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{{#Wiki_filter:REGULATORINFORMATION OISTRISUTION TEM (RIOS)ACCESSION NBR:8011070407 DOC~DATE~80/10/28 NOTARIZED:
{{#Wiki_filter:REGULATORINFORMATION             OISTRISUTION   TEM     (RIOS)
NO FACIL:50-388 Susquehanna Steam Electric<<Station~
ACCESSION NBR:8011070407               DOC ~ DATE ~ 80/10/28   NOTARIZED:   NO       DOCKET FACIL:50-388 Susquehanna           Steam     Electric<<Station~ Unit 2g Pennsylva       05000388 AUTH'Ai4lE CURTIS N 5 p ~   ~
Unit 2g Pennsylva AUTH'Ai4lE AUTHOR AFFILIATION CURTIS p N~5~Pennsylvania Power 8 Light Co.RECIP~NAME R'ECIPIENT AFFILIATION GRIERg B,H~-Region 1'F Philadelphiaq Office o.f the Director SUBJECT;Interim deficiency rept re loose contact modules found on GE Type CR2940 selector switches.Bechtel will perform.analysis on CR2940 Switches L pushbottoms,Final rept including action taken<will be submitted in Jan 1981, DISTRIBUTION CODE: B019S COPIES RECEIVED+LTR
AUTHOR AFFILIATION Pennsylvania Power 8 Light Co.
~ENCL SIZE: o TITLE: Construction Deficiency Report (10CFR50,55E)
55  3/7 RECIP NAME
NOTES:Send ILE" 3 copies FSAR 8 all amends, DOCKET 05000388 55 3/7 05000388 REC IP IENT ID CODE/NAME ACTION;A/D L,ICENSNG 04 RUSHBROOKgH, Ob INTERNAL e AD/RC I/I E 17 ASLBP/J~HARD EDO L STAFF 19 HYD/GEO BR 22 LIC QUAL, BR, 12"NRC PDR 02 PROC/TST REV 13 E 01 ST DEV 21 COPIES LTTR ENCL 1 1 1 1 1 1 1 RECIPIENT IO CODE/NAME YOUNGBLOODgB 05 STARKFR~07 AEOD 18 D/DIR HUM FAC15 EQUIP QUAL!BR11 IBE 09 MPA 20 OELD" 21, QA BR 14 RUTHERFORDc&#xc3;RIE COPIES LTTR ENCL EXTERNAL: ACRS NSIC 1'6 08 1b 1 1 LPDR 03"-=i g(SS gQA TOTAL NUMBER OF COPIES REQUIRED;LTTR~ENCL:
        ~                 R'ECIPIENT AFFILIATION GRIERg B,H ~
II y (I t ll I(r:~f,s~~~4~
                            - Region 1'F Philadelphiaq Office o.f the Director SUBJECT; Interim deficiency rept re loose contact modules found on GE Type CR2940 selector             switches.Bechtel will perform
I*TWO NORTH NINTH STREET, ALLENTOWN, PA.18101 PHONE: (215)821 5151'ORMAN W.CURTIS Vice Presittent-Engineering tL Construction-Nuciear 821-5381 October 28, 1980 Mr.Boyce H.Grier Director, Region I U.S.Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 Vl Ctt COC't~g4 g iPII C'cCrs I I Alfrt K SUSQUEHANNA STEAM ELECTRIC STATION INTERIM REPORT OF A POTENTIAL REPORTABLE DEFICIENCY GE TYPE CR2940 SWITCHES ERs 100450/100508 FILE 840-4/900-10 PLA-565
            .analysis on       CR2940   Switches     L pushbottoms,Final     rept including       action   taken<will     be submitted   in Jan 1981, DISTRIBUTION CODE: B019S           COPIES RECEIVED+LTR TITLE: Construction Deficiency Report (10CFR50,55E)
                                                                  ~ENCL    o  SIZE:
NOTES:Send     ILE" 3   copies   FSAR   8   all amends,                             05000388 REC IP IENT           COPIES                RECIPIENT          COPIES ID CODE/NAME           LTTR ENCL          IO CODE/NAME        LTTR ENCL ACTION;     A/D L,ICENSNG 04                             YOUNGBLOODgB 05 RUSHBROOKgH,       Ob                       STARKFR ~      07 INTERNALe AD/RC     I/I E     17       1              AEOD D/DIR 18 ASLBP/J ~ HARD               1                      HUM  FAC15 EDO L STAFF         19       1              EQUIP QUAL! BR11 HYD/GEO BR         22                       IBE            09 LIC QUAL, BR, 12                             MPA
                                                                "
20 "NRC PDR             02       1              OELD            21, PROC/TST REV 13             1               QA BR           14 E                01      1              RUTHERFORDc&#xc3;RIE ST            DEV 21        1 EXTERNAL: ACRS                 1'6     1b     1       LPDR           03 NSIC                08      1
                "-=i g(SS gQA TOTAL NUMBER OF COPIES           REQUIRED; LTTR       ~     ENCL:


