ML19351G422: Difference between revisions
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(PLEASE PRINT OR TYPE ALL REQUIREO INFORMATIONI l l 11 11 11 11 l@lsicarw@ | (PLEASE PRINT OR TYPE ALL REQUIREO INFORMATIONI l l 11 11 11 11 l@lsicarw@ | ||
* [o li j lP I A l 3 IV 1511 l@l010 l- l 010101010 i4 ts uceNst % se.= | * [o li j lP I A l 3 IV 1511 l@l010 l- l 010101010 i4 ts uceNst % se.= | ||
l- l0 [0 :sl@l4 :s uceNss rvet a r aa vCsNsta ::ce CCN'T f'o771 i 8 | l- l0 [0 :sl@l4 :s uceNss rvet a r aa vCsNsta ::ce CCN'T f'o771 i 8 37C"',c W@l 015101010131314 l@l 1 l I l 1 l 71310 @l 0 (4 68 GOCKET %M8( A mi 63 tvENrcArg 14 '% REPORT QAtt 30 j | ||
37C"',c W@l 015101010131314 l@l 1 l I l 1 l 71310 @l 0 (4 68 GOCKET %M8( A mi 63 tvENrcArg 14 '% REPORT QAtt 30 j | |||
EVENT QESCRIPTICN AND PRCBA8tE CCNSECUENCES O'o1403 h g lAt When the [ | EVENT QESCRIPTICN AND PRCBA8tE CCNSECUENCES O'o1403 h g lAt When the [ | ||
to # 2 ) llow pressure bistable { BS-MS-485) intermittent 1v trinning and resetting. | to # 2 ) llow pressure bistable { BS-MS-485) intermittent 1v trinning and resetting. | ||
| Line 32: | Line 30: | ||
[ o ia ! loperational and 2 pre-operational. COM*. V ALV E 7 8 9 CAUSE CAUSE SU8CCCC SU8 CODE SYSTEM COMPCNENT CCDE CCCE CCCE SU8COCE Zl Zl@ [2[j@ l Z l @ | [ o ia ! loperational and 2 pre-operational. COM*. V ALV E 7 8 9 CAUSE CAUSE SU8CCCC SU8 CODE SYSTEM COMPCNENT CCDE CCCE CCCE SU8COCE Zl Zl@ [2[j@ l Z l @ | ||
la#91 IS IF l @ {A_j @ t2lA l @ l Zl Zl Zl Zl 13 18 19 ;0 REVtsiCN 9 10 33 CCOU R R ENCE RE PORT 2 8 SE QUEN'1 AL TYPE No. | la#91 IS IF l @ {A_j @ t2lA l @ l Zl Zl Zl Zl 13 18 19 ;0 REVtsiCN 9 10 33 CCOU R R ENCE RE PORT 2 8 SE QUEN'1 AL TYPE No. | ||
CCOE | CCOE EVENT YEAR AEPCRT NO. | ||
EVENT YEAR AEPCRT NO. | |||
19 l 9 I lx I l--J l 01 LERIRO | 19 l 9 I lx I l--J l 01 LERIRO | ||
@ ?fg i 8i Of L-J 10 19 l' :sI .Ld tr :s 29 ao at 22 2a :4 zi :: MANUF CTLRER 58 i FC 8. SLP*L W@ W@ l Zl 919l 9l@ | @ ?fg i 8i Of L-J 10 19 l' :sI .Ld tr :s 29 ao at 22 2a :4 zi :: MANUF CTLRER 58 i FC 8. SLP*L W@ W@ l Zl 919l 9l@ | ||
| Line 40: | Line 36: | ||
T T N A CN C y@ l 0 10 l 7 i _40l W@ | T T N A CN C y@ l 0 10 l 7 i _40l W@ | ||
(Ju@l Zl@ lA jg 44 47 | (Ju@l Zl@ lA jg 44 47 | ||
** a2 43 36 37 JJ J4 23 CAUSE CESCRIPTICN AND CORRECTIVE ACTICNS the @ status nanel himself, but I | ** a2 43 36 37 JJ J4 23 CAUSE CESCRIPTICN AND CORRECTIVE ACTICNS the @ status nanel himself, but I liio1IThis incident occurred because the SOS did not look at The recnired rendi a 1 onerations. | ||
It it ? l&ok the word of another ner<:nn involved in olant J distribution is beine used to indicate the need to recheck important y:,fjl incident report .1 f,l,,3)levolutionssuchas-trinninebistables. I so l | |||
liio1IThis incident occurred because the SOS did not look at The recnired rendi a 1 | |||
onerations. | |||
It it ? l&ok the word of another ner<:nn involved in olant J distribution is beine used to indicate the need to recheck important y:,fjl incident report .1 | |||
f,l,,3)levolutionssuchas-trinninebistables. I so l | |||
Ii 6 4 II T 8 9 V ~ Ot:COVERY DESCRIPTION CTHER STATUS is j STA | Ii 6 4 II T 8 9 V ~ Ot:COVERY DESCRIPTION CTHER STATUS is j STA | ||
* %POWEA Operator observation Ii i s j lC l@ l 01 01 Ol@lStartue in procrebs W@l i | * %POWEA Operator observation Ii i s j lC l@ l 01 01 Ol@lStartue in procrebs W@l i | ||
ACTivt *V CONTENT p!LEAsiD 08 PELE A$E As.eOUNT CF ACTIVITY LOCATION OF RELEASE n/^ 'I n/A I I' Bi Lij @ Li@l l | |||
ACTivt *V CONTENT p!LEAsiD 08 PELE A$E As.eOUNT CF ACTIVITY LOCATION OF RELEASE n/^ 'I n/A I I' Bi Lij @ Li@l | 1 63 44 45 l 7 3 3 30 ft | ||
*ERSCNNE;. E XPC$bO ES TYPE OESCRIPTICN 1 | *ERSCNNE;. E XPC$bO ES TYPE OESCRIPTICN 1 | ||
% v8ER N/A 8a I l > l 10 ! O I O !@l Z i@l'' | % v8ER N/A 8a I l > l 10 ! O I O !@l Z i@l'' | ||
