-17 Systems Interact 1ons ficensees - 9/7<.
! NUREC-1174, MSEC-i 1229. NUREG/CW-3922, NUREG/CR-a?61. NUPEG/

l CR-4470 GL 89-13 (No requ1raments) i MREG-0588 Rev.1 All I /nerwei 7 m.c. 1.97 squip, only ,

A-24/ Qualification of Class SRP 3.11 gg3f9n,

! PPA B-60 IE Safety-# elated i Equipment 10 CFR 50.49 G.L 84-24. _ _..,_. _ _ .. _ _ __.. . _ _ , . . _ . . _ . _. _ _ _ _ . _ _ _ _ _ _

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i USI/NPA NLMBER TITLE REF. DoctmENT . STATUS /DATt*

_APPlL CABtlf*T5 Rtnnatts i

A-26/ Reactor Vessel Pressere DN! Letters to PWR c /07/o 3/79

!- NPA B-04 Transfent Protection Licensees 8/76' NUREG-0224

. NUREA-4371 SRP 5.2 l GL 88-11 1

l A-31 Residual Heat m al NUREG-0606 All Ols After m

, Shutdown Requiraments AG 1.113 01/79 ;

RG 1.139 i SAP 5.4.7 t

A-36/ Control of Heavy Loads NUREG-0612 All c /os/2s/as C-10 Near Spent Feel SRP 9.1.5 C-15 GL 81-07. GL 83-4?.

l GL 85-11 i Letter from DG

Etsen8et dated 12/22/80 I

j A-39 Deterefnation of SRV NUREG-0802 BWR m l Pool Dynamic Loads NUREGs-0763.0783.0002 i and Pressure Transients NUREG-0661

! SRP 5.2.1.1.C i

l A-40 Seismic Design SRP Revis1ons. NUREG/ All we

Criteria CR-4776. NUPEG/CR-C054 NUREG/CR-3400, NURES/

CR-1582. NUREE/CR-1161 NUREG-1233. RUREG-4776 NUREG/CR-3805 i NUREG/CR-5347 j NUREG/CR-3509 i

A-42/ Pipe Cracks in Boiling NUREG-0313, 8tev. 1 BWR m MPA B-05 Water Reactors NUREG-0313. Rev. 2 i GL 81-03. GL W D1 E _ _ _ . _ _ _ _ _ _ _ . _ _ _ . _ _ _ _ _ _ _ _ _ _ . _ . _ _

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i USI/ PPA NUMBER TITLE REF. DOC M NT .AFPLICA81LITY STATUS /DATE* RDUPRS 4

A-43 Containment Emergency NUREG-0510 Sump Perfovinance All m NUREG-0069. Rev. 1 NUREG-0897. R.G.I.87 j

(Rev. 0). SRP 6.2.2 GL 85-22 t

No Nequirements

A 44 Station Blackout RG 1.155 All I /nernet a NimEG-1032 schedule for
(03/92) modifications NUREG-1109 10 CFR 50.63 A-45 Shufefown Decay Heat SECY AP-260 All I /09/92 rart or Irs Removal Requirements NUREG-1289 NUREG/CR-5230
SECY 88-260
(No requirements) l A-46 Seismic Qualification NUREG-1030 All I /vno rec is nemmer of Equipment in NUREG-1211/

! Operating Plants GL 87-02. GL 87-03 or scos l

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! A-47 Safety Implication NUREG-1217. RUREG- All l

of Control Systems 1218 a /02/28/9n avaluatins ct,89-19 GL 89-19

! A-46 Hyvfrogen Control 10 CF# 50.44 All. except m Measures and Effects SECY 89-172 PWRs with

! of ;;,1;;; Ourns h*ge dry

' on Safety Equfpment containments l A-49 Pressurized Theresi RGs 1.154, 1.99 PhR Shock c /ot/17/ss SECY 82-465

[ SECY R3-288 SECY 81-687 .

j 10 CFR 50.61/

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ATTACHMENT 2 PLANT SPECIFIC COMMENTS ON STATUS OF UNRESOLVED SAFETY ISSUES FOR CRYSTAL RIVER - 3 )

I USI NUMBER COMMENTS l l

A-1 The resolution of USI A-1 did not involve any hardware ,

or design changes for Crystal River 3 (CR-3). The '

guidelines and criteria given in NUREG 0737 item I.A.2.3 l were implemented effective August 1, 1980. This i implementation status was transmitted from Florida Power l Corporation- (FPC) to the NRC in a December 15, 1980 i letter (P.Y. Baynard to D.G. Eisenhut). l 1

A-2 The ef fects of asymmetrical blowdown loads on reactor  !

vessel supports, as well as on other reactor coolant ,

sfstem components, during a loss of ceolant accident were l evaluated for CR-3 against the criteria in NUREG-J609. j L

In response to NRC requests, an evaluation repctt BAW-l- 1621 was submitted by B&W on behalf of FPC. ~ The NRC reviewd and approved the assessmat of tlio potential ,

loading problers and issued a Safety Evaluation Eccort

[. (SER) (12tter from H. Silver (NRC) to W. S. Wilqus (FPC))

L dated January 11, 1H4 This is considored to be the completion data for implementation of the resolution to -

USI A-2.

