ML20041G542
| ML20041G542 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 03/12/1982 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Parker W DUKE POWER CO. |
| References | |
| NUDOCS 8203220496 | |
| Download: ML20041G542 (4) | |
Text
4 l
l
~
ifw
~.
9 a
C BECENED g
DISTRIBUTION:
i Docket Nos.. 50-369/370' F
MAR 171982" 1 LB #4 r/f ga mtr n ew=a N 121982 DEisenhut CCheng Docket lios: 50-3G9 rad {p
//
EAdensam EMurphy 9
and 50-370 N
RBirkel JRajan f
MDuncan bcc: TERA g
ro SHanauer NRC PDR Mr. William 0. Parker, Vice President - Steaa Production RTedesco Local PDR Duke Power Company RVollmer NSIC P.O. Box 2178 JKramer TIC 422 South Church Street RMattson ACRS (16)
Charlotte,fl orth Carolina 28242 tfield, MPA
Dear Mr. Parker:
OIE (3)
KWichman
Subject:
Restart of Unit flo.1 Following ECT Inspection of Stean Generators (ficGuire fluclear Station, Units 1 & 2[
By letter dated flarch 11, 1982, you proposed a plan for the restart of McGuire Unit 1 subsequent to your ECT inspection of all flodel D steam generators. Your restart program is an interim one until you subait a detailed report describing the basis for your continued operational pro-gram for Unit 1 at power levels greater than 50%. Pending our review and approval of your subsequent operation, Unit 1 uould only be operated according to the conditions given in your March 11, 1982, letter, i.e.
essentially at a power level no higher than 50%.
Based on the information provided in your flarch 11, 1902, letter, we find that your interia plan for operation of ficGuire Unit 1 at 50% power, with the exception of a c4 hour period at 75% power, is acceptabic for a total period no longer than 300 houre. A summary of the results of our review is presented in the enclosure.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Sincerely, S/
Robert L. Tedesco, Assistant Director 8203220496 820312 for Licensing DR ADOCK 05000 Division of Licensing
Enclosure:
As stated cc: See next page lFw
- NOTF-SEE PREb OUS WFT!r FOR CONCURRENCE 3//?/82 OFFKE >..QL:LB..d4......LA:DL:g.14
..[l $LB$.4...
.. AD.:MQE..$..
.. A A...
sunuwe)..REir.ktl/hD.c.M.D.56,k....,,,,E A,5,f.dy.am
..[g.....
h.W91WJ.!9.
_[pl.b.lo_.
. -. _ na3_,,,
p
,,,y,,,,/.,00he h",..
,31,,,ljf,82,.,
, 3!,(f,/82 3/]j,/82 our>.. 3/.11/.82........31.l.llBR..
. -.. 3/.d18.2,,,,
nac ronu sia oow Nacu ano OFFICIAL RECORD COPY uso m asi-m m
~
g.
DISTRIBUTION:
Docket Nos. 50-369/370 LB #4 r/f DEisenhut EAdensam JRajan Docket Nos: 50-369 RBirkel and 50-370 MDuncan bec: TERA SHanauer NRC POR RTedesco Local POR Mr. Ililliam O. Parker, Jr.
RVollmer NSIC Vice President - Steam Production JKramer TIC RMattson ACRS (16)
Duke Power Company P.O. Box 2178 RHartfield, MPA 422 South Church Street 0 ELD Charlotte, North Carolina 28242 OIE (3)
KWichman
Dear Mr. Parker:
CCheng EMurphy y;
Subject:
Restart of Unit No.1 Follouing ECT Inspection of Steam Generators (McGuire Nuclear Station, Units 1 & 2) s
.o By letter dated March 11, 1982, you proposed a plan for the restart of
..f
/
McGuire Unit 1 subsequent to your ECT inspection of all Model D steam
(
generators. Your restart program is an interim one until you submit a
,B[t detailed report describing the basis for your continued operational pro-gram for unit 1 at power levels greater than 50%. Pending our review j
and approval of your subsequent operation, unit I would only be operated,
- according to the conditions given in your March 11, 1982, letter, i.e.
.C essentially at a power level no h{gher than 50%.
[ g.i
\\
Based on the infon:1ation provided in 11, 1982, letter, we find that your interim plan for operation \\your March of McGuire Unit 1 at 50% power is r
acceptable A summary of the results\\of our review is presented in the enclosure. & Q j.p Q n.-l y % 2 ao.Ar m.
\\
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore OMB clearance is not required under P.L.96-511.
