ML19305B358: Difference between revisions
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{{#Wiki_filter:.._.-o-.._.~., | {{#Wiki_filter:.._.-o-.._.~., | ||
.o 7 77) | .o 7 77) | ||
. LICENSEE EVENT REPORT | . LICENSEE EVENT REPORT CONTROL BLOCK: l i | ||
CONTROL BLOCK: l i | |||
l l l l l | l l l l l | ||
.h l (PLEASE PRINT OR TYTE ALL REQUIRED INFORMATION) 66l@ | .h l (PLEASE PRINT OR TYTE ALL REQUIRED INFORMATION) 66l@ | ||
| Line 30: | Line 27: | ||
60 81 DOCKET NUMSER 68 69 EVENT DATE 74 75 REPORT CATE SO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h | 60 81 DOCKET NUMSER 68 69 EVENT DATE 74 75 REPORT CATE SO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h | ||
-o 121 l During Unit 3 refueling outage, a LLRT was performed on "A" feedwater inboard check l c,3, l valve 3-220-58A. The measured leakage was 1,104.51 SCFH, which exceeded the limit l g,,, ; for a single isolation valve (29.38 SCFH, Tech. Spec. 4.7.A). This was of mini =al l g,3, , safety significance since leakage measured through the outboard feedwater check valve l 016 l l Was belOV IGCh. Spec. limits and the feedwater line is Capable of being isolated by l o ,,; ; a motor operated valve upstream of the check valves. Similar event: 50-239/78-03. ; | -o 121 l During Unit 3 refueling outage, a LLRT was performed on "A" feedwater inboard check l c,3, l valve 3-220-58A. The measured leakage was 1,104.51 SCFH, which exceeded the limit l g,,, ; for a single isolation valve (29.38 SCFH, Tech. Spec. 4.7.A). This was of mini =al l g,3, , safety significance since leakage measured through the outboard feedwater check valve l 016 l l Was belOV IGCh. Spec. limits and the feedwater line is Capable of being isolated by l o ,,; ; a motor operated valve upstream of the check valves. Similar event: 50-239/78-03. ; | ||
o ta l l I 80 | o ta l l I 80 g g E CDE SU C E COMPONENT CODE SUB bOE S E | ||
g g E CDE SU C E COMPONENT CODE SUB bOE S E | |||
'ai 9 | 'ai 9 | ||
lS l A l@ ]@ l B l@ lV l A l L [V l E lX l@ l Cl@ l Al @ | lS l A l@ ]@ l B l@ lV l A l L [V l E lX l@ l Cl@ l Al @ | ||
10 11 12 13 18 19 20 | 10 11 12 13 18 19 20 | ||
,_ SEQUENTIAL 00CURRENCE REPORT REVISION LE R/R O EVENT YE AR REPORT NO. CODE TYPE N O. | ,_ SEQUENTIAL 00CURRENCE REPORT REVISION LE R/R O EVENT YE AR REPORT NO. CODE TYPE N O. | ||
h reg yu l218l0l 22 l-l 23 l0l0l6l 24 26 l/l 27 10 l 3 l 28 29 lLl 30 l-l 31 l 0l 32 | h reg yu l218l0l 22 l-l 23 l0l0l6l 24 26 l/l 27 10 l 3 l 28 29 lLl 30 l-l 31 l 0l 32 K N A CN ONP T M HOURS SB i POR B. $ P LIE MANUPA RER l33Al@l34'Zl@ l35 Z l@ lZl@ l0l0l0l0l lNl@ lN l@ lY l@ lC l6 l6 1547l@ | ||
K N A CN ONP T M HOURS SB i POR B. $ P LIE MANUPA RER l33Al@l34'Zl@ l35 Z l@ lZl@ l0l0l0l0l lNl@ lN l@ lY l@ lC l6 l6 1547l@ | |||