==Dear Mr.Grier:==
II y
This letter serves to confirm information provided by telephone to NRC Inspector Mr.L.Narrow by Mr.A.R.Sabol of PPGL on September 24, 1980.During that conversation Mr.Narrow was advised that the subject condition was under evaluation for reportabi3.ity under the provisions of 10CFR50.55(e).
(I t
Loose contact modules were found on some GE type CR2940 selector switches at other-nuclear power facilitiesr, therefore, a sampling plan was initiated to determine if a similar problem existed at the SSES.Construction was instructed to inspect at least 80 CR2940 selector switches and pushbuttons, both Class 1E and non-Class 1E, on at least 13 different pieces of equipment.
ll I(
Construction was given a listing of 78 pieces of equipment with approximately 750 selector switches and pushbuttons installed on them.A total of 17 switches and pushbuttons (14 on Unit 2 and 3 on common equip-ment)were identified with loose contact module mounting screws out of 231 switches inspected in 16 pieces of equipment (3 for Unit 1, 4 for Unit 2 and 9 for common equipment).
r: ~
The switches with loose contact modules are as follows: Switch HS-24323B2 HS-25020B HS-27630A HS-27630B HS-27661A HS-27661B HS-27665B HS-27666C Panel Loc.2C201A II 2C681 Classification Class 1E 80 ILT 0 V 0'/uP PENNSYLVANIA POWER 8 LIGHT COMPANY IPI 3 gt 0 Mr.Boyce H.Grier October 28, 1980 Switch HS-27761A'HS-21131A HS-21131B HS-21137A HS-21138A HS-21140B Annun.Test (547)Spare (555)Spare (595)Panel Loc.2C694 OC673 Classification Non-Class lE In letter BLTG-467 dated September 29, 1980, General Electric was requested to furnish the following information:
f,s
l.The proper procedure for tightening the screws or nuts holding the loose contact blocks to prevent voiding the product quality certi-fication for Class lE selector switches and pushbuttons, and 2.any special requirements for both Class lE and non-Class lE selector switches and pushbuttons, i.e., torque, use of"locktite", etc.Via a subsequent telephone call and letter, GE was requested to supply the following information:
~~ ~4~
1.The reason for the loose contact modules 2.An explanation of what Bechtel QC observed to be insufficiently long mounting screws used to secure the contact modules to the switch frames.These apparently shorter than adequate screws do not permit the end of the screw to extend beyond the surface of the mounting frame.It has been concluded that there may be some switches with loose contact modules in safety related circuits and that these contact modules could come loose if not repaired.Bechtel Construction will check additional CR2940 switches and pushbuttons and an analysis of all the circuits having Class lE switches with loose contact modules will be completed.
 
