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| issue date = 04/07/1976
| issue date = 04/07/1976
| title = LER 76-016-00 for Dresden 2 Regarding a Discovery of a Through-Wall Crack in the 14-Inch HPCI Sensitized Stainless Steel Safe-End
| title = LER 76-016-00 for Dresden 2 Regarding a Discovery of a Through-Wall Crack in the 14-Inch HPCI Sensitized Stainless Steel Safe-End
| author name = Stephenson B B
| author name = Stephenson B
| author affiliation = Commonwealth Edison Co
| author affiliation = Commonwealth Edison Co
| addressee name = Keppler J G
| addressee name = Keppler J
| addressee affiliation = NRC/RGN-III
| addressee affiliation = NRC/RGN-III
| docket = 05000237
| docket = 05000237
Line 17: Line 17:


=Text=
=Text=
{{#Wiki_filter:,. Commonwealth Ason Dresden Nuclear R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 BBS Ltr. #76-290 April 7, 19 76 Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations -Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Illinois 60137 Enclosed please find Reportable Occurrence number 50-237/1976-16. This report is being submitted to your office in accordance with.the Dresden Nuclear Power Station Technical Specifications, Section 6.6.B. BBS:aw Enclosure cc: Director of Inspection & Enforcement Director of Manage*ment Information & Program Control Fiie/NRC REPORT *
{{#Wiki_filter:,.
* ENSEE EVENT ** CONTROL BLOCK: .... I __._I ____.I ___.I [PLEASE PRINT ALL REQUIRED INFORMATION] LICENSEE NAME @EJ IIIJ..l:PI £1 S.IJ I 7 8 9 14 REPORT CATEGORY TYPE @ill CON'T I I I
Commonwealth Ason Dresden Nuclear Pow~ation R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 BBS Ltr. #76-290                           April 7, 19 76 Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ell~n, Illinois               60137 Enclosed please find Reportable Occurrence number 50-237/1976-16. This report is being submitted to your office in accordance with.the Dresden Nuclear Power Station Technical Specifications, Section 6.6.B.
* lI..1 7 8 57 5B 5!:) . EVENT DESCRIPTION 1 6 , LICENSE NUMBER LICENSE TYPE 10101-10101010101-10101 14 I 1 I 11 I r I t I 15 25 26 30 REPORT SOURCE LhJ 60 * , DOCKET NUMBER EVENT DATE 1013121417101 61 68 69 74 lol2l I :Dvg1NG-AN OF TH'G UJJIT-J_ PR1rr1ARY 7 8 9 EVENT TYPE 1011 I 31 32 REPORT OATL 10 14-I o 17 IClJ I I 75 80 s YS'I&#xa3; fY1 9 A 80 @@) I -WALL CRACK Dl$CO\ICQ,ED IN THE lLf--,f NCH HPCI S*"N$111ZEDI 7 8 9 . 80 lol41 I SIA I IV l-&#xa3;S.<; STEEL I 80 7 8 9 I \cJAT9e A!\/D LDCttrcP 01R&#xa3;cTL.y fff IHf 80-rrorvt or !Hf P1PE. ?./x 7 8 9. > INCH I 80 IQIID f="Rom THE Sfl.F'&#xa3;-eAJO-TO-P1P* WEL(>. 1Cf7b-1<0) 7 8 9 SYSTEM . CODE @0 ICIEI 7 8 9 10 CAUSE CODE 11 CAUSE DESCRIPTION COMPONENT CODE IPlt IPIE:IXIXI 12 17 PRIME COMPONENT SUPPLIER lt{J 43 COMPONENT MANUFACTURER IB 1011 15"1 44. 47 VIOLATION lNJ 48 . 80 "11-1&#xa3; C..RACKEO S'Ar::*-END WAS C..lJT OUI ANifJJ SENI TD 8ATTELU! trlEmOR/ AL , . . 7 8 9 . . _____ 80 I tNS'Trf'IJTE'-C.OJ..UrYlBVS .. Pf2..tL.1 m1_Ntl1Z-Y Rt:'SL>_'1-"TSI 7 8 9 80 I 11\101 c..a.-i:o THc TH*wuc.H-wALI-CR.ACK lOUITtL> 3/g 1 NCH FRcM IHE' W.J!l5; I 7 8 9 FACILITY METHOD OF ltf-rfk.tfct> S HCe'T) 80 STATUS % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE] UiJ le>IOIOI NA l.ill 7 8 9 10 12 13 44 45 FORM OF ACTIVITY CONTENT rn RELEASED OF RELEASE AMOUNT OF ACTIVITY l6j _I __ N_A ----'-----' LOCATION OF RELEASE 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION IT@ 1010101 1&#xa3;1 Nii 7 8 9 11 12 13 80 PERS'ONNEL INJURIES NUMBER DESCRIPTION . EE]lololol NA 7 89 11 ............ 80 OFFSITE CONSEQUENCES NII 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION ............ 7 8 9 10 80 PUBLICITY @?] 7 8 9 80 ADDITIONAL FACTORS IT@ NA 7 8 9 80 PHONE: cx-r. s: GPO 881
BBS:aw Enclosure cc:   Director of Inspection & Enforcement Director of Manage*ment Information & Program Control Fiie/NRC
* 667 CAUSE DESCRIPTION (continued) -1/4 in-ch-long -at the O.D: and 2 inches long at the running ferentially. Two axial cracks between 1/2 inch and 1 inch in length were also found on the I.D. surface, emanating from the safe ... end-to-pipe weld. Analysis of the!?e cracks has not yee been completed. An update report will be submitted when results become available. The cracked safe-end was from SA-182 F316 stainless steel and was unclad. The safe-end had been furnace-sensitized during manufacture. The replacement safe-end will be either SA-182 F316L less steel or SA-105 carbon steel.}}
* ENSEE EVENT REPORT                                *
                      **                              I CONTROL BLOCK: ....~----1..__.._I         __._I____.I___.I                             [PLEASE PRINT ALL REQUIRED INFORMATION]
1                            6 LICENSEE                                                                                         LICENSE                EVENT NAME                         ,              LICENSE NUMBER                                      TYPE                  TYPE
  @EJ IIIJ..l:PI &#xa3;1 S.IJ I                          10101-10101010101-10101 14 I 1 I 11 I r I t I 1011 I 7   8 9                                   14     15                                                    25    26                    30      31    32 REPORT        REPORT CATEGORY           TYPE       SOURCE    * ,        DOCKET NUMBER                              EVENT DATE                        REPORT OATL
