View source for 05000366/LER-1980-076, Updated LER 80-076/03X-1:on 800429,61 of 137 Control Rod Driveline Hydraulic Control Unit Pressure Switches Found to Have Setpoints Greater than Tech Spec Limit.Caused by Instrument Drift.Switches Recalibr & Returned to Svc

{{Adams
| number = ML20070D035
| issue date = 11/30/1982
| title = Updated LER 80-076/03X-1:on 800429,61 of 137 Control Rod Driveline Hydraulic Control Unit Pressure Switches Found to Have Setpoints Greater than Tech Spec Limit.Caused by Instrument Drift.Switches Recalibr & 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-80-076-03X, LER-80-76-3X, NUDOCS 8212140429
| package number = ML20070D011
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 1
}}
{{LER
| Title = Updated LER 80-076/03X-1:on 800429,61 of 137 Control Rod Driveline Hydraulic Control Unit Pressure Switches Found to Have Setpoints Greater than Tech Spec Limit.Caused by Instrument Drift.Switches Recalibr & Returned to Svc
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000366
| LER year = 2080
| LER number = 76
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
{{#Wiki_filter:NRC F**.            366                                                                                                          U. S. NUCLEAR REIULATORY COMMISSION
  .                                                                                 LICENSEE EVENT REPORT                               UPDATE REPORT - PREVIOUS l~*                        ,                                                                                                REPORT DATE 05/23/80 lh
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74 7          5                          60          61             DOCKET NUMBER                              EVENT DATE                     7S       REPORT DATE EVENT DESCRIPTION AND PROB ABLE CONSEQUENCES h O 2 lOn April 29, 198T, with the unit operating steady-state at 95 percent                                                                                                      l l O g 3 l l power, the performance of the "CRD HCU PRESSURE INDICATOR AND SWITCH                                                                                                   l O 4          l CALIBRATION" procedure disclosed 61 of 137 pressure switches to have                                                                                             l 0 s          lsetpoints greater than the Tech. Specs. allowed range of 955 +/-15 psig.l 0 s          l Plant operation was not af fected by this event.                                                                  The health and safety l 0 7          l of the public were not af fected by this event. This event is repetitive;
[ O iR i l as last' reported on LER 50-366/1980-035.                                                                                                                               l 7         8 9                     6                                                                                                                                            80
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7          8                            0         10          11             12             13                          18           19               20
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43 l44 B] 0l 6l 9l@47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O         j The cause of this event has been attributed to instrument drift. The                                                                                             ;
i i         i switches, Barksdale Model BlT A3255, were recalibrated and returned to i
        , .,         l service. An engineering study to find a means of preventing or reducingi
        , 3         l the frequency of recurrence has recommended a design change.- Recommendej i 4         Lcorrective measurcs are being considered.                                                                                                                         g
     ?         8 9                                                                                                                                                                 80 SIT        3            % POWE R                     OTHE R ST A TUS             DIS O RY                           LilSC i s         [Ej@ l0l9l5]@l
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    #         '                                                 M                                     4                                                                              0 AEnviTY CO0 TENT RELE A$ED OF RELE ASE                          AMOUNT OF ACTIVITY                                                    LOCATION OF RELEASE 7
i a 8 9 Lzl@ lyJ@l        to            It Na 44 I          I 45 N^
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PERSONNEL f XPOSURES NUMRER                 TYPE        DESCRIPTION i 7         10l 0 l 0l@Lz_J@l" NA                                                                                                                                             l
    '         " '          ,EnSO~~d',N>unS
* NovetR                 DESCmPriON@
i a                                                       NA 7         8    9 10101 Ol@l12        11                                                                                                                                         80 l
LOSS OF OR DAMAGE TO FACILITY TYPE           DE SCmPTION i 9         l_Zj@l                                        NA                                                                                                                 l u 9                  iO                                                                                                                                              80 7
8212140429 8211                                                                    NRC USE ONW DESCRIPTION @                               DR ADOCK 05000                    6                                                                        ,
2 o         ISSUE @l                                       NA                                           PDR                                  l      lllllllllllllj 7         8 9                  10                                                                                                              68 69                          80 5 NAME OF PHEPARER S.                    B. Tipps                                                PHOkE: I             I               N
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}}

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