! ,s.sCNNA',ditsCtscuencNh Nevsfa 1 | ! ,s.sCNNA',ditsCtscuencNh Nevsfa 1 | ||
l 3/A 30 i | l 3/A 30 i | ||
FIl101010!@l 7 8 9 .it :: | FIl101010!@l 7 8 9 .it :: | ||
t0$$ CF CR CauAGE TO FactLITY l | t0$$ CF CR CauAGE TO FactLITY l NE OE sCA PT'ON i | ||
NE OE sCA PT'ON i | |||
N/A 30 i li191l_Zi@l 4 9 13 e | N/A 30 i li191l_Zi@l 4 9 13 e | ||
7 is; ,g D E SC R< piton l: I I l l l l l_ l l I 1 !30.- l{ | 7 is; ,g D E SC R< piton l: I I l l l l l_ l l I 1 !30.- l{ | ||
fil~il l.j hl N/A | fil~il l.j hl N/A 68 69 7 8 '7 IQ | ||
68 69 7 8 '7 IQ | |||
,N m E: | ,N m E: | ||
412-a3-a525 3 | 412-a3-a525 3 | ||
- S Lacey 810 2 2 8 0g o PRE ,*RtR | - S Lacey 810 2 2 8 0g o PRE ,*RtR | ||
Attachment To LER 80-94/99X Beaver Valley Power Station l Duquesne Light Company ' | Attachment To LER 80-94/99X Beaver Valley Power Station l Duquesne Light Company ' | ||
Docket No. 50-334 During normal startup operations, a steam line low pressure bistable [BS-MS-485] | Docket No. 50-334 During normal startup operations, a steam line low pressure bistable [BS-MS-485] | ||
began to intermittently trip and reset. The Nuclear Shift Supervisor (NSS) notified the Station Operating Supervisor (SOS) of the problem. The plant was in startup Mode 2 so the SOS went to the control room to be of assistance. The SOS asked the Nuclear Shif t Foreman what channel was alarming and was informed that it was channel [P-MS-484]. The SOS then contacted the control room from the process racks to verify that the status light came on when the bistable was tripped. When communication was noted, the SOS placed channel [P-MS-484] in trip. Since [P-MS-485] was the channel that was tripping, the logic made up (2/3) for a low steam line pressure safety injection. | began to intermittently trip and reset. The Nuclear Shift Supervisor (NSS) notified the Station Operating Supervisor (SOS) of the problem. The plant was in startup Mode 2 so the SOS went to the control room to be of assistance. The SOS asked the Nuclear Shif t Foreman what channel was alarming and was informed that it was channel [P-MS-484]. The SOS then contacted the control room from the process racks to verify that the status light came on when the bistable was tripped. When communication was noted, the SOS placed channel [P-MS-484] in trip. Since [P-MS-485] was the channel that was tripping, the logic made up (2/3) for a low steam line pressure safety injection. | ||
The personnel involved in this incident were reprimanded and re-instructed via this LER and verbally of the importance of re-checking the steps necessary to complete an important evolution. | The personnel involved in this incident were reprimanded and re-instructed via this LER and verbally of the importance of re-checking the steps necessary to complete an important evolution. | ||
a}} | a}} | ||
Latest revision as of 23:26, 30 January 2020
| ML19351G422 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 02/13/1981 |
| From: | Lacey W DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML19351G390 | List: |
| References | |
| LER-80-094-99X, LER-80-94-99X, NUDOCS 8102230677 | |
| Download: ML19351G422 (2) | |
Text
U. S. NUCLEAR REGULATORY COMMISSION NRC FOiM 364
({77) LICENSEE EVENT Rc. PORT O CCNTROL SLCCK: l i
l l- l 1 l lh e
(PLEASE PRINT OR TYPE ALL REQUIREO INFORMATIONI l l 11 11 11 11 l@lsicarw@
- [o li j lP I A l 3 IV 1511 l@l010 l- l 010101010 i4 ts uceNst % se.=
l- l0 [0 :sl@l4 :s uceNss rvet a r aa vCsNsta ::ce CCN'T f'o771 i 8 37C"',c W@l 015101010131314 l@l 1 l I l 1 l 71310 @l 0 (4 68 GOCKET %M8( A mi 63 tvENrcArg 14 '% REPORT QAtt 30 j
EVENT QESCRIPTICN AND PRCBA8tE CCNSECUENCES O'o1403 h g lAt When the [
to # 2 ) llow pressure bistable { BS-MS-485) intermittent 1v trinning and resetting.
