ML18139A668: Difference between revisions

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=Text=
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{{#Wiki_filter:., ~or-.soL B 0 LOCK: ._I_..._ __ ~--'-I IQ !PLE.:-S::  
{{#Wiki_filter:0
=?.:I'., O?. TYPE ALL REDUIRED 1t;;:0RMAT10N; lo l~o I o I o J o I o 1-: 1 o 10:~ f I *1 I 1 I 1 101 I 18 LICENSE NUMBER :-=: ::?6 LICENSE TYFE 30 57 CAT 58
              .,   ~or-.soL B LOCK:           ._I_...___~--'- I IQ                                         !PLE.:-S::   =?.:I'., O?. TYPE ALL REDUIRED 1t;;:0RMAT10N; A
* A I S J P j S I JG)I 0 LICENSEE CODE 1( 15 co~..:*, [ 0 I , l 8 L!J©I o I s I o Io I o I 2 I s I o 101 o I : :,, Ii 's 60 61 DOCKET NUMBER 68 69 E','::"-T DJ..T:: EVENT DESCRIPTION AND F'ROBABLE CONSEQUENCES@
* I  S    J LICENSEE CODE P j S    I JG)I 1(        15 0    lo l~o I o I o o I o 1- : 1 o:-=:10:~
o l©I O I 7( 75 s111 91 sj oj(D SD REPOi':T DATE LWith Unit 1 at 100% power an investigation reveE.1-::i th.st the. amp readings for circuit Io I 3 J 122A (Boron Injection Tank Inlet) Panels 1 & 2 wsr-:: belC".J the acceptance' criteria ! o j 4] 'l stipulated in the PT. A power reduction and rep2.i=-of the defective circuits were !TI}] I initiated immediately.
J LICENSE NUMBER                                      ::?6 f       I *1 I 1 I 1 101 LICENSE TYFE       30 I 18 57 CAT 58 co~..:*,
This is a degraded mode ,oi operation as specified in T. s. 3. 3. I.~ l(A)4 and is reportable in accordance with T.S.6.o.2.b(2)
[ 0
After completion of repairs, :~ 1 normal power operation resumed. _E.l.[J I not affected.
~
Therefore the he2Ith ruid safety of the public were 8 9 'Bi] 6 SYSTEM CODE Is I Fl@ 9 10 CAUSE CAUSE CODE SUBCODE COMPDNE'.'T
I,l   8
:ODE ~@w@ I HI EI A f7 [ E I R , e 11 12 13 16 SEQUENTIAL OCCURRENCE Q LER/RO CVENT YEAR REPORT NO. CO:JE v  
:~:~~~        L!J©I o I s I o Io I oI 2 I s I o 101 o I : :,, Ii 's                                                       o7(l©I75O      I s111 91 sj oj(D      SD 60           61             DOCKET NUMBER                   68     69         E','::"-T DJ..T::                             REPOi':T DATE EVENT DESCRIPTION AND F'ROBABLE CONSEQUENCES@
! s I o I I I I o I 4 I s I I/ I I o I 3 I 21 22 23 24 26 27 Tc 29 COMP. VALVE SUBCODE SUBCODE LU w@ 19 20 REPORT TYPE w l.=J 30 31 ACTION FUTURE TAKEN ACTION EFFECT SHUTDOWN r:;:::,. ATT.i.::HMENT NPRD-4 FORM~UB. PRIME COMP. "SUPPLIER REVISION NO. w 32 COMPONENT MANUFACTURER 80 ON PLANT METHOD HOURS SUB1AITTED  
LWith Unit 1 at 100% power an investigation reveE.1-::i th.st the. amp readings for circuit Io I   3   J     122A (Boron Injection Tank Inlet) Panels 1 & 2 wsr-:: belC".J the acceptance' criteria
~@~@ ~@ ~ 1010' 01 01 L!J@ 33 34 3!> 36 37 40 ,C ~ ~@) IT 11 ! s Is I@ CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @ 42 -43 44 47 ! The heat tracing tape for this circuit was comple=ely replaced.
! o j 4] 'l stipulated                     in the PT.               A power reduction and rep2.i=- of the defective circuits were
No additional actions were deemed necessary.
!TI}] I initiated                       immediately.                 This is a degraded mode ,oi operation as specified in T. s. 3. 3.
r.IITI .L_ _______ _:_ _____________
I.~               l(A)4 and is reportable in accordance with T.S.6.o.2.b(2)                                                                 After completion of repairs,
_.:... ___________________
:~                 normal power operation resumed.                                     Therefore the he2Ith ruid safety of the public were 1
___.. ill] 8 9 FACILITY STATUS % POWER OTHER STATUS 1:TIJ ~@ I 1 I o I oj@,..._l
_E.l.[J I not             affected.
__ N....;;.;;;A
8 9                                                                                                                                                                                   80 SYSTEM             CAUSE               CAUSE                                                               COMP.          VALVE I R , e LU CODE               CODE            SUBCODE                 COMPDNE'.'T :ODE                           SUBCODE          SUBCODE
___ __, 8 9 10 12 13 ACTIVITY' CONTENT Q\ RELEASED OF RELEASE AMOUNT OF ACTIVITY~
'Bi]                                  Is I Fl@ ~@w@ I HI EI                                                       A f7 [ E                                           w@
i]I] w@) W@I NA 8 9 10 11 44 PERSONNEL EXPOSURES r:;;:;,. BO METHOD OF A DISCOVERY DISCOVERY DESCRIPTION
6                          9          10          11                 12           13                                       16           19              20 SEQUENTIAL                               OCCURRENCE               REPORT                      REVISION Q     LER/RO CVENT YEAR                                           REPORT NO.                                   CO:JE                   TYPE                        NO.
\:31 lu@LI ___ .::::E.=.l=-e=-c-=t-=a.r=-i=-c"'-an~-----------
v   NRJ~~~~          ! s I oI 21        22 I I 23 I o I4 I s I 24          26 I/ I 27 IoI3 I Tc         29 w
....... 45 4E 80 LOCATION OF RELEASE@ NA 80 NUMBER (':;:;\ TYPE DESCRIPTION I O IO I O 1'221~@1--
30 l.=J 31 w
_____ NA ___________________
32 ACTION TAKEN FUTURE ACTION EFFECT           SHUTDOWN                               r:;:::,. ATT.i.::HMENT             NPRD-4         PRIME COMP.             COMPONENT ON PLANT             METHOD                     HOURS ~                SUB1AITTED           FORM~UB.          "SUPPLIER            MANUFACTURER
_____.. 8 9 11 12 13 PERSONNEL INJURIES ,,;";\ NUMBER DESCRIPTION~ I O IO IO 1@1--_.;_-
                  ~@~@
_____ ..:.:;NA:..:...__
33        34
__________________
                                                  ~@
___. BO 8 9 ,, 12 BO LOSS OF OR DAMAGE TO FACILITY '4J' TYPE DESCRIPTION  
3!>
"-::J TIJ LU@ . NA 8 9 10 80 PUBllCITY C\ 8 00 ,,o NRC USE ONLY ISSUEDQ DESCRIPTION~
