ML19259D260
| ML19259D260 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 10/02/1979 |
| From: | Boyd D, Spessard R, Warnick R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-79-009, PNO-III-79-9, TAC-12237, NUDOCS 7910170513 | |
| Download: ML19259D260 (2) | |
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- PyrrTMTNARY NOTIFICATION Date:
October 2, 1979 PEELIMINARY NOTIFICATION OF IVENT OR UNUSUAL OCCURRF.NCE--PNO-III 09 This preliminary notification constitutes EARI,Y notice of events of POSSIBLE saf ety or pu. b.lic interes t significance.
The information presented is as initially received without verification or evaluation and is basically all that is hnown by IE staff on this date.
Faellity: Northerb States Power Company Prairle Island, Uni t 1 (DN 50-232)
Red 'Wint,111nnesota Sti: i e.c t :
Tube Rupture in Stec: Generator A Le licensee =otified the NRC (via the Red Phene) et 2:45 ;.:. on Oc:cber 2, 1970, ths a etec= p,enerator tube h..d rupture.1 c.t 2: 30 p.m. ou October 2, 1979, which a
cr4 init iat ed a rea c:cr.. trip / turbine tri:gsa'ety injectier due te lov RCS pressure (treur 1500 psi,).
All saf e ty sys tem functione' normally, and ECS paraceters g
c: uncc: control (pressure ahnu: 2235 psig, T.get ' 500 F cnd !c,01g = /.70Cy).
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Ec'e:.y inje ction is still in opercticn with a flov of about 300 - 400 gp=.
RCS cc:ivity is about I rd-2 uCi /cc.
~he raain s tea = iscla tica valves are closeb. The dr ejecto moniters are pegged cif scrJe high.
A 3 0 0 p. ::. th e. lice.nsee riecla red a cite escrgcccy, and of f site curvey Lee =s were dispa tched cus to the release f cr
- : + ' r. f. building.
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,: ; nan nendrie Corn:tstener Bradford
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'.. V. Gostich, EDO H. R. Denton, NRR F. 1. Ornstein, EDO R. C. DeYoung, NF_;,
J. J. Fouchard, PA R. J. Mattson, NRR Landov (6 -in/ pag.
N. M. Haller, MPA D. Vessallo, NRR J. J. Cu=m ngs, CIA R. G. Ryan, OSP D. Eisenhut, NRR H
K. Shapar, ELD SS Eldg
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Dircks. Nu.SS K. M:.nogue, SD S. Levine, RES II:XCC5 791017o
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~=N PRELIliINART NOTIFICATION 8
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6 Date:
October., 1970 PPILIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-79-09 Tnis preliminary notification constitutes EARI.Y notice of events of POSSIBLE cafety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is koovn by IE staff on this date.
2-Ble. Emergency Response Centel was iercediately activated f ol30Ving notification si centinuous cc:=unications with the licensee and 1E are being maintained.
Th e Eesident Inr.pector is on$ite.
A site tea = (five ce=bers) is being sent fron the Region III of fice.
(Ist. Departure 4:15 p.=.; Est Arrival 6:00 p.:.)
-he U.S.
Envi:cn:: ental Prctectien Agenc* and the State of Minnesota have been nctified.
The State is sendin; a survey tea to the site.
Tn e N RC '.1111 i s s u & 'a p r e s s r e le as e.
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mi Tnis into r.arien is curren: r.s of 1:!.5 p.m.
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.'SS Bldg (MA!L1 b'. J. Direns. K. MSS R. Minogue, SD S. Levine, PIS IE:XOOS
!l62 250 PPILIMIN/J.Y NOTIFICATION i