  @ill CON'T I I I *lI..1                         LhJ      101s101-101~13171                              1013121417101                    10 14- I o 17 IClJ I ~ I 7   8           57         5B         5!:)       60     61                                       68     69                       74     75                          80
        . EVENT DESCRIPTION lol2l I :Dvg1NG-               AN         IN~~/.?..VtC<=        IN~Pt:CflotJ              OF TH'G UJJIT-J_ PR1rr1ARY                   s YS'I&#xa3; fY1 9 A 7    8 9                                                                                                                                                              80
  @@) I rH~OUG-H -WALL                             CRACK           we~ Dl$CO\ICQ,ED IN THE lLf- -,f NCH                               HPCI S"N$111ZEDI 7   8 9                           .                                                                                                                                 80 lol41   I SIA I IV l-&#xa3;S.<;           STEEL                                                                                                                                   I 7   8 9                                                                                                                                                               80
  ~      I \cJAT9e             A!\/D         wA~ LDCttrcP               01R&#xa3;cTL.y fff IHf 80-rrorvt or !Hf P1PE.                                     ?./x INCH              I 7   8 9.                                                                                                                                         >                   80 IQIID       f="Rom         THE         Sfl.F'&#xa3;-eAJO-TO-P1P                         WEL(>.                         1Cf7b-     1<0) 7   8 9                                                                           PRIME                                                                              80 SYSTEM         CAUSE                                                COMPONENT              COMPONENT
            . CODE         CODE                  COMPONENT CODE                  SUPPLIER            MANUFACTURER          VIOLATION
  @0 ICIEI ~                                IPlt IPIE:IXIXI                         lt{J           IB 1011 15"147              lNJ 48    .
7 8 9 10                      11        12                            17            43          44.
CAUSE DESCRIPTION
  ~.I "11-1&#xa3;               C..RACKEO S'Ar::-END                     WAS C..lJT             OUI       ANifJJ SENI TD             8ATTELU! trlEmOR/ AL , .
.7   8 9                             .             .                           ~-----                              _ _ _ _ _____,._,,...~~ 80
  ~      I tNS'Trf'IJTE'- C.OJ..UrYlBVS                 l.ABo~Aro~1S cro~.. M&#xa3;T81-L.J.H~&ICAl. ANA~Y5!~. Pf2..tL.1 m1_Ntl1Z-Y Rt:'SL>_'1-"TSI 7   8 9                                                                                                                                                               80
  ~      I 11\101 c..a.-i:o     IH~ THc TH*wuc.H-wALI- CR.ACK lOUITtL> 3/g 1NCH FRcM IHE' WE~P W.J!l5;                                                                       I 7   8 9     FACILITY                                                                   METHOD OF                           (~t:E: ltf-rfk.tfct> S HCe'T)           80 STATUS               % POWER                     OTHER STATUS               DISCOVERY                       DISCOVERY DESCRIPTION EE]           UiJ               le>IOIOI                         NA                         l.ill 7   8       9                 10               12 13                               44       45 FORM OF ACTIVITY         CONTENT rn 7    8 RELEASED 9
                ~
OF RELEASE l6j 10
_I_ _
11 AMOUNT OF ACTIVITY N_A----'-----'
44        45 LOCATION OF RELEASE 80 PERSONNEL EXPOSURES NUMBER             TYPE         DESCRIPTION IT@     1010101 1&#xa3;1                                       Nii 7     8 9                 11     12         13                                                                                                                       80 PERS'ONNEL INJURIES NUMBER               DESCRIPTION     .
EE]lololol11 7 89 NA 1~2~~~~~.-~~~~~~~~~~~~~~~~~~~~~~~~~~~                                                                                              ............
80 OFFSITE CONSEQUENCES
~*                        NII 7   8 9                                                                                                                                                             80 LOSS OR DAMAGE TO FACILITY TYPE       DESCRIPTION EI~l~                ~_,_JJ_~"'--~~~~~~~~~~~~~~~~~~~-----..,~~~. . . . . .
7     8 9           10                                                                                                                                               80 PUBLICITY
@?]
7   8 9                                                                                                                                                             80 ADDITIONAL FACTORS IT@                       NA 7     8 9                                                                                                                                                             80 PHONE: cx-r.       .l.~ s:
GPO 881
* 667
 