36 37 40 41 42 43 44 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS s t o l l Excessive leakage through feedwater check valve 3-220-58A was dte to worn seat /dise I 1 1il l arsembly pins, which prevent proper alimment of the dise to the seat. The seat / disc I | 36 37 40 41 42 43 44 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS s t o l l Excessive leakage through feedwater check valve 3-220-58A was dte to worn seat /dise I 1 1il l arsembly pins, which prevent proper alimment of the dise to the seat. The seat / disc I | ||
,,2i l assembly was replaced and the valve retested. Leakage was reduced to 0.520 SCFH. I i ; 31 l well below Tech. Spec. limits. ' The replacement assembly pins and bushings are made l | ,,2i l assembly was replaced and the valve retested. Leakage was reduced to 0.520 SCFH. I i ; 31 l well below Tech. Spec. limits. ' The replacement assembly pins and bushings are made l | ||
,,,,l from a hardened alloy. No further corrective action deemed necessary. I g g 80 | ,,,,l from a hardened alloy. No further corrective action deemed necessary. I g g 80 | ||
's'TAEY sPowER eTwtR STATUS h $EoYE8Y - | 's'TAEY sPowER eTwtR STATUS h $EoYE8Y - | ||
or$CovEnY oESCRiPTiON @ | or$CovEnY oESCRiPTiON @ | ||
1 15 l l H l@ l O l 0 l 0 l@l N/A l lBlhl Local Leak Rate Test l A TIVITY CC TENT EELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE | 1 15 l l H l@ l O l 0 l 0 l@l N/A l lBlhl Local Leak Rate Test l A TIVITY CC TENT EELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 1 | ||
l 61 l Z l @D CP RELEASE l Zl@l N/A l l N/A l 8 9 to 11 44 45 80 PERSONNEL EXPCSURE$ | |||
NUMBER TYPE CESCRIPTION 1 l 7 l l 0 l 0 l 0 l@l Z lhl N/A l | NUMBER TYPE CESCRIPTION 1 l 7 l l 0 l 0 l 0 l@l Z lhl N/A l | ||
* * '' '2 i3 ao PER$oNNE L iN3UR,,, | * * '' '2 i3 ao PER$oNNE L iN3UR,,, | ||
| Line 55: | Line 45: | ||
la j l 0 l 0 l 0 l@l NA l | la j l 0 l 0 l 0 l@l NA l | ||
: 9 ii i: ,, | : 9 ii i: ,, | ||
LCSS 08 OR OAMAGE TO FACILITY TYPE CESCRsPTION N/A | LCSS 08 OR OAMAGE TO FACILITY TYPE CESCRsPTION N/A 80M1 @ OG l 1 l 91 l Z l@l go 8 9 to NRC USE ONLY , | ||
80M1 @ OG l 1 l 91 l Z l@l go 8 9 to NRC USE ONLY , | |||
issyE DE CRIPTION 2 i og 9l I N hl N/A l llllllll ll Il l{ | issyE DE CRIPTION 2 i og 9l I N hl N/A l llllllll ll Il l{ | ||
10 68 69 80 5 T. A. Ciesla X-462 o | 10 68 69 80 5 T. A. Ciesla X-462 o | ||
| Line 63: | Line 51: | ||
. , - , , , - ~ , . - , - . | . , - , , , - ~ , . - , - . | ||
.. C, ,,'> DEVIATION REPORT A./ gy, gg, Commonwealth Edison - | .. C, ,,'> DEVIATION REPORT A./ gy, gg, Commonwealth Edison - | ||
STA UNIT YEAR N O. | STA UNIT YEAR N O. | ||
| Line 75: | Line 62: | ||
J hn Dunbar 2/24/80 FAILURE I INO N/A 05027 DATE | J hn Dunbar 2/24/80 FAILURE I INO N/A 05027 DATE | ||