Based on the location of such switches in safety related'circuits, Bechtel Project Engineering has concluded that this is potentially reportable under 10CFR50.55(e)
I
.Further, since the details of this report provide information relevant to the reporting requirements of 10CFR21, this correspondence is considered to also discharge any formal responsibility PPGL may have for reporting in compliance thereto.
* TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101    PHONE: (215) 821 5151'ORMAN Vl                    C' W. CURTIS                                                                                                          cCrs I I Vice Presittent-Engineering tL Construction-Nuciear                                                        Ctt 821-5381                                                                                        COC't                        Alfrt October 28, 1980
Mr.Boyce H.Grier October 28, 1980 We expect to provide a final report on the deficiency and the corrective action taken in January, 1981.Very truly yours, g2/7c~~~N.W.Curtis Vice President-Engineering 6 Construction-Nuclear ARS:mcb cc: Mr.Victor Stello (15)Director-Office of Inspection 6 Enforcement U.S.Nuclear Regulatory Commission Washington, D.C.20555 Mr.G.McDonald, Director Office of Management Information a Program Control U.S.Nuclear Regulatory Commission Washington, D.C.20555 Mr.Robert M.Gallo U.S.Nuclear Regulatory Commission P.O.Box 52 Shickshinny, Pennsylvania 18655}}
                                                                                                  ~g4    g iPII K
Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania                19406 SUSQUEHANNA STEAM ELECTRIC STATION INTERIM REPORT OF A POTENTIAL REPORTABLE DEFICIENCY GE TYPE CR2940 SWITCHES ERs 100450/100508                            FILE 840-4/900-10 PLA-565
 
==Dear Mr.       Grier:==
 
This letter serves to confirm information provided by telephone to NRC Inspector Mr. L. Narrow by Mr. A. R. Sabol of PPGL on September 24, 1980.
During that conversation Mr. Narrow was advised that the subject condition was under evaluation for reportabi3.ity under the provisions of 10CFR50.55(e).
Loose contact modules were found on some GE type CR2940 selector switches                                 at other- nuclear power facilitiesr, therefore, a sampling plan was initiated                             to determine         if a     similar problem existed at the SSES. Construction was                     instructed to inspect at least 80 CR2940 selector switches and pushbuttons, both Class 1E and non-Class 1E, on at least 13 different pieces of equipment.                               Construction was given a listing of 78 pieces of equipment with             approximately                 750 selector switches and pushbuttons installed on them.
A   total of       17   switches and pushbuttons (14 on Unit 2 and 3 on common equip-ment) were identified with loose contact module mounting screws out of 231 switches inspected in 16 pieces of equipment (3 for Unit 1, 4 for Unit 2 and 9 for common equipment).
The     switches with loose contact modules are as follows:
Switch                       Panel Loc.                      Classification HS-24323B2                   2C201A                            Class            1E II HS-25020B HS-27630A                     2C681 HS-27630B HS-27661A HS-27661B HS-27665B HS-27666C IPI 3 PENNSYLVANIA POWER  8 LIGHT COMPANY 80   ILT 0 V       0'/uP                                                                                         gt     0
 
Mr. Boyce H. Grier                                           October 28, 1980 Switch                   Panel Loc.                    Classification HS-27761A
          'HS-21131A                 2C694 HS-21131B HS-21137A HS-21138A HS-21140B Annun. Test (547)         OC673                        Non-Class lE Spare (555)
Spare (595)
In letter BLTG-467 dated September 29, 1980, General Electric was requested to furnish the following information:
: l. The proper procedure for tightening the screws or nuts holding           the certi-loose contact blocks to prevent voiding the product quality fication for Class lE selector switches and pushbuttons, and
: 2. any special requirements for both Class lE and non-Class lE selector switches and pushbuttons, i.e., torque, use of "locktite", etc.
Via a subsequent telephone     call and letter,   GE was requested to supply the following information:
: 1. The reason   for the loose contact   modules
: 2. An explanation of what Bechtel QC observed to be insufficiently long mounting screws used to secure the contact modules to the switch frames.
These apparently shorter than adequate screws do not permit the end of the screw to extend beyond the surface of the mounting frame.
It has   been concluded   that there may be some switches with loose contact modules in safety     related circuits and that these contact modules could come loose   if not repaired.
Bechtel Construction     will check additional   CR2940 switches and pushbuttons and an   analysis   of all the circuits having   Class lE switches with loose contact modules     will be completed.
Based on   the location of such switches in safety related'circuits, Bechtel Project Engineering has concluded that this is potentially reportable under 10CFR50.55(e)   .
Further, since the details of this report provide information relevant to the reporting requirements of 10CFR21, this correspondence is considered to also discharge any formal responsibility PPGL may have for reporting in compliance thereto.
 
