ML20064J229: Difference between revisions
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N5a:PCCit36S U. S. NUCLEAR REGULATCGY COMMISSION 87 77)~ | |||
LICENSEE EVENT REPORT (PLEASE P%lNT OR TYPE ALL REQUl EO INFORMATIONI CONTROL 8 LOCK: l i | |||
l l l l l e | |||
lh GTil8 I9P l ALICEN5EE l B !CCCE V l S l 1 l@l 14 0 l0 l- l blCENSE 0 l0 lNWVUER 0 l0 ]O l- l0 l 0 JS l@l4 26 l1 l1 l1 l1 l@l$7 wAT LICENSE TYPE JO l | |||
$8 lg 7 16 CON'T Q | |||
7 8 | |||
,"gCy 60 l L @l 0 l 5 l 0 l 0 l 0 l 3 l 314 @l1 1011 l 2 l 718 @l 751 l 212 l 21 7 l Ado l@ | |||
61 OOCK ET Nuv8 tR bd ed EVENT QATE le REPORT OATE EVENT DESCRIPTION AND PROSA8LE CONSECUENCES h 0 2 l During the performance of the containment isolation check valve surveillance test. I O 3 l the 1A RCP seal injection spring-loaded check valve was found to have an opening l 0 . l pressure of 11.5 PSID which is greater than the limit of 6 PSID. The valve l lO is; i sa'tisfied the isolation critetia in that the valve remained closed with less than l gl 1.2 PSID. The slightly increased pressure differential would have been I | |||
@l inconsequential in the operation of the RCP Seal Injection System. l a | |||
dl 7 8 9 80 I | |||
E COE SU8CO E COMPONENT CODE SUB 00E 5 E 7 | |||
O 9 8 | |||
l Si Di@ 1Il El@ l a l@ IJl v I Al Ll Vl El Xlh l Clh l Dlh 9 10 12 18 IW 20 | |||
. SEQUENTIAL OCCURRENCE REPORT R EVISION LE EVENT YEAR REPORT NO. CODE TYPE N O. | |||
@ ,ag'RiRO17 ls ! I-l 1016l1l lA Inlal bJ I-1 LeJ | |||
_ 28 22 23 24 26 27 M 29 3G 31 32 K N AC ON ON P NT M HOURS 58 i POR h 8. St.,PPLI MAN P CT RER I33 vl@lz 34 l@ (z_J@ | |||
JS | |||
[367J@ l0101ofol 21 40 W@ | |||
43 l_NJ@ | |||
42 l.aj@ | |||
43 lxlololol@ | |||
44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS ITTT11 The incident apparently resulted from excess force on the check valve closing I g] spring. The spring retainer was machined 5/64 inch (with manufactitrer annrovn1) I | |||
,I 3l to expand the spring and lower the opening setpoint. The valve was retested and iti | |||
, ., l operated satisfactorily at 3.3 PSID. l i 4 I l 7 8 9 80 ST % POWER OTHER STATUS DIS RY DISCOVERY DESCRIPTION y [G_j@ l0l0l0l@l N/A l lBl@l Surveillance test l A T1vtTV CO TENT CE LE ASE D OPmELEASE AMOUNT OF ACTivtTY LOCATION OF RELEASE W l Z l @ [_Zj@l 10 N/A 44 l l 46 N/A 80 l | |||
7 8 9 11 PERSONNEL EXPC50RES NUM8ER TYPE CESCRIPTION 7 | |||
l010l0l@lZl@l N/A l PERSONNE L INJURIES NuveER DESCRIPTION i | |||
a8 .1010101@l N/A l 7 9 11 12 80 i 9 7 E C | |||
[_Zj@l,ESCR PT ON N/A h l 7 8 9 to 80 DE CRIPTION | |||
* ISSUE 2 O N/A I llllllll!!Ifl} | |||
7 8 9 10 68 69 80. ; | |||
NAME OF PREPARER | |||
. A. linR PHONE: | |||
412-643-1258 | |||
{}} |
Revision as of 14:58, 6 January 2021