CAUSE DESCRIPTION (continued)
-1/4 in-ch- long -at the O.D: and 2 inches long at the I.D~, running circum-ferentially. Two axial cracks between 1/2 inch and 1 inch in length were also found on the I.D. surface, emanating from the safe ... end-to-pipe weld.
Analysis of the!?e cracks has not yee been completed. An update report will be submitted when results become available.
The cracked safe-end was manufac~ured from SA-182 F316 stainless steel and was   unclad. The safe-end had been furnace-sensitized during manufacture. The replacement safe-end will be either SA-182 F316L stain-less steel or   SA-105 carbon steel.}}

Latest revision as of 19:08, 29 October 2019

LER 76-016-00 for Dresden 2 Regarding a Discovery of a Through-Wall Crack in the 14-Inch HPCI Sensitized Stainless Steel Safe-End
ML17252B443
Person / Time
Site: Dresden Constellation icon.png
Issue date: 04/07/1976
From: Stephenson B
Commonwealth Edison Co
To: James Keppler
NRC/RGN-III
References
BBS Ltr. #76-290 LER 76-016-00
Download: ML17252B443 (3)
v • d • e


Text

,.

Commonwealth Ason Dresden Nuclear Pow~ation R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 BBS Ltr. #76-290 April 7, 19 76 Mr. James G. Keppler, Regional Director Directorate of Regulatory Operations - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ell~n, Illinois 60137 Enclosed please find Reportable Occurrence number 50-237/1976-16. This report is being submitted to your office in accordance with.the Dresden Nuclear Power Station Technical Specifications, Section 6.6.B.