# ESP _ONSIBLE SUPERVISOR PART 2 l OPERATING ENGINEERS COMMENTS To*al l a n 'n c a *krouch the "A" feedwater did not exceed the limit for throuch leakace civen in 4.7.A.2.e. However,the limit for single valve leakage was exceeded. | # ESP _ONSIBLE SUPERVISOR PART 2 l OPERATING ENGINEERS COMMENTS To*al l a n 'n c a *krouch the "A" feedwater did not exceed the limit for throuch leakace civen in 4.7.A.2.e. However,the limit for single valve leakage was exceeded. | ||
SAFETY-TYPE OF CEVIATION EVENT OF POTENTIAL TECH SPEC NON-REPORTABLE ANNUAL RELATED REPORTABLE OCCURRENCE PUBLI C INTEREST VI OL ATI ON OCCURRENCE REPGRTING WR ISSUED 14 DAY 10CFR21 YES YES | SAFETY-TYPE OF CEVIATION EVENT OF POTENTIAL TECH SPEC NON-REPORTABLE ANNUAL RELATED REPORTABLE OCCURRENCE PUBLI C INTEREST VI OL ATI ON OCCURRENCE REPGRTING WR ISSUED 14 DAY 10CFR21 YES YES L 30 DAY NOTI FI C ICN NO NO REPORTABLE CCCURRENCE ACTION ~ ITEM NO. PROMPT ON-SITE NOTIFICATION NUMBER R. M. Ragan 2/25/80 1400 | ||
L 30 DAY NOTI FI C ICN NO NO REPORTABLE CCCURRENCE ACTION ~ ITEM NO. PROMPT ON-SITE NOTIFICATION NUMBER R. M. Ragan 2/25/80 1400 | |||
^ | ^ | ||
rdi- 80-6/03L-0 N/A TITLE DATE TIME 24-HOUR NRC NOTIFICATION PROMPT OFF-SITE NOTIFICATION TPH F. Palmer 2/26/80 8:45 | rdi- 80-6/03L-0 N/A TITLE DATE TIME 24-HOUR NRC NOTIFICATION PROMPT OFF-SITE NOTIFICATION TPH F. Palmer 2/26/80 8:45 | ||
Latest revision as of 13:57, 1 February 2020
| ML19305B358 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/13/1980 |
| From: | Ciesla T COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML17192A580 | List: |
| References | |
| LER-80-006-03L-02, LER-80-6-3L-2, NUDOCS 8003190576 | |
| Download: ML19305B358 (2) | |
Text
.._.-o-.._.~.,
.o 7 77)
. LICENSEE EVENT REPORT CONTROL BLOCK: l i
l l l l l
.h l (PLEASE PRINT OR TYTE ALL REQUIRED INFORMATION) 66l@
- l o l 18 l9 lI l LLICENSEE lDlR l S ! 314 l@l CCDE 15 O l 0l -l 0 l LICENSE 0 l 0 NUMSER l 0 l 0 l - l 0 l O23l@I264 ! 1LICENSE l 1 l 1TYPE l 1JQl@l 57 CAT CON'T T
" 7 oIil 8
3$"c lL l@l015 l0 l0 10 12 l4 19 @l0l211l5l810]@l0l3l1I3l8l0l@
60 81 DOCKET NUMSER 68 69 EVENT DATE 74 75 REPORT CATE SO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h
-o 121 l During Unit 3 refueling outage, a LLRT was performed on "A" feedwater inboard check l c,3, l valve 3-220-58A. The measured leakage was 1,104.51 SCFH, which exceeded the limit l g,,, ; for a single isolation valve (29.38 SCFH, Tech. Spec. 4.7.A). This was of mini =al l g,3, , safety significance since leakage measured through the outboard feedwater check valve l 016 l l Was belOV IGCh. Spec. limits and the feedwater line is Capable of being isolated by l o ,,; ; a motor operated valve upstream of the check valves. Similar event: 50-239/78-03. ;
o ta l l I 80 g g E CDE SU C E COMPONENT CODE SUB bOE S E
'ai 9
lS l A l@ ]@ l B l@ lV l A l L [V l E lX l@ l Cl@ l Al @
10 11 12 13 18 19 20
,_ SEQUENTIAL 00CURRENCE REPORT REVISION LE R/R O EVENT YE AR REPORT NO. CODE TYPE N O.
