View source for 05000366/LER-1981-084, Updated LER 81-084/03X-1:on 810903,N005 HPCI Steam Line Delta P Switch Found to Actuate at 204.5 Inches Water. Caused by Setpoint Drift.Barton Model 288A Switch Recalibr, Tested & Returned to Svc

{{Adams
| number = ML20070A724
| issue date = 11/30/1982
| title = Updated LER 81-084/03X-1:on 810903,N005 HPCI Steam Line Delta P Switch Found to Actuate at 204.5 Inches Water. Caused by Setpoint Drift.Barton Model 288A Switch Recalibr, Tested & Returned to Svc
| author name = Tipps S
| author affiliation = GEORGIA POWER CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION II)
| docket = 05000366
| license number = 
| contact person = 
| document report number = LER-81-084-03X, LER-81-84-3X, NUDOCS 8212090335
| package number = ML20070A700
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = Updated LER 81-084/03X-1:on 810903,N005 HPCI Steam Line Delta P Switch Found to Actuate at 204.5 Inches Water. Caused by Setpoint Drift.Barton Model 288A Switch Recalibr, Tested & Returned to Svc
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000366
| LER year = 2081
| LER number = 84
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
{{#Wiki_filter:NRC FORM 366                                                                                                                 U. S. NUCLE A"1 CEIUL ATORY COMMISSION
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LICENSEE EVENT REPORT                            UPDATE REPORT - PREVIOUS
       . -- " %                                                                                                                   REPORT DATE 10/1/81 CONTROL BLOCK: l 1
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(PLEASE PRINT CR TYPE ALL RE2Ul:E')INFORMATION) o i      *lG l A lE lI lH l 2 lg 0 l0 l- l0LICENSE                             l0 l0       l0 l0 l- l0 l0 lgl 4l 1l 1l 1l ljgl67 CAT NUM8ER                  25 l    lg 58 7       W 9          LICENSEE CODE              14     15                                                                 26      LICENSE TYPE Jo con'T 7
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En"C 60l L l@l          61 0 l 5 DOCKETl0 l 0NUMBER l0 l 3 l 6 68l6 @l     69 01910 EVENT DATE 13 l 8 74l1 l@l       75 llREPORT ll 3l DATE 0l 8l 280l@
EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h O 2 While increasino power from 238 MWt, durina the performance of the "HPCIl l 0 l 31 STEAM LINE DELTA P INSTRUMENT F.T.                                                    AND C." procedure, the N005 HPCI                                               l o 4        Bteam Line dp Switch was found to actuate at 204.5" H20.                                                                              Tech. Specs.              l O s Table 3.3.2-2,                              item 5.1. requires actuation at </= 300 percent of rated l 0'6        l flow (a do of </= 196" H2O) .                                       Redundant switch, N004, was in tolerance.                                                  l 10171 Wlant operation and the health and safety of the public were not affected 10181 by this repetitive event (as last reported on LER 50-366/1980-041).                                                                                                     l 7        8 g                                                                                                                                                               80 DE              CODE         SU8C E                  COMPONENT CODE                    SU8 CODE          S       E 7
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[Njg 43 lBl0l8l0lg 44            47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O       Rhe cause of this event has been attributed to setpoint drift.                                                                                    The            l i i       Iswitch, a Barton Model 288A, was recalibrated, successfully functionally l 1 2      l tested, and returned to service.                                              An engineering study to find a means                                             l g lof preventing or reducing the frequency of recurrence has recommended a l i 4       l Design Change.                       Recommended corrective measures are being evaluated.                                                                      l 7       8 9                                                                                                                                                                80 ST     S            % POWER                       OTHE R ST ATUS               ISCO RY                             DISCOVERY DESCRIPTION y (_Cj@ l 0 l 1 l 0 l@l                                          NA                    l     l B lgl Surveillance Testing                                                     l AETIVITY CO TENT LOCATION OF REMASE @
7 i e REM ASE@D OF AMOUNT 8 9
[z_1 10           11 NA REMASELz_1@l             OF ACTIVITY 44 l
45 NA          @l 80 l
PERSONNEL EMPOSURES NUMBE R             TYPE         DESCRIPTION i 7 l0l0l0l@lZl@l"   ''
NA                                                                                                                   l
             ' PtnSONNEt INJU' IES NUMBER              DESCRIP TION 7
i R 8 9 l0l0l0l@l        11      12 NA 80 l
LOSS OF OR DAMAGE TO F ACILITY TYPE       DE SCRIPTION 1 9      [z j@l                                     NA
                                                                      %%h35           K821130 05000366                                                                         l 7        a v             io g                               PDR                                                                  80 2 o       gggutf@l
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}}

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