Mr. Boyce H. Grier                                     October 28, 1980 We expect to provide a final report on the deficiency   and the corrective action taken in January, 1981.
Very truly yours, g2/7c~~~
N. W. Curtis Vice President-Engineering   6 Construction-Nuclear ARS:mcb cc:   Mr. Victor Stello     (15)
Director-Office of Inspection 6 Enforcement U. S. Nuclear Regulatory Commission Washington, D.C.     20555 Mr. G. McDonald, Director Office of Management Information   a Program Control U. S. Nuclear Regulatory Commission Washington, D.C.     20555 Mr. Robert M. Gallo U. S. Nuclear Regulatory Commission P. O. Box 52 Shickshinny, Pennsylvania     18655}}

Revision as of 00:46, 22 October 2019

Interim Deficiency Rept Re Loose Contact Modules Found on GE Type CR2940 Selector Switches.Bechtel Will Perform Analysis on CR2940 Switches & Pushbottoms.Final Rept, Including Action Taken,Will Be Submitted in Jan 1981
ML18030A163
Person / Time
Site: Susquehanna Talen Energy icon.png
Issue date: 10/28/1980
From: Curtis N
PENNSYLVANIA POWER & LIGHT CO.
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
10CFR-050.55E, 10CFR-50.55E, PLA-565, NUDOCS 8011070407
Download: ML18030A163 (5)
v • d • e


Text

REGULATORINFORMATION OISTRISUTION TEM (RIOS)

ACCESSION NBR:8011070407 DOC ~ DATE ~ 80/10/28 NOTARIZED: NO DOCKET FACIL:50-388 Susquehanna Steam Electric<<Station~ Unit 2g Pennsylva 05000388 AUTH'Ai4lE CURTIS N 5 p ~ ~

AUTHOR AFFILIATION Pennsylvania Power 8 Light Co.

55 3/7 RECIP NAME

~ R'ECIPIENT AFFILIATION GRIERg B,H ~

- Region 1'F Philadelphiaq Office o.f the Director SUBJECT; Interim deficiency rept re loose contact modules found on GE Type CR2940 selector switches.Bechtel will perform

.analysis on CR2940 Switches L pushbottoms,Final rept including action taken<will be submitted in Jan 1981, DISTRIBUTION CODE: B019S COPIES RECEIVED+LTR TITLE: Construction Deficiency Report (10CFR50,55E)

~ENCL o SIZE:

NOTES:Send ILE" 3 copies FSAR 8 all amends, 05000388 REC IP IENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL IO CODE/NAME LTTR ENCL ACTION; A/D L,ICENSNG 04 YOUNGBLOODgB 05 RUSHBROOKgH, Ob STARKFR ~ 07 INTERNALe AD/RC I/I E 17 1 AEOD D/DIR 18 ASLBP/J ~ HARD 1 HUM FAC15 EDO L STAFF 19 1 EQUIP QUAL! BR11 HYD/GEO BR 22 IBE 09 LIC QUAL, BR, 12 MPA

"

20 "NRC PDR 02 1 OELD 21, PROC/TST REV 13 1 QA BR 14 E 01 1 RUTHERFORDcÃRIE ST DEV 21 1 EXTERNAL: ACRS 1'6 1b 1 LPDR 03 NSIC 08 1

"-=i g(SS gQA TOTAL NUMBER OF COPIES REQUIRED; LTTR ~ ENCL:

II y

(I t

ll I(

r: ~

f,s

~~ ~4~

I

  • TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONE: (215) 821 5151'ORMAN Vl C' W. CURTIS cCrs I I Vice Presittent-Engineering tL Construction-Nuciear Ctt 821-5381 COC't Alfrt October 28, 1980

~g4 g iPII K

Mr. Boyce H. Grier Director, Region I U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, Pennsylvania 19406 SUSQUEHANNA STEAM ELECTRIC STATION INTERIM REPORT OF A POTENTIAL REPORTABLE DEFICIENCY GE TYPE CR2940 SWITCHES ERs 100450/100508 FILE 840-4/900-10 PLA-565

Dear Mr. Grier:

This letter serves to confirm information provided by telephone to NRC Inspector Mr. L. Narrow by Mr. A. R. Sabol of PPGL on September 24, 1980.

During that conversation Mr. Narrow was advised that the subject condition was under evaluation for reportabi3.ity under the provisions of 10CFR50.55(e).

Loose contact modules were found on some GE type CR2940 selector switches at other- nuclear power facilitiesr, therefore, a sampling plan was initiated to determine if a similar problem existed at the SSES. Construction was instructed to inspect at least 80 CR2940 selector switches and pushbuttons, both Class 1E and non-Class 1E, on at least 13 different pieces of equipment. Construction was given a listing of 78 pieces of equipment with approximately 750 selector switches and pushbuttons installed on them.

A total of 17 switches and pushbuttons (14 on Unit 2 and 3 on common equip-ment) were identified with loose contact module mounting screws out of 231 switches inspected in 16 pieces of equipment (3 for Unit 1, 4 for Unit 2 and 9 for common equipment).

The switches with loose contact modules are as follows:

Switch Panel Loc. Classification HS-24323B2 2C201A Class 1E II HS-25020B HS-27630A 2C681 HS-27630B HS-27661A HS-27661B HS-27665B HS-27666C IPI 3 PENNSYLVANIA POWER 8 LIGHT COMPANY 80 ILT 0 V 0'/uP gt 0

Mr. Boyce H. Grier October 28, 1980 Switch Panel Loc. Classification HS-27761A

'HS-21131A 2C694 HS-21131B HS-21137A HS-21138A HS-21140B Annun. Test (547) OC673 Non-Class lE Spare (555)

Spare (595)

In letter BLTG-467 dated September 29, 1980, General Electric was requested to furnish the following information:

l. The proper procedure for tightening the screws or nuts holding the certi-loose contact blocks to prevent voiding the product quality fication for Class lE selector switches and pushbuttons, and
2. any special requirements for both Class lE and non-Class lE selector switches and pushbuttons, i.e., torque, use of "locktite", etc.

Via a subsequent telephone call and letter, GE was requested to supply the following information:

1. The reason for the loose contact modules
2. An explanation of what Bechtel QC observed to be insufficiently long mounting screws used to secure the contact modules to the switch frames.

These apparently shorter than adequate screws do not permit the end of the screw to extend beyond the surface of the mounting frame.

It has been concluded that there may be some switches with loose contact modules in safety related circuits and that these contact modules could come loose if not repaired.

Bechtel Construction will check additional CR2940 switches and pushbuttons and an analysis of all the circuits having Class lE switches with loose contact modules will be completed.

Based on the location of such switches in safety related'circuits, Bechtel Project Engineering has concluded that this is potentially reportable under 10CFR50.55(e) .

Further, since the details of this report provide information relevant to the reporting requirements of 10CFR21, this correspondence is considered to also discharge any formal responsibility PPGL may have for reporting in compliance thereto.

Mr. Boyce H. Grier October 28, 1980 We expect to provide a final report on the deficiency and the corrective action taken in January, 1981.

Very truly yours, g2/7c~~~

N. W. Curtis Vice President-Engineering 6 Construction-Nuclear ARS:mcb cc: Mr. Victor Stello (15)

Director-Office of Inspection 6 Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. G. McDonald, Director Office of Management Information a Program Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. Robert M. Gallo U. S. Nuclear Regulatory Commission P. O. Box 52 Shickshinny, Pennsylvania 18655

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