                                                                      ~ 1010' 01 01 36                37                      40 L!J@
8250 c, :m ~6....._ __________
                                                                                                                        ,C
N_A ___________ , , 11 11 11 , , 11 , : f. 9 10 68 69 6:J ;; J.L. Wilson NAME OF PRE PARER-------------------
                                                                                                                                              ~
-(804} 357-3184 PHONE:--------------
42      -
0 ll. " 
                                                                                                                                                                  ~@)
~-., ~TACH'.*lENT 1 SL~l3Y POWER STATION, UNIT e DOC~ET NO. 50-280 REPORT NO. 80-048/03L-C EVE:~T DATE: 7-21-80 TITLE OF REPORT: HEAT TRACING FAILLRE 1. Description of Event: With Unit I at 100% pow....,cor, a investigation revec.led that the amp readings for circuit 22A (Boron Inje::::tior:.
43 IT 11 ! s Is I@
Tank Inlet) Panels 1 & 2 were below the Acceptance Criteria Stipulated in ~he ?T. A power reduction and repair of the defective circuits was specifice~
44            47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS                               @
i~ T.S.3.3.A.4 and is reportable in accordance with T.S.6.6.2.b(2)
                  ! The heat tracing tape for this circuit was comple=ely replaced.                                                                         No additional actions were deemed necessary.
: 2. Prob ab le Consequences  
r.IITI         .L__ _ _ _ _ _ __:__ _ _ _ _ _ _ _ _ _ _ _ __.:..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____..
& Status of Redundant Sys te::is: A power reduction was initiated due to the failure of both redundant circuits All repairs and actions were within the Technical Specifications.The.heat tracing is intended to maintain.
ill]
a te:ipe*rature abo:ve. th2.t :i.eeded _ for flow -and flow *was maintained; therefore,tbe health and safety of the public were not affected.
8     9                                                                                                                                                                               BO FACILITY                                                                             METHOD OF                                                                      A STATUS               % POWER                           OTHER STATUS                 DISCOVERY                                        DISCOVERY DESCRIPTION        \:31 1:TIJ ~@ I 1 I o I 8      9              10 oj@,..._l__N.. .; .; ;A_ _ ___,
: 3. Cause: Since this tape 'b:?-d recently been replaced, the T!=-ason for failure: was an .. excess-*amount*
12       13 lu@LI___.::::E.=.l=-e=-c-=t-=a.r=-i=-c"'-an~-----------.......80 44      45             4E ACTIVITY'        CONTENT                                                    Q\
of tape a?plietl for the size of pipe heat requirements.
RELEASED OF RELEASE                            AMOUNT OF ACTIVITY~                                                                      LOCATION OF RELEASE@
: 4. Irrrrnediate Corrective Action: The irrrrnediate corrective action was to commence a power reduction and to replace the defective heat tracing tape. This infonnation will be provided to the task force §tud~.lLil.g trre heat.tracing systeI:c for further evaluatibn.
i]I] w@) W@I                                                          NA                                                             NA 8      9              10            11                                                                                                                                                80 PERSONNEL EXPOSURES                                r:;;:;,.
NUMBER       (':;:;\ TYPE       DESCRIPTION I O IO I O 1'221~@1--_____NA_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ______..
8       9               11       12         13                                                                                                                                       BO PERSONNEL INJURIES                   ,,;";\
NUMBER               DESCRIPTION~
~            I O IO       IO   1@1--_.;_-_____..:.:;NA:..:...___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____.
8     9                 ,,       12                                                                                                                                                   BO LOSS OF OR DAMAGE TO FACILITY                 '4J' TYPE       DESCRIPTION                     "-::J TIJ LU@                                               .
                                                                                    ,,o NA 8       9           10                                                                                                                                                                     80 PUBllCITY               C\             8 00                                                                                                             NRC USE ONLY 8250
:m    f.
ISSUEDQ DESCRIPTION~
              ~6.....___________N_A_ _ _ _ _ _ _ _ _ _ _~
9          10                                                                                                                                    68
                                                                                                                                                                      , ,
69 11 11 11 , , 11 , :
c, 6:J ;;
J.L. Wilson                                                                 -        (804}        357-3184                    0 ll.
NAME OF PRE P A R E R - - - - - - - - - - - - - - - - - - -                                                       PHONE:--------------
 