ble, they operatedj f o # A ) l SOS accompanied the operator to the process racks to trip the bista i 3.5.2 and [
l o i s j lthe wrong channel (BS-MS-4841, in violation of Technical Specificat ons The public health and safety was not iconardized since all l ECCS Systems.
g 13.5.3 15 Safety iniections to date: l l [TTT1 lactions occurred in the most ecnservative manner. l 80
[ o ia ! loperational and 2 pre-operational. COM*. V ALV E 7 8 9 CAUSE CAUSE SU8CCCC SU8 CODE SYSTEM COMPCNENT CCDE CCCE CCCE SU8COCE Zl Zl@ [2[j@ l Z l @
la#91 IS IF l @ {A_j @ t2lA l @ l Zl Zl Zl Zl 13 18 19 ;0 REVtsiCN 9 10 33 CCOU R R ENCE RE PORT 2 8 SE QUEN'1 AL TYPE No.
CCOE EVENT YEAR AEPCRT NO.
19 l 9 I lx I l--J l 01 LERIRO
@ ?fg i 8i Of L-J 10 19 l' :sI .Ld tr :s 29 ao at 22 2a :4 zi :: MANUF CTLRER 58 i FC 8. SLP*L W@ W@ l Zl 919l 9l@
E C HCUR$
T T N A CN C y@ l 0 10 l 7 i _40l W@
(Ju@l Zl@ lA jg 44 47
- a2 43 36 37 JJ J4 23 CAUSE CESCRIPTICN AND CORRECTIVE ACTICNS the @ status nanel himself, but I liio1IThis incident occurred because the SOS did not look at The recnired rendi a 1 onerations.
It it ? l&ok the word of another ner<:nn involved in olant J distribution is beine used to indicate the need to recheck important y:,fjl incident report .1 f,l,,3)levolutionssuchas-trinninebistables. I so l
Ii 6 4 II T 8 9 V ~ Ot:COVERY DESCRIPTION CTHER STATUS is j STA
- %POWEA Operator observation Ii i s j lC l@ l 01 01 Ol@lStartue in procrebs W@l i
ACTivt *V CONTENT p!LEAsiD 08 PELE A$E As.eOUNT CF ACTIVITY LOCATION OF RELEASE n/^ 'I n/A I I' Bi Lij @ Li@l l
1 63 44 45 l 7 3 3 30 ft
- ERSCNNE;. E XPC$bO ES TYPE OESCRIPTICN 1
% v8ER N/A 8a I l > l 10 ! O I O !@l Z i@l
! ,s.sCNNA',ditsCtscuencNh Nevsfa 1
l 3/A 30 i
FIl101010!@l 7 8 9 .it ::
t0$$ CF CR CauAGE TO FactLITY l NE OE sCA PT'ON i
N/A 30 i li191l_Zi@l 4 9 13 e
7 is; ,g D E SC R< piton l: I I l l l l l_ l l I 1 !30.- l{
fil~il l.j hl N/A 68 69 7 8 '7 IQ
,N m E:
412-a3-a525 3
- S Lacey 810 2 2 8 0g o PRE ,*RtR
Attachment To LER 80-94/99X Beaver Valley Power Station l Duquesne Light Company '
Docket No. 50-334 During normal startup operations, a steam line low pressure bistable [BS-MS-485]
began to intermittently trip and reset. The Nuclear Shift Supervisor (NSS) notified the Station Operating Supervisor (SOS) of the problem. The plant was in startup Mode 2 so the SOS went to the control room to be of assistance. The SOS asked the Nuclear Shif t Foreman what channel was alarming and was informed that it was channel [P-MS-484]. The SOS then contacted the control room from the process racks to verify that the status light came on when the bistable was tripped. When communication was noted, the SOS placed channel [P-MS-484] in trip. Since [P-MS-485] was the channel that was tripping, the logic made up (2/3) for a low steam line pressure safety injection.
The personnel involved in this incident were reprimanded and re-instructed via this LER and verbally of the importance of re-checking the steps necessary to complete an important evolution.
a