I: In a letter dated February 1, 1985 FPC requested a  :

partial exemption from those portions of General Design Criterion 4 (GDC-4) which require protection of structures, systems, and components against certain i dynamic effects associated with postulated Reactor l Coolant System (RCS) main loop pipe breaks. FPC based this request on leak-before-break techniques, based on the ability to detect a leak prior to a gross failure of ,

the piping. The SER for Amendment 89 to the CR-3 Operating License (letter from H. Silver (NRC) to W. S.

l Wilgus (FPC) dated May 23, 1986) concluded FPC's reactor coolant pressure boundary leak detection system capability satisfied the NRC staff criteria of Generic >

Letter 84-04. Based on the evaluation, the NRC SER

"... concluded that FPC had satisfied the guidance l accompanying the modified GDC-4 and therefore (could) exclude from the design basis for the reactor coolant pump supports the dynamic effects associated with postulated ruptures of primary coolant loop piping...."

1 ,

A-3 CR-3 is a Babcock and Wilcox pressurized water reactor. ,

1

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A-4 CR-3 is a Babcock and Wilcox pressurized water reactor. l A-5 The CR-3 Generic Letter 85-02 response was submitted to l the NRC on July 9, 1985. The submittal provided a description of FPC's overall program for assuring steam l

generator integrity and for steam generator tube rupture  !

mitigation at CR-3. i A-6 CR-3 is a pressurized water reactor.  !

A-7 CR-3 is a pressurized water reactor.  ;

A-8 CR-3 is a pressurized water reactor.

A-9 FPC provided the CR-3 conceptual ATWS design to the NRC ,

by letter dated September 28, 1983. Following an NRC i request for additional information, FPC provided a final A7VS design description ( dated 7ebruary 10, 1989). The NRC issued a Safety Evahation on the CR-3 ATWS design (lottor from H. Silver (MRC) to W. S. Wilgus (FPC) dated L April 19, 1989) concludir.g that the proposed design was  !

t in compliance with 10 CFR 50.62 and therefore acceptable.

  • Art indicated in the above-mentioned correspondences with ,

the NRC Stafi', FPC ant:icipates full complir.nce with 10 '

CFR 60.62 in Refuel 7, currently scheduled for March  :

1990. Based on the nominal refueling outage length. FPC projectu completion of USI A-11 related tasks by July 1990.

l A-10 CR-3 is a pressurized water reactor A-11 10 CFR 50 Appendix G requires the Charpy upper-shelf '

i energy of reactor vessel beltline materials to remain

, greater than 50 ft-lb throughout the service life of the vessel unless it can be demonstrated that lower values will provide margins of safety against failure equivalent l

. to those provided by Appendix G of the ASME Code. As part of the reactor vessel material surveillance capsule l report, Babcock and Wilcox (B&W) determines the upper- ,

shelf energy of a range of reactor vessel materials. B&W '

I has developed a methodology, described in B&W Topical Report BAW-10046A Rev. 2, for demonstrating adequate -

l levels of protection for reactor vessel materials that fall below the 50 ft-lb upper-shelf energy criteria. The NRC has reviewed and approved the methodology in BAW-10046 and issued a Safety Evaluation of the Topical Report in a letter from D. Crutchfield (NRC) to J. Taylor (B&W) dated April 30, 1986.

A-12 The NRC resolution for USI A-12 only applied to plants with a new construction permit issued after October 1983.

I 2

I l

l The construction permit for CR-3 was issued prior to this l date (September 1968). i A-17 The NRC issued Generic Letter 89-18 September 6, 1989.

While there are no requirements associated with the '

resolution of this unresolved safety issue, FPC plans i to evaluate the general " lessons learned" for ,

applicability and benefit to other ongoing programs i within CR-3. Therefore, the status for this issue is l Incompletw/ Evaluating.

A-24 The NRC issued a Safety Evaluation Report for the CR-3 )

Environmental Qualification Program on January 11, 1983, l with FPC implementation of the program for meeting the .

requirements of 10 CFR 50,49 completed by the end of l Refuel 5.(July 1965). l 10 CFR 50.49 (b) (3) requires certain post-accident moniterf.ng equipment, identified in a:ccordance with the criterlat in Revision 2 to Regulatory Guide 1.97, to be  ;

environmentally qualified. ?PC is scheduled to complete i implementation of Regulatory Guide 1.97 required modifications during Refuel 7, currently 9cheduled for .