Sincerol,
Robert L. Tedesco, Assistant Director forLicensink Division of Licensing
\\
Enclosure:
\\
As stated
\\
L AD:L/DL cc: See next page RTedesco m ms 3/ /R2
.DL:La..# 8LA:DL:LB..#4.... DL:LB.. #.4..
.. AD.:MQE.....
. 0RAB..
omcc >
suRu.wc ). R B,i,rke.',1,/,hmc. MDuncan.,,,
EAdensam.
.CC
..RJ.ohns. tore..
..T.Ippal.i.to...
..GLainas......
om> 2/.jl/.az......
3/..../s2....
.. 31..../.aa....
...al.u../.a2....
. 3L..la2..,,,
. 3.t./.82, 3/, /82,,,,
OFFICIAL RECORD COPY usa mi-me NRCtORM 318 00-80) NRCM 0m
McGuire Mr. William O. Parker, Jr.
Vice President - Steam Production Duke Power-Conpany P.O. Box 2178 422 South Church Street Charlotte, North Carolina 28242 cc:
Mr. A. Carr Janes P. O'Reilly, Regional Administrator Duke Power Company U.S. Nuclear Regulatory Commission, P.O. Box 2178 Region II 422 South Church Street 101 Marietta Street, Suite 3100 Charlotte, North Carolina 28242 Atlanta, Georgia 30303 Mr. F. J. Twogood Power Systems Division Westinghouse Electric Corp.
P.O. Box 355 Pittsburgh, Pennsylvania 15230 Mr. E. J. Keith EDS Nuclear Incorporated 220 Montgomery Street San Francisco, California 94104 Mr. J. E. Houghtaling NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Mr. Jesse L. Riley, President The Carolina Environmental Study Group 854 Henley Place Charlotte, North Carolina 28207 J. Michael McGarry, III, Esq.
DeBevoise & Liberman 1200 Seventeenth Street, N.W.
Washington, D. C.
20036 Shelley Blum, Esq.
1716 Scales Street Raleigh, North Carolina 27608 Mr. Paul Bemis Senior Resident Inspector i
c/o U.S. Nuclear Regulatory Commission P.O. Box 216 Cornelius, North Carolina 28013 S
J
\\o REVIEW 0F PROPOSED RESTART OF McGUIRE UrlIT NO. 1 SUBSEQUENT TO ECT INSPECTION OF ALL MODEL D STEN 1 GENERATORS Eddy current inspections perfomed during the current outage at McGuire Unit lio. I have revealed early indications of wear affecting several tubes in the preheater section of one steam generator. Maximum tear indications sere limited to approximately 20% through wall. The licensee plans to submit the detailed inspection results by March 16, 1982. This submittal will include the licensee's plans and justification for cperating the unit for a limited period prior to perfoming the next steam generator inspection.
By letter dated March 11, 1982, Duke Power Company informed the staff of its plans to restart McGuire 1 on March 14, 1982, and to operate at a reduced power le el until such time as the staff has completed its review of the steam generator inspections perfomed during the current outage and its program for continued operation. The plant will be operated at no more than 50% power, i
with the exception of a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period during which power will not exceed 75%.
The escalation to 75% power is being performed to collect data as early as possible in view of the possibility that one or more of the internal sensors may fail prematurely due to the environment in the staast generator.
Uc have detemined that the peeposed restart of McGuire 1 subject to the operating limitations specified above is acceptable for the following reasons:
1.
Recent data from internal instrumentation installed in the 1
Almaraz 1 steam generators does not indicate any significant increase in vibration response until the power level has been increased beyond 50%.
Initial results of flow and vibration tests at Westinghouse appear to be consistent with the finding.
2.
McGuire has previously operated for approximately 9 weeks at pover 250%, including approximately two weeks at pover 275%,
approximately 3 days at power 2.90%, and 1 day at 100% power.
Maximum uear indications to date are limited to 20% through wall. Thus, no significant progression of wear is anticipated for the relatively short period of tiae (approximately 10 days) before the staff completes its review of the detailed inspec-tion results and the licensee's plans for operation of McGuire prior to perfoming the next steam generator inspection.
In conclusion, we find that the licensee's plan to restart McGuire on March 14, 1982, subject to the operating limitations proposed in Duke Power's March 11, 1982, submittal, to be acceptable. This finding applies to a total of 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> operation. continued operation beyond 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> (approximately 12 days) will be contingent upon the licensee's submitting the detailed inspection results and their plans and justificationsfor continued operation within two days.
following startup. This will allow the staff adequate time before 300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br /> operation is completed to complete its review.
OFFICE )
sURNAMEh omy nnc ronu ais tio-son nacu oua OFFICIAL RECORD COPY usceo.
-m.e.