~-., ~TACH'.*lENT 1 SL~l3Y POWER STATION, UNIT DOC~ET NO.         50-280 e
REPORT NO.         80-048/03L-C EVE:~T DATE:       7-21-80 TITLE OF REPORT:                       HEAT TRACING FAILLRE
: 1. Description of Event:
With Unit I at 100% pow....,cor, a investigation revec.led that the amp readings for circuit 22A (Boron Inje::::tior:. Tank Inlet) Panels 1 & 2 were below the Acceptance Criteria Stipulated in ~he ?T. A power reduction and repair of the defective circuits was specifice~ i~ T.S.3.3.A.4 and is reportable in accordance with T.S.6.6.2.b(2)
: 2. Prob ab le Consequences & Status of Redundant Sys te::is:
A power reduction was initiated due to the failure of both redundant circuits All repairs and actions were within the Technical Specifications.The.heat tracing is intended to maintain. a te:ipe*rature abo:ve. th2.t :i.eeded _for flow -and flow *was maintained; therefore,tbe health and safety of the public were not affected.
: 3. Cause:
Since this tape 'b:?-d recently been replaced, the T!=-ason for failure: was an ..
excess-*amount* of tape a?plietl for the size of pipe heat requirements.
: 4. Irrrrnediate Corrective Action:
The irrrrnediate corrective action was to commence a power reduction and to replace the defective heat tracing tape. This infonnation will be provided to the task force §tud~.lLil.g trre heat.tracing systeI:c for further evaluatibn.
After replacing the heac tra::ing tape, operability of the affected Heat Tracing Circuit was verified and the unit returned to normal power operation.
After replacing the heac tra::ing tape, operability of the affected Heat Tracing Circuit was verified and the unit returned to normal power operation.
: 5. Subsequent Corrective Action: Since the subject circuit is continously monitored, no subsequent action is requir_ed.
: 5. Subsequent Corrective Action:
Since the subject circuit is continously monitored, no subsequent action is requir_ed.
: 6. Action Taken to Prevent Recurrence:
: 6. Action Taken to Prevent Recurrence:
No additional actions were deemed necessary.
No additional actions were deemed necessary.
: 7. Generic Implications:
: 7. Generic Implications:
A task force has been estc.:1Eshed to study the total spectrum of the heat tracing system in an atceqt to discern present p:-oblems and recommend solutions which will eli~i~ate sporadic failures experienced.}}
A task force has been estc.:1Eshed to study the total spectrum of the heat tracing system in an atceqt to discern present p:-oblems and recommend solutions which will eli~i~ate sporadic failures experienced.}}