ML20064J229 | |
Person / Time | |
---|---|
Site: | Beaver Valley |
Issue date: | 12/22/1978 |
From: | Werling J DUQUESNE LIGHT CO. |
To: | |
Shared Package | |
ML20064J198 | List: |
References | |
LER-78-061-03L, LER-78-61-3L, NUDOCS 7812290235 | |
Download: ML20064J229 (1) | |
Text
'
N5a:PCCit36S U. S. NUCLEAR REGULATCGY COMMISSION 87 77)~
LICENSEE EVENT REPORT (PLEASE P%lNT OR TYPE ALL REQUl EO INFORMATIONI CONTROL 8 LOCK: l i
l l l l l e
lh GTil8 I9P l ALICEN5EE l B !CCCE V l S l 1 l@l 14 0 l0 l- l blCENSE 0 l0 lNWVUER 0 l0 ]O l- l0 l 0 JS l@l4 26 l1 l1 l1 l1 l@l$7 wAT LICENSE TYPE JO l
$8 lg 7 16 CON'T Q
7 8
,"gCy 60 l L @l 0 l 5 l 0 l 0 l 0 l 3 l 314 @l1 1011 l 2 l 718 @l 751 l 212 l 21 7 l Ado l@
61 OOCK ET Nuv8 tR bd ed EVENT QATE le REPORT OATE EVENT DESCRIPTION AND PROSA8LE CONSECUENCES h 0 2 l During the performance of the containment isolation check valve surveillance test. I O 3 l the 1A RCP seal injection spring-loaded check valve was found to have an opening l 0 . l pressure of 11.5 PSID which is greater than the limit of 6 PSID. The valve l lO is; i sa'tisfied the isolation critetia in that the valve remained closed with less than l gl 1.2 PSID. The slightly increased pressure differential would have been I
@l inconsequential in the operation of the RCP Seal Injection System. l a
dl 7 8 9 80 I
E COE SU8CO E COMPONENT CODE SUB 00E 5 E 7
O 9 8
l Si Di@ 1Il El@ l a l@ IJl v I Al Ll Vl El Xlh l Clh l Dlh 9 10 12 18 IW 20
. SEQUENTIAL OCCURRENCE REPORT R EVISION LE EVENT YEAR REPORT NO. CODE TYPE N O.
@ ,ag'RiRO17 ls ! I-l 1016l1l lA Inlal bJ I-1 LeJ
_ 28 22 23 24 26 27 M 29 3G 31 32 K N AC ON ON P NT M HOURS 58 i POR h 8. St.,PPLI MAN P CT RER I33 vl@lz 34 l@ (z_J@
JS
[367J@ l0101ofol 21 40 W@
43 l_NJ@
42 l.aj@
43 lxlololol@
44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS ITTT11 The incident apparently resulted from excess force on the check valve closing I g] spring. The spring retainer was machined 5/64 inch (with manufactitrer annrovn1) I
,I 3l to expand the spring and lower the opening setpoint. The valve was retested and iti
, ., l operated satisfactorily at 3.3 PSID. l i 4 I l 7 8 9 80 ST % POWER OTHER STATUS DIS RY DISCOVERY DESCRIPTION y [G_j@ l0l0l0l@l N/A l lBl@l Surveillance test l A T1vtTV CO TENT CE LE ASE D OPmELEASE AMOUNT OF ACTivtTY LOCATION OF RELEASE W l Z l @ [_Zj@l 10 N/A 44 l l 46 N/A 80 l
7 8 9 11 PERSONNEL EXPC50RES NUM8ER TYPE CESCRIPTION 7
l010l0l@lZl@l N/A l PERSONNE L INJURIES NuveER DESCRIPTION i
a8 .1010101@l N/A l 7 9 11 12 80 i 9 7 E C
[_Zj@l,ESCR PT ON N/A h l 7 8 9 to 80 DE CRIPTION
- ISSUE 2 O N/A I llllllll!!Ifl}
7 8 9 10 68 69 80. ;
NAME OF PREPARER
. A. linR PHONE:
412-643-1258
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