ML19325E522: Difference between revisions
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{{#Wiki_filter:~ .- . . - - - . . - - . . - . . . . . - . _ | {{#Wiki_filter:~ .- . . - - - . . - - . . - . . . . . - . _ | ||
' G CO L' Commonwealth Edison , | ' G CO L' Commonwealth Edison , | ||
l: Sill) County Nucitar Station i k '" | l: Sill) County Nucitar Station i k '" | ||
* Rural Route #1, Box 220 | * Rural Route #1, Box 220 | ||
:# Marseilles, Illinois 61341 PRIORITY ROUI'M Telephone 815/357 6761 Mr s t su =d i he ma s - | :# Marseilles, Illinois 61341 PRIORITY ROUI'M Telephone 815/357 6761 Mr s t su =d i he ma s - | ||
October 27, 1989 M y]g - | October 27, 1989 M y]g - | ||
e .g | e .g j 3 1 . | ||
j 3 1 . | |||
os gess 1 | os gess 1 | ||
e x . | e x . | ||
! bRM A ; | ! bRM A ; | ||
| Line 34: | Line 29: | ||
j Regiva-MI P hinistrator ; | j Regiva-MI P hinistrator ; | ||
l U.s. Nuclear Regulatory Commission j 199 Roosevelt Road ' | l U.s. Nuclear Regulatory Commission j 199 Roosevelt Road ' | ||
ls Glen Ellyn, Illinois 60131 | ls Glen Ellyn, Illinois 60131 | ||
| Line 42: | Line 36: | ||
t | t | ||
! This special report is submitted in accordance with.LaSalle Unit 1 operating i License, NpF-11, Appendix A. Technical specification 3.7.5.2 and 6.6.C. | ! This special report is submitted in accordance with.LaSalle Unit 1 operating i License, NpF-11, Appendix A. Technical specification 3.7.5.2 and 6.6.C. | ||
;[ on October' 1'4, 1989, at'1000 hours, the ionization detectors a well as the | ;[ on October' 1'4, 1989, at'1000 hours, the ionization detectors a well as the | ||
* f' proaction sprinkler system _for the Hot Lab area were taken out of service. j | * f' proaction sprinkler system _for the Hot Lab area were taken out of service. j k This action was taken following the unsatisfactory performance of Lasalle l | ||
k This action was taken following the unsatisfactory performance of Lasalle l | |||
Electrical Surveillance LES-Fp-06, " Channel Functional Test of Dry pipe | Electrical Surveillance LES-Fp-06, " Channel Functional Test of Dry pipe | ||
[ | [ | ||
| Line 53: | Line 43: | ||
b The detection and suppression systems for the Hot Lab area have been . | b The detection and suppression systems for the Hot Lab area have been . | ||
l inoperable for greater than fourteen (14) days and therefore have exceeded the ! | l inoperable for greater than fourteen (14) days and therefore have exceeded the ! | ||
+ | + | ||
14-day period allowed by Technical specifications 3.3.7.9 and 3.7.5.2 prior to : | 14-day period allowed by Technical specifications 3.3.7.9 and 3.7.5.2 prior to : | ||
.. . requiring a special report ~ | .. . requiring a special report ~ | ||
p - - | p - - | ||
!- To' assure that the level of fire protection does not decrease during the [ | !- To' assure that the level of fire protection does not decrease during the [ | ||
l- course of.this event, Lasalle has met the requirements of Action Statement "a" '' | l- course of.this event, Lasalle has met the requirements of Action Statement "a" '' | ||
k of Technical Specification 3.7.5.2 by establishing a continuous fire watch and i, , | k of Technical Specification 3.7.5.2 by establishing a continuous fire watch and i, , | ||
providing backup suppression equipment for the affected zone. Station 3 i troubleshooting measures and vendor recommendations have been unsuccessful in identifying:the root cause. Additional assistance from the vendor is being - | providing backup suppression equipment for the affected zone. Station 3 i troubleshooting measures and vendor recommendations have been unsuccessful in identifying:the root cause. Additional assistance from the vendor is being - | ||
l | l | ||
.obtained'to identify the root cause. The root cause of this inoperability and repair:is expected to be completed by December 1,- 1989. A supplement-to this 4 letter will be provided when the cause has been determined. | |||
.obtained'to identify the root cause. The root cause of this inoperability and repair:is expected to be completed by December 1,- 1989. A supplement-to this 4 | |||
letter will be provided when the cause has been determined | |||
l-l' M L | l-l' M L | ||
L, | L, | ||
| Line 76: | Line 58: | ||
l, LaSalle County Station 1 1 | l, LaSalle County Station 1 1 | ||
.GJD/GB/kg | .GJD/GB/kg | ||
. xc: Nuclear Licensing Administrator | . xc: Nuclear Licensing Administrator NRC Resident Inspector | ||
NRC Resident Inspector | |||
, NRC Document Control Desk IMPO - Records Center c | , NRC Document Control Desk IMPO - Records Center c | ||
S.h f 0911070341 891027 PDR ADOCK 05000373 S PDC , gj % 0 % | |||
S.h f | |||
0911070341 891027 | |||
PDR ADOCK 05000373 S PDC , gj % 0 % | |||
. . - - . - . - - - . . - _ - - - - . - . - , _ . . .~ .}} | . . - - . - . - - - . . - _ - - - - . - . - , _ . . .~ .}} | ||
Latest revision as of 18:57, 18 February 2020
| ML19325E522 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 10/27/1989 |
| From: | Diederich G COMMONWEALTH EDISON CO. |
| To: | Davis A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8911070341 | |
| Download: ML19325E522 (1) | |
Text
~ .- . . - - - . . - - . . - . . . . . - . _
' G CO L' Commonwealth Edison ,
l: Sill) County Nucitar Station i k '"
- Rural Route #1, Box 220
- Marseilles, Illinois 61341 PRIORITY ROUI'M Telephone 815/357 6761 Mr s t su =d i he ma s -
October 27, 1989 M y]g -
e .g j 3 1 .
os gess 1
e x .
! bRM A ;
Mr. E. Dctis- ggggy ;
j Regiva-MI P hinistrator ;
l U.s. Nuclear Regulatory Commission j 199 Roosevelt Road '
ls Glen Ellyn, Illinois 60131
Dear sir:
? . .
t
! This special report is submitted in accordance with.LaSalle Unit 1 operating i License, NpF-11, Appendix A. Technical specification 3.7.5.2 and 6.6.C.
- [ on October' 1'4, 1989, at'1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />, the ionization detectors a well as the
- f' proaction sprinkler system _for the Hot Lab area were taken out of service. j k This action was taken following the unsatisfactory performance of Lasalle l
Electrical Surveillance LES-Fp-06, " Channel Functional Test of Dry pipe
[
sprinkler. system Ionization Detectors." During the performance of this 7 j' surveillance, it was observed that the local detection panel would not reset i properly. ,
b The detection and suppression systems for the Hot Lab area have been .
l inoperable for greater than fourteen (14) days and therefore have exceeded the !
+
14-day period allowed by Technical specifications 3.3.7.9 and 3.7.5.2 prior to :
.. . requiring a special report ~
p - -
!- To' assure that the level of fire protection does not decrease during the [
l- course of.this event, Lasalle has met the requirements of Action Statement "a"
k of Technical Specification 3.7.5.2 by establishing a continuous fire watch and i, ,
providing backup suppression equipment for the affected zone. Station 3 i troubleshooting measures and vendor recommendations have been unsuccessful in identifying:the root cause. Additional assistance from the vendor is being -
l
.obtained'to identify the root cause. The root cause of this inoperability and repair:is expected to be completed by December 1,- 1989. A supplement-to this 4 letter will be provided when the cause has been determined.
l-l' M L
L,
'W4o p G. J. Diederich ll h/StationManager ,
l, LaSalle County Station 1 1
.GJD/GB/kg
. xc: Nuclear Licensing Administrator NRC Resident Inspector
, NRC Document Control Desk IMPO - Records Center c
S.h f 0911070341 891027 PDR ADOCK 05000373 S PDC , gj % 0 %
. . - - . - . - - - . . - _ - - - - . - . - , _ . . .~ .