Revision as of 03:26, 21 October 2019

LER 80-048/03L-0:on 800721,w/unit at 100% Power, Investigation Revealed That Amp Readings for Circuit 22A Boron Injection Tank Inlet Panels 1 & 2 Were Below Tech Specs.Caused by Excess Amount of Heat Tracing Tape
ML18139A668
Person / Time
Site: Surry Dominion icon.png
Issue date: 08/19/1980
From: Joshua Wilson
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML18139A667 List:
References
LER-80-048-03L-01, LER-80-48-3L-1, NUDOCS 8008250660
Download: ML18139A668 (2)
v • d • e


Text

0

., ~or-.soL B LOCK: ._I_...___~--'- I IQ  !PLE.:-S:: =?.:I'., O?. TYPE ALL REDUIRED 1t;;:0RMAT10N; A

  • I S J LICENSEE CODE P j S I JG)I 1( 15 0 lo l~o I o I o o I o 1- : 1 o:-=:10:~

J LICENSE NUMBER  ::?6 f I *1 I 1 I 1 101 LICENSE TYFE 30 I 18 57 CAT 58 co~..:*,

[ 0

~

I,l 8

~:~~~ L!J©I o I s I o Io I oI 2 I s I o 101 o I : :,, Ii 's o7(l©I75O I s111 91 sj oj(D SD 60 61 DOCKET NUMBER 68 69 E','::"-T DJ..T:: REPOi':T DATE EVENT DESCRIPTION AND F'ROBABLE CONSEQUENCES@

LWith Unit 1 at 100% power an investigation reveE.1-::i th.st the. amp readings for circuit Io I 3 J 122A (Boron Injection Tank Inlet) Panels 1 & 2 wsr-:: belC".J the acceptance' criteria

! o j 4] 'l stipulated in the PT. A power reduction and rep2.i=- of the defective circuits were

!TI}] I initiated immediately. This is a degraded mode ,oi operation as specified in T. s. 3. 3.

I.~ l(A)4 and is reportable in accordance with T.S.6.o.2.b(2) After completion of repairs,

~ normal power operation resumed. Therefore the he2Ith ruid safety of the public were 1

_E.l.[J I not affected.

8 9 80 SYSTEM CAUSE CAUSE COMP. VALVE I R , e LU CODE CODE SUBCODE COMPDNE'.'T :ODE SUBCODE SUBCODE

'Bi] Is I Fl@ ~@w@ I HI EI A f7 [ E w@

6 9 10 11 12 13 16 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION Q LER/RO CVENT YEAR REPORT NO. CO:JE TYPE NO.

v NRJ~~~~  ! s I oI 21 22 I I 23 I o I4 I s I 24 26 I/ I 27 IoI3 I Tc 29 w

30 l.=J 31 w

32 ACTION TAKEN FUTURE ACTION EFFECT SHUTDOWN r:;:::,. ATT.i.::HMENT NPRD-4 PRIME COMP. COMPONENT ON PLANT METHOD HOURS ~ SUB1AITTED FORM~UB. "SUPPLIER MANUFACTURER

~@~@

33 34

~@

3!>

~ 1010' 01 01 36 37 40 L!J@

,C

~

42 -

~@)

43 IT 11 ! s Is I@

44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

! The heat tracing tape for this circuit was comple=ely replaced. No additional actions were deemed necessary.

r.IITI .L__ _ _ _ _ _ __:__ _ _ _ _ _ _ _ _ _ _ _ __.:..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____..

ill]

8 9 BO FACILITY METHOD OF A STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION \:31 1:TIJ ~@ I 1 I o I 8 9 10 oj@,..._l__N.. .; .; ;A_ _ ___,

12 13 lu@LI___.::::E.=.l=-e=-c-=t-=a.r=-i=-c"'-an~-----------.......80 44 45 4E ACTIVITY' CONTENT Q\

RELEASED OF RELEASE AMOUNT OF ACTIVITY~ LOCATION OF RELEASE@

i]I] w@) W@I NA NA 8 9 10 11 80 PERSONNEL EXPOSURES r:;;:;,.

NUMBER (':;:;\ TYPE DESCRIPTION I O IO I O 1'221~@1--_____NA_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ______..

8 9 11 12 13 BO PERSONNEL INJURIES ,,;";\

NUMBER DESCRIPTION~

~ I O IO IO 1@1--_.;_-_____..:.:;NA:..:...___ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ____.

8 9 ,, 12 BO LOSS OF OR DAMAGE TO FACILITY '4J' TYPE DESCRIPTION "-::J TIJ LU@ .

,,o NA 8 9 10 80 PUBllCITY C\ 8 00 NRC USE ONLY 8250

m f.

ISSUEDQ DESCRIPTION~

~6.....___________N_A_ _ _ _ _ _ _ _ _ _ _~

9 10 68

, ,

69 11 11 11 , , 11 , :

c, 6:J ;;

J.L. Wilson - (804} 357-3184 0 ll.

NAME OF PRE P A R E R - - - - - - - - - - - - - - - - - - - PHONE:--------------

~-., ~TACH'.*lENT 1 SL~l3Y POWER STATION, UNIT DOC~ET NO. 50-280 e

REPORT NO. 80-048/03L-C EVE:~T DATE: 7-21-80 TITLE OF REPORT: HEAT TRACING FAILLRE

1. Description of Event:

With Unit I at 100% pow....,cor, a investigation revec.led that the amp readings for circuit 22A (Boron Inje::::tior:. Tank Inlet) Panels 1 & 2 were below the Acceptance Criteria Stipulated in ~he ?T. A power reduction and repair of the defective circuits was specifice~ i~ T.S.3.3.A.4 and is reportable in accordance with T.S.6.6.2.b(2)

2. Prob ab le Consequences & Status of Redundant Sys te::is:

A power reduction was initiated due to the failure of both redundant circuits All repairs and actions were within the Technical Specifications.The.heat tracing is intended to maintain. a te:ipe*rature abo:ve. th2.t :i.eeded _for flow -and flow *was maintained; therefore,tbe health and safety of the public were not affected.

3. Cause:

Since this tape 'b:?-d recently been replaced, the T!=-ason for failure: was an ..

excess-*amount* of tape a?plietl for the size of pipe heat requirements.

4. Irrrrnediate Corrective Action:

The irrrrnediate corrective action was to commence a power reduction and to replace the defective heat tracing tape. This infonnation will be provided to the task force §tud~.lLil.g trre heat.tracing systeI:c for further evaluatibn.

After replacing the heac tra::ing tape, operability of the affected Heat Tracing Circuit was verified and the unit returned to normal power operation.

5. Subsequent Corrective Action:

Since the subject circuit is continously monitored, no subsequent action is requir_ed.

6. Action Taken to Prevent Recurrence:

No additional actions were deemed necessary.

7. Generic Implications:

A task force has been estc.:1Eshed to study the total spectrum of the heat tracing system in an atceqt to discern present p:-oblems and recommend solutions which will eli~i~ate sporadic failures experienced.

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