BBS:aw Enclosure cc: Director of Inspection & Enforcement Director of Manage*ment Information & Program Control Fiie/NRC

  • ENSEE EVENT REPORT *
    • I CONTROL BLOCK: ....~----1..__.._I __._I____.I___.I [PLEASE PRINT ALL REQUIRED INFORMATION]

1 6 LICENSEE LICENSE EVENT NAME , LICENSE NUMBER TYPE TYPE

@EJ IIIJ..l:PI £1 S.IJ I 10101-10101010101-10101 14 I 1 I 11 I r I t I 1011 I 7 8 9 14 15 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE * , DOCKET NUMBER EVENT DATE REPORT OATL

@ill CON'T I I I *lI..1 LhJ 101s101-101~13171 1013121417101 10 14- I o 17 IClJ I ~ I 7 8 57 5B 5!:) 60 61 68 69 74 75 80

. EVENT DESCRIPTION lol2l I :Dvg1NG- AN IN~~/.?..VtC<= IN~Pt:CflotJ OF TH'G UJJIT-J_ PR1rr1ARY s YS'I£ fY1 9 A 7 8 9 80

@@) I rH~OUG-H -WALL CRACK we~ Dl$CO\ICQ,ED IN THE lLf- -,f NCH HPCI S"N$111ZEDI 7 8 9 . 80 lol41 I SIA I IV l-£S.<; STEEL I 7 8 9 80

~ I \cJAT9e A!\/D wA~ LDCttrcP 01R£cTL.y fff IHf 80-rrorvt or !Hf P1PE.  ?./x INCH I 7 8 9. > 80 IQIID f="Rom THE Sfl.F'£-eAJO-TO-P1P WEL(>. 1Cf7b- 1<0) 7 8 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT

. CODE CODE COMPONENT CODE SUPPLIER MANUFACTURER VIOLATION

@0 ICIEI ~ IPlt IPIE:IXIXI lt{J IB 1011 15"147 lNJ 48 .

7 8 9 10 11 12 17 43 44.

CAUSE DESCRIPTION

~.I "11-1£ C..RACKEO S'Ar::-END WAS C..lJT OUI ANifJJ SENI TD 8ATTELU! trlEmOR/ AL , .

.7 8 9 . . ~----- _ _ _ _ _____,._,,...~~ 80

~ I tNS'Trf'IJTE'- C.OJ..UrYlBVS l.ABo~Aro~1S cro~.. M£T81-L.J.H~&ICAl. ANA~Y5!~. Pf2..tL.1 m1_Ntl1Z-Y Rt:'SL>_'1-"TSI 7 8 9 80

~ I 11\101 c..a.-i:o IH~ THc TH*wuc.H-wALI- CR.ACK lOUITtL> 3/g 1NCH FRcM IHE' WE~P W.J!l5; I 7 8 9 FACILITY METHOD OF (~t:E: ltf-rfk.tfct> S HCe'T) 80 STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION EE] UiJ le>IOIOI NA l.ill 7 8 9 10 12 13 44 45 FORM OF ACTIVITY CONTENT rn 7 8 RELEASED 9

~

OF RELEASE l6j 10

_I_ _

11 AMOUNT OF ACTIVITY N_A----'-----'

44 45 LOCATION OF RELEASE 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION IT@ 1010101 1£1 Nii 7 8 9 11 12 13 80 PERS'ONNEL INJURIES NUMBER DESCRIPTION .

EE]lololol11 7 89 NA 1~2~~~~~.-~~~~~~~~~~~~~~~~~~~~~~~~~~~ ............

80 OFFSITE CONSEQUENCES

~* NII 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION EI~l~ ~_,_JJ_~"'--~~~~~~~~~~~~~~~~~~~-----..,~~~. . . . . .

7 8 9 10 80 PUBLICITY

@?]

7 8 9 80 ADDITIONAL FACTORS IT@ NA 7 8 9 80 PHONE: cx-r. .l.~ s:

GPO 881

  • 667

CAUSE DESCRIPTION (continued)

-1/4 in-ch- long -at the O.D: and 2 inches long at the I.D~, running circum-ferentially. Two axial cracks between 1/2 inch and 1 inch in length were also found on the I.D. surface, emanating from the safe ... end-to-pipe weld.

Analysis of the!?e cracks has not yee been completed. An update report will be submitted when results become available.

The cracked safe-end was manufac~ured from SA-182 F316 stainless steel and was unclad. The safe-end had been furnace-sensitized during manufacture. The replacement safe-end will be either SA-182 F316L stain-less steel or SA-105 carbon steel.

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