ML19312C230
| ML19312C230 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 09/01/1976 |
| From: | Parker W DUKE POWER CO. |
| To: | Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 7912100706 | |
| Download: ML19312C230 (1) | |
Text
NRCFoKM U.S. NUCLEAn REGULATORY Cr '11SSION DOCKET NUM!En (2 1s >
JO
- Z (o C)
NRC DISTRIBUTION Fon PART 50 DOCKET MATERIAL I CID b REPORT TO:
FROM:
DATE OF DOCUMENT
~*
Mr Moseley Duke Power Company 9-1-76 Charlotte, NC oATE RECEivEo W 0 Parker Jr 9-20-76 YLE TTE R ONOTORIZED PROP INPUT FORM NUMBER OF COPIES RECEIVED XOR IGIN A L NUNCLASSIFIE D OCory one signed DESCRIPTIOfJ EN CLOSU R E Ltr re their submittal of R0-269/76-12....
furnishing supplemental info with regard to limited usage of Unit i letdown Cooler "A".............
e l
PLANT NAME:
OConee #1 NOTE:
IF PERSONIEL ~r.EOSURE IS INVOLVED SEND DIRECTLY-TO KREGER/J. COLLINS FOR ACTION /INFORMATION 9-Z3-76 ent I".*J:CH CHIE':
I S e h v e.n c.ee l
I W/3 CYS FOR ACTION LIC.. ASST.:
5 1 c 'da r d-W/ / CYS ACRS LG, CYS h;;;...u/SENT TO LA I
INTERNAL DISTRIBUTION
%,gEji FIL"W
!GC PDR I le E (2)
MIPC SCHROEDER/IPPOLITO HOUS' ION NOVAK/ CHECK GRDES CASE IUTLER FidiAUER TEnESCOhtACCARY EISENHUT PldG SHA0 VOLIlER IUNCH
,p 3;ER J.COLLTNS t
I i
EXTERNAL DISTRIBUTION CONTROL NUMBER IJ'[R: fh4 /h 445 A. K
..q 12100706 p
C' S S S g
i i snC r ufu two (2 m)
~
Duxe POWER COMPANY Powzu Duttotwo 422 SocTu Cncacu Srvest, CruatorTz, N. C. asa4a WI6bl AM O. PA R 18 E I, J R.
ACf Pets.ctgf Tt*te=0mt Asta704 Seta Pesowetow 373-40s3 September 1, 1976 gf QA
'w /j b
/,5 0 q[
p % g /$/a Mr. Norman C. Moseley, Director i
L
'E "
U. S. Nuclear Regulatory Commission
' 93 Suite 818 A
if l%
~
"'UD %
s'/. f.
230 Peachtree Street, Northwest
' ~
%*g
\\ ', _
Atlanta, Georgia 30303 Re: Oconee Unit 1 Docket No. 50-269
Dear Mr. Moseley:
The following information discusses the limited usage of Unit i letdown cooler "A" and is submitted as a supplemental response to Reportable Occurrence Report R0-269/76-12.
Evaluation of the impact of the use of letdown cooler "A" has been completed.
It is concluded that limited usage within Technical k.
Specification and FSAR requirements, and under the following restrictions, will not adversely affect the operation of the unit or its components.
The unit operation will continue with letdown cooler "A" isolated except as stated under the follow.og conditions:
1.
The letdown cooler now in use indicates leakage and use of the subject cooler is needed to evaluate its leakage rate.
2.
The letdown cooler now in use has a higher leakage rate than the isolated cooler.
3.
During restart from a trip or shutdown the letdown cooler can be operated for a period not to exceed 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> without further l
evaluation.
Monitoring of the letdown coolers and the Component Cooling System l
will be maintained to assure operation within appropriate limits for reactor coolant leakage.
Very truly yours sea 5
/
1 -- d.
William O. Parker. J.
IJB:v cc.
Director, Office of Management Information & Program' Con:rol
.