View source for 05000416/LER-1983-181, Updated LER 83-181/03X-1:on 831110,channel C as-found Setpoints for Undervoltage Trip Were 116.2-volt Ac.Cause Unknown.Voltage Adjusted within Desired range.W/840221 Ltr

{{Adams
| number = ML20086R749
| issue date = 02/21/1984
| title = Updated LER 83-181/03X-1:on 831110,channel C as-found Setpoints for Undervoltage Trip Were 116.2-volt Ac.Cause Unknown.Voltage Adjusted within Desired range.W/840221 Ltr
| author name = Dale L, Parker J
| author affiliation = MISSISSIPPI POWER &amp; LIGHT CO.
| addressee name = Oreilly J
| addressee affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION II)
| docket = 05000416
| license number = 
| contact person = 
| document report number = LER-83-181-03X, LER-83-181-3X, NUDOCS 8403010121
| document type = LICENSEE EVENT REPORT (SEE ALSO AO RO), TEXT-SAFETY REPORT
| page count = 3
}}
{{LER
| Title = Updated LER 83-181/03X-1:on 831110,channel C as-found Setpoints for Undervoltage Trip Were 116.2-volt Ac.Cause Unknown.Voltage Adjusted within Desired range.W/840221 Ltr
| Plant = 
| Reporting criterion = 
| Power level = 
| Mode = 
| Docket = 05000416
| LER year = 2083
| LER number = 181
| LER revision = 
| Event date = 
| Report date = 
| ENS = 
| abstract = 
}}

=text=
{{#Wiki_filter:._, __                                          _ - -                           - . . - _ - .                   .    - - - - - - - -                 - - - -              - - - - - --                     -
h~"""*UpdateReport-PreviousReportDate 12/12/83                                                                                                                       u. s. NucLEAn s:EtutATonY cosmesss40N
       .                                                                                                  LICENSEE EVENT REPORT                                                Attachment to AECM-84/0084 Page 1 of 1 c0NTnot Stec80 l                            l       I        I~l             l                                    Isitaaet PneNT on TYPE ALL RElutnED INF0nMATioN) o i Ld     siLICtesSSE al alCOoEd i l@l o I ol 1 ofLaceans                                          o I of o ' of 57 CAT tol@
I j~ 7             8      9                                               to         it                                               soutel A           1 ol o !@IS4LsCENSE 25    ,            I il i Type I il Joi l@l-CON'T o i                "'*"'
i
                                       ,,,,                  e eii of si onac=          f of vouuna      1 41 1 I al@l             a e 111eve =111Avioi el sl@l                =        nof :ad        21 tl e I al@       so asonoAn
                    ' EveseT DEsCnFTION AfeO PROSASLE CONSEQUENCES h
       ., E Inn November 11. 1983. while nerformina calibration of RPS electrical                                                                                                                                                     I rin n lorotection asseinbly channel                                                                           "C".          the "as found" setpoints for under-J E l voltage trip were 116.2VAC. This is contrary to T.S.4.8.4.3 which                                                                                                                                                        1 E treceutres tne undervoltage setpcints to be 117VAC. This is reported                                                                                                                                                       j oe lpursuant tc T.S.6.9.1.13.a. Thia event had no offect on the health and                                                                                                                                                 g     ;
2 g l safety of the public and did not constitute a threat to plant safety.                                                                                                                                                    j l
E,..           I                                                                                                                                                                                                             I SIE"                       *^co "ne s $$s                                         compone=r coas                        sEoos suNEe Q       e
[ E[B l@ W@ QQ [ Il N l 5l T l Rj u j@
9             to                11                   12                      13                                     18        1 Xg               Zg
                                                  ~
a gg a np              EVENT YEAM                                                                O                                                      T                                   N O,i=                        ,l21e t 3i;    22 t=j 23 i lis i t1 24 26 trJ 27 L25 L3J29          LU 30 l=1                 Lb.
31                  32 As            AC                          PL NT                MET                                    HOURS 22            SUS I
[I W@
cAusE oEscninion Anoco'mEcrivE Actions @
p@ ,J@                        2
                                                                                                                   ,1 ,
I      I    I       I p@ F h" @S. SU@@                                             1     El #"I 1@
g (Immediate action was taken to ad.just the voltage to within the desired                                                                                                                                                    g g grange (117 + 2.9, -OVAC). Maintenance investigated the undervoltage                                                                                                                                                        i     ,
            ,           gd evice and found no discrepancies. The setpoint was rechecked on                                                                                                                                             ,
i
            ,           {ebruary13, 1984, and no sighificant drift wts found.                                                                                                                    Thie ia a final j
!       E .(Sep rt.                                                                                                                                                                                                                   l
                     's '                                                                 orHenstAvuS @                             m
     ' gg ts'WIs*            3 g i.spo.                                                                                         j "'eeggi                     ,-u- rou.o.iscoveny ossenoon @
i i san. g a                                                                      t                                                                                             i
                'ly,viTv        co'Iveert                         ''         "                                                "        *            *
* i (OCATION OF RELEASE
           '
* netpJL @o ormegeansLJOl"
                * * ,,,,,,,,, = ,,,,g;,,
Annoueror                                    ActivirY.@
                                                                                                                              =
I"
                                                                                                                                             =
1                                                                   l l        1                                                                                                                                                                                                                         =
1      'Fl 'l@LJ@l#~
                       ' pensaman'L =zJdas       '                       "
* l i a 1 ''I T"'l@lT"'  i ii         n                                                                                                                                                                         .0 I       ,
goy..
LoS5 of Oft DAMA.CE. 70. FACIL TV 58                                                                                                                                                                                         8*
                           ~ ""                                                            8403010121 840221                                                                                              N9C USE ONLY
                     ,3s                         m ,y.o=        @                          PDR ADOCK 05000416                                                                                