h reg yu l218l0l 22 l-l 23 l0l0l6l 24 26 l/l 27 10 l 3 l 28 29 lLl 30 l-l 31 l 0l 32 K N A CN ONP T M HOURS SB i POR B. $ P LIE MANUPA RER l33Al@l34'Zl@ l35 Z l@ lZl@ l0l0l0l0l lNl@ lN l@ lY l@ lC l6 l6 1547l@
36 37 40 41 42 43 44 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS s t o l l Excessive leakage through feedwater check valve 3-220-58A was dte to worn seat /dise I 1 1il l arsembly pins, which prevent proper alimment of the dise to the seat. The seat / disc I
,,2i l assembly was replaced and the valve retested. Leakage was reduced to 0.520 SCFH. I i ; 31 l well below Tech. Spec. limits. ' The replacement assembly pins and bushings are made l
,,,,l from a hardened alloy. No further corrective action deemed necessary. I g g 80
's'TAEY sPowER eTwtR STATUS h $EoYE8Y -
or$CovEnY oESCRiPTiON @
1 15 l l H l@ l O l 0 l 0 l@l N/A l lBlhl Local Leak Rate Test l A TIVITY CC TENT EELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 1
l 61 l Z l @D CP RELEASE l Zl@l N/A l l N/A l 8 9 to 11 44 45 80 PERSONNEL EXPCSURE$
NUMBER TYPE CESCRIPTION 1 l 7 l l 0 l 0 l 0 l@l Z lhl N/A l
- * '2 i3 ao PER$oNNE L iN3UR,,,
NUM9ER D ESCRIPflON 41 1
la j l 0 l 0 l 0 l@l NA l
- 9 ii i: ,,
LCSS 08 OR OAMAGE TO FACILITY TYPE CESCRsPTION N/A 80M1 @ OG l 1 l 91 l Z l@l go 8 9 to NRC USE ONLY ,
issyE DE CRIPTION 2 i og 9l I N hl N/A l llllllll ll Il l{
10 68 69 80 5 T. A. Ciesla X-462 o
..... -,-- ..--- .u mi c . s
. , - , , , - ~ , . - , - .
.. C, ,,'> DEVIATION REPORT A./ gy, gg, Commonwealth Edison -
STA UNIT YEAR N O.
D 3 9 PART1lTlTLE OF DEVIATION OCCU RRED
)
l Fesd Water Check Valve Excessive Leakage 2/15 80 1p,1]
1 0 ;g SYSTEM AFFECTED PLANT CONDITIONS TESilNG 3200 g Feedwater- MODE Refuel ,,, , yw7 3 0 , te,o gywg3 0 YEs NC DESCRIPitON OF & VENT ;
During LLRT of feedwater inboard check valve 220-58A , the measured leakage was 1,104.511 SCFH, exceading the Tech Spec. limit of 29.38 SCFH for a single penetration of isolation valve.
DESCRIPTION OF CAUSE Unkriown OTHER APPLICABLE INFCRMATION Leakage was stooped bv feedwater outboard ch'eck valve 220-62A.
EQUIPMENT C YE5 DR NO. 'WR NO.
J hn Dunbar 2/24/80 FAILURE I INO N/A 05027 DATE
- ESP _ONSIBLE SUPERVISOR PART 2 l OPERATING ENGINEERS COMMENTS To*al l a n 'n c a *krouch the "A" feedwater did not exceed the limit for throuch leakace civen in 4.7.A.2.e. However,the limit for single valve leakage was exceeded.
SAFETY-TYPE OF CEVIATION EVENT OF POTENTIAL TECH SPEC NON-REPORTABLE ANNUAL RELATED REPORTABLE OCCURRENCE PUBLI C INTEREST VI OL ATI ON OCCURRENCE REPGRTING WR ISSUED 14 DAY 10CFR21 YES YES L 30 DAY NOTI FI C ICN NO NO REPORTABLE CCCURRENCE ACTION ~ ITEM NO. PROMPT ON-SITE NOTIFICATION NUMBER R. M. Ragan 2/25/80 1400
^
rdi- 80-6/03L-0 N/A TITLE DATE TIME 24-HOUR NRC NOTIFICATION PROMPT OFF-SITE NOTIFICATION TPH F. Palmer 2/26/80 8:45
_ REGION Iil DATE TIME TITLE DATE TIME
~
TGM J. Gilliom 2/26/80 8:45 REGION iiI & COL CATE TIME TITLE DATE TIME RESPONSI BLE COMP ANY OFFI CER INFORMED OF 10 C F R 21 CON 0iT!ONs aNO TwEv o oEPORT TO NPC
- TITLE DATE i f M r.
REVIEW AND COMPLETED /1 M. Wright 2/26/80
// OP E R AT I N G ENG (N Edn DATE CEP BY STATION REVIEW DATE . !
RESOLUTION APPROVEC AND / / M 8 4 O AUTHORIZED FOR DISTRIBUTION ' STATION SCPERINTENDENT l
60 3176 90 77 (Feau t s.3 3. t p
[ DA7E
- - - - - -