March 1990. At thac time, FPC will have coupleted all '

items associated with USI A-24.

A-26 Florida Power submitted a plant-specific analysis of its l ranctor vessel overpressure mitigation system (OMS) to  :

the NRC by letter dated December 2, 1976. FPC provided ,

several supplements to the original letter on July 3, ,

1977, January 5, 1978, and February 17, 1979. The NRC  :

Safety Evaluation Report (SER) for Amendment 21 to the CR-3 Operating License dated July 3, 1979, stated the NRC review of the CR-3 OMS was complete and the proposed system provided adequate protection from overpressure l transients. FPC considers required actions as a result ,

of this USI to have been implemented as of the date of the SER for the OMS. In its Generic Letter 88-11 response, FPC proposed revised low temperature

  • overpressure protection setpoints for CR-3 (letter dated October 31, 1989). The revised setpoints are currently under NRC review with approval expected sometime in 1990. .

A-31 Only plants expected to receive an operating license after January 1,1979 were affected by the resolution for this issue. The operating license for CR-3 was issued prior to this date (December 1976).

A-36 FPC submitted a Phase I or "6 month" response (dated September 2, 1981) and a Phase II or "9 month" response (dated November 23, 1983) evaluating CR-3 against the 3 .

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guidance in NUREG-0612. These evaluations were performed l

'in response to two NRC Generic Letters dated Cecember  !

22, 1980 and February 3, 1981. NEC Ganeric Letter 85- '

11, dated June 26, 1985, concluded based upon industry (

Phase I submittals, that a detailed Phase II analysis of I heavy loads was not required. FPC considers the issue  !

date of Generic Letter 85-11 as the completion date for ,

this Unresolved Safety Issue. However, FPC continues to place an emphkais on attention to the safe handling of i heavy loads at CR-3. To this end, FPC continues to l maintain approximately 100 administrative commitments as ,

part of its Nuclear Operation's Commitment tracking j system related to NUREG-0612.

A-+ 3 9 CR-3 ?.s a pressurized water reactor.  !

3 A-40 CR 3 is covered under the scope of USI A-46.

A-42 CR-3 is a pressurized water reactor.

A-43 The resolution to this USI applies only to future i construction permits, preliminary design approvals, final i' design approvals, standardized dcsigns, and applications for, licenses to manufacture.

j A-44. 10 CFR 50.63 became effective July 21, 1988 and required '

individual utilities submit a response including resulta ,

of their coping analyses within 270 days. TPC respensa was contained in a letter dated April 17, 1989. FPC is ,

currently awaiting the NRC SER on its implementation of I the station blackout rule and is continuing to work on items necessary to achieve full compliance with the rule.  !

Modifications will be completed on or before Refuel 8  !

(March 1992). -

A-45 The issue of shutdown decay heat removal requirements i will be subsumed into the CR-3 Individual Plant Examination (IPE). FPC provided the NRC its schedule for completion of the IPE in a letter dated November 3,1989.

A-46 Florida Power is a member of the Seismic Qualification Utility Group (SQUG) and has participated in the

1. development of the Generic Implementation Program (GIP) .

l- In FPC's Generic Letter 87-02 response (dated October 7, 1989) FPC stated that ". . . if the GIP is completed during the first quarter of 1989, and a final SER with no open items or significant change in workscope is issued in the second quarter of 1989, [the outage where plant walkdowns to resolve this issue will be performed) would commence for CR-3 during the fall of 1991." There have been several schedular changes which will delay the date of the planned walkdowns. As of August 31, 1989, the final 4

. _ ~

i SER on the GIP is expected in March 1990 with the schedule for the CR-3 specific program and walkdown to '

be determined. .

A-47 Generic Letter 89-19, dated September 20, 1989 is  :

currently under review by Florida Power. FPC is l evaluating the actions requested in the Generic Letter i, and unless otherwise amended, a response will be provided i to the NRC on or before February 28, 1990.  ;

A-48 The resolution of this USI is applicable to boiling water  ;

reactors and pressurized water reactors with ice condenrer containments. CR-3 is a pressurized water l reactor with a large dry containmnnt and is therefore not subject to the requiramente of 10 CFP,50.44.

A-49 The limi rtale on Prersur3 zed Thermal Shock (pts) (10 CFR  ;

50, tl1) required utHit.bs submit the results of their  ;

pJant specific PTS evaluations on or beforo January 23,

, 1986. FPC letter dated January 17, 1986 satisfied this  :

requirenent and. indicated the expected value of reference '

temperature did not exceed the screening criteria before  !

4 tha expiration date of CR-3's operating license. . The PTS evalut.tior, is periodically updated as part of the reactor vessel material surveillance capsule report submitted to the NRC in accordance with 10 CFR 50 Appendix H III. A.  :

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