ML20004C628: Difference between revisions

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{{#Wiki_filter:.
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Consum8I5 f; \   Pg          Power Jun w c k i 'a               Company                                             . m, ~,u,., - ~ym e.g.,     y and Construction o nares offices: 194s w rernois noes. Jac.. ._ u 4.aos, . 3s1717ss.o4ss 79-03 #5 May 29, 1981
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Mr J G Keppler, Regional Director                                                       g                   i Office of Inspection and Enforcement                                             a US Nuclear Regulatory Commission                                               d'       3ONe#g S [g7 Region III                                                                               p8$g#55         (/
y and Construction o nares offices: 194s w rernois noes. Jac..
799 Roosevelt Road                                                                                       y g
._ u 4.aos,. 3s1717ss.o4ss 79-03 #5 May 29, 1981 fg.7,2
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Region III p8$g#55
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y Glen Ellyn, IL 60137 dp in y*\\
MIDLAND PROJECT -
MIDLAND PROJECT -
DOCKET NOS 50-329, 50-330 SMALL BREAK / REACTOR CCOLA'IT PUMP OPERATION INTEPACTION FILE:     0.h.9 28 UFI: 73*10*01,h2*ho*01*20,023h2(S) SERIAL:                         12010
DOCKET NOS 50-329, 50-330 SMALL BREAK / REACTOR CCOLA'IT PUMP OPERATION INTEPACTION FILE:
0.h.9 28 UFI: 73*10*01,h2*ho*01*20,023h2(S) SERIAL:
12010


==References:==
==References:==
Line 33: Line 46:
: 1) Serial Hove-221-79; dated August 15, 1979
: 1) Serial Hove-221-79; dated August 15, 1979
: 2) Serial Hove-271-79; dated October 15, 1979
: 2) Serial Hove-271-79; dated October 15, 1979
: 3) Serial Hove-25-80; dated February 8, 1980                                     .,
: 3) Serial Hove-25-80; dated February 8, 1980 h) Serial 97T0; dated October 10, 1980 This letter, as were the referenced letters, is an interim 50.55(e) report concerning a potentially unsafe situation with respect to the tripping of reactor coolant pumps durlw c.er:;ain pr1=ary system high void fraction conditions.
h) Serial 97T0; dated October 10, 1980 This letter, as were the referenced letters, is an interim 50.55(e) report concerning a potentially unsafe situation with respect to the tripping of reactor coolant pumps durlw c.er:;ain pr1=ary system high void fraction conditions.
As stated in the previous interim reports, the Midland design vill be modifi,ed to incorporate safety-grade, automatic RCP trip circuitry.
As stated in the previous interim reports, the Midland design vill be modifi,ed to incorporate safety-grade, automatic RCP trip circuitry.
The present plan is to have the modifications in place to support hot functional testing in late 1982.
The present plan is to have the modifications in place to support hot functional testing in late 1982.
Another report, either interim or final, vill be submitted on or before                                               '
Another report, either interim or final, vill be submitted on or before December k, 1981.
December k, 1981.
1 WR3/1r CC: Director of Office of Inspection & Enforcement i
1 WR3/1r                                                                                                                 '
Att Mr Victor Stello, USNRC (15) 18106040351 5
CC: Director of Office of Inspection & Enforcement                                                                     l i
Att Mr Victor Stello, USNRC (15) l 18106040351 5


          ; . ;X E2
';. ;X E2
                  -Serial 12010                                         79-03 #5
-Serial 12010 79-03 #5
.j-
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    ,I CC: Director, Office of Mana6ement
,I CC: Director, Office of Mana6ement Information & Program Control,.USNRC (1)
    ;.                    Information & Program Control,.USNRC (1)
:l RJCook, USNRC Resident Inspector-Midland Nuclear Plant (1)
:l                         RJCook, USNRC Resident Inspector-Midland Nuclear Plant (1)
.t Li CBechhoefer, ASLB Panel RSDecker, ASLB Panel FPCowan, ASLB Panel AS&L' Appeal Panel MMCherry, E q MSinclair.
.t                                             .
Li                         CBechhoefer, ASLB Panel RSDecker, ASLB Panel FPCowan, ASLB Panel AS&L' Appeal Panel MMCherry, E q                     -
MSinclair.
CRStephens, USNRC-WDPaton, Esq. USNRC FJKelly, Esq, Attorney General SHFreeman, Esq. Asst Attorney General GTTaylor, Esq, Asst Attorney General WHMarshall GJMerritt, TNK8J t
CRStephens, USNRC-WDPaton, Esq. USNRC FJKelly, Esq, Attorney General SHFreeman, Esq. Asst Attorney General GTTaylor, Esq, Asst Attorney General WHMarshall GJMerritt, TNK8J t
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Latest revision as of 12:22, 23 December 2024

Interim Deficiency Rept,Originally Reported on 790815,re Tripping of Reactor Coolant Pumps During Certain Primary Sys High Void Fraction Conditions.Cause Not Stated.Facility Design Modified.Next Rept Expected 811204
ML20004C628
Person / Time
Site: Midland
Issue date: 05/29/1981
From: Jackie Cook
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, 79-03-#5, 79-3-#5, 79-3-5, DERF-810529, NUDOCS 8106040352
Download: ML20004C628 (1)
v • d • e


Text

.

e s. -

Consum8I5 P

Power f;

\\

g Jun w c k i 'a Company

. m, ~,u,., - ~ym e.g.,

y and Construction o nares offices: 194s w rernois noes. Jac..

._ u 4.aos,. 3s1717ss.o4ss 79-03 #5 May 29, 1981 fg.7,2

/G\\

%?

g/

\\,'-

g Mr J G Keppler, Regional Director i

3ON g S [g7 Office of Inspection and Enforcement a

US Nuclear Regulatory Commission d'

e#

Region III p8$g#55

(/

799 Roosevelt Road g

y Glen Ellyn, IL 60137 dp in y*\\

MIDLAND PROJECT -

DOCKET NOS 50-329, 50-330 SMALL BREAK / REACTOR CCOLA'IT PUMP OPERATION INTEPACTION FILE:

0.h.9 28 UFI: 73*10*01,h2*ho*01*20,023h2(S) SERIAL:

12010

References:

CPCo letters to J G Keppler; Same Subject;

1) Serial Hove-221-79; dated August 15, 1979
2) Serial Hove-271-79; dated October 15, 1979
3) Serial Hove-25-80; dated February 8, 1980 h) Serial 97T0; dated October 10, 1980 This letter, as were the referenced letters, is an interim 50.55(e) report concerning a potentially unsafe situation with respect to the tripping of reactor coolant pumps durlw c.er:;ain pr1=ary system high void fraction conditions.

As stated in the previous interim reports, the Midland design vill be modifi,ed to incorporate safety-grade, automatic RCP trip circuitry.

The present plan is to have the modifications in place to support hot functional testing in late 1982.

Another report, either interim or final, vill be submitted on or before December k, 1981.

1 WR3/1r CC: Director of Office of Inspection & Enforcement i

Att Mr Victor Stello, USNRC (15) 18106040351 5

';. ;X E2

-Serial 12010 79-03 #5

.j-

,I CC: Director, Office of Mana6ement Information & Program Control,.USNRC (1)

l RJCook, USNRC Resident Inspector-Midland Nuclear Plant (1)

.t Li CBechhoefer, ASLB Panel RSDecker, ASLB Panel FPCowan, ASLB Panel AS&L' Appeal Panel MMCherry, E q MSinclair.

CRStephens, USNRC-WDPaton, Esq. USNRC FJKelly, Esq, Attorney General SHFreeman, Esq. Asst Attorney General GTTaylor, Esq, Asst Attorney General WHMarshall GJMerritt, TNK8J t

1

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