05000267/LER-1980-016-03, /03L-0:on 800322,during Testing,Four of Twelve Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Specs.Caused by Dirt Accumulation in Electrical Switches.Readjusted Switches: Difference between revisions

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{{Adams
#REDIRECT [[05000267/LER-1980-016-03, During Testing,Four of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced]]
| number = ML19305D709
| issue date = 04/09/1980
| title = /03L-0:on 800322,during Testing,Four of Twelve Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Specs.Caused by Dirt Accumulation in Electrical Switches.Readjusted Switches
| author name =
| author affiliation = PUBLIC SERVICE CO. OF COLORADO
| addressee name =
| addressee affiliation = NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
| docket = 05000267
| license number =
| contact person =
| document report number = LER-80-016-03L, LER-80-16-3L, NUDOCS 8004150438
| package number = ML19305D708
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = /03L-0:on 800322,during Testing,Four of Twelve Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Specs.Caused by Dirt Accumulation in Electrical Switches.Readjusted Switches
| Plant =
| Reporting criterion =
| Power level =
| Mode =
| Docket = 05000267
| LER year = 1980
| LER number = 16
| LER revision = 3
| Event date =
| Report date =
| ENS =
| abstract =
}}
 
=text=
{{#Wiki_filter:\\/N NRC FCCM 366 U.S. NUCLEAR RECULATCOY COMMISSION
-(7 77)
LICEIVSEE EVENT REPORT O
CONTROL BLOCK: l l
l l
l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6
ITTil I C l 0 I r I s l vi l l@l 0 l 0 l - l 0 l 01010 l 0 l-l 010 l@l 4 l 1 l 11210 l@l l
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7 8 9 LICENSEE CCOE 14 IS LICENSE NUM8ER 25 26 LICENSE TYPE Jo S7 CAT S8 CON'T E
S UR] l L }@l 0l 5 l 0 l 0 l 0 l 2 l 6 l 7 @l0 l3 l2 l2 l 8 l0Ml014 l0 l 9 l 8 l0 l@
7 8
60 61 COCKET NUM8ER 68 69 EVENT CATE 74 75 REPORT CATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121 l During testing. it was discovered that four of twelve helfum Mrculator saal mal fime-1 I O l a I i tion pressure differential switch units tripped outside the limits of LCO 4.4.1, l
IO l4 l l Table 4.4-3.
Reactor operation during test interval.
Reportable per Technical Speci-!
l0l5l t fication AC 7.5.2(b)1 and AC 7.5.2(b)2.
No effect on public health or safety.
Re-l 10lsl l dundant system available and operable. Similar reports are RO 77-47. Final. and" Pre-1 ITTTl l liminary reports RO 78-27, RO 79-32, RO 79-56, and R0 80-07.
I 10181 l I
80 7
8 9 COI:'E C0$E SNCO$E COMPONENT CODE Sus O'E Q
lM l Cl Blh W@ l E l@ l Il Nl Sl Tl Rl Ul@ W@ l zl@
7 8
9 to 11 12 13 18 19 20 SEQUENTIAL CCCURRENCE REPORT REVISION LE A RO EVENT YEAR REPORT No.
CODE TYPE N O.
@, Reg l218 l0 l
[-- J l 0~ ll.16 l d
10 l 3 l lLl l-l l0 l u
22 23 24 26 27 28 29 30 31 32 7K N AC 0 0 P NT MET HOURS S8 i FOR 8.
SU L MANUF CTURER lxl@lxl@
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33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i 10 I I ITT Barton Model 289 pressure differential switches failed to actuate at trip point I
g l due to dirt accumulation in electrical switches.
Affected switches re-adiusted to l
lii7; I proper trip points. Trip settings being checked on a mcinthly basis. Redesign of I
l3 l3l l system being evaluated.
l 11 141 l l
7 8 9 80 ST
% POWER OTHER STATUS Dis Y
DISCOVERY DESCRIPTION Ii l5 l l Glh l 0 l 0 l 0 l@l N/A l
l C l@l Operability Test i
ACTIVITY CO TENT RELEASED OP RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Ii Is I W @ l z l@l N/A l
lN/A l
i 7
8 9 10 ft 44 46 80 PERSONNEL EXPOSURES NUMBER TYPE
 
==DESCRIPTION==
i l1 l 7 l l 0l 0 l 0l@l zl@l N/A l
,ERSONNELiN2ub5 NuM8ER
 
==DESCRIPTION==
lt l9 I I 0l 0l 0l@l N/A l
7 8 9 11 12 80 LOSS OP CR DAMAGE TO FACILITY Q TYPE
 
==DESCRIPTION==
%/
li l 9I l zl@l N/A l l 7
8 9 10 80 l
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12 i O I I N U@DE CRIPTION ISSUE l N/A l
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68 69 80 7
8 9 10 6.
(3 3) 785-2253 l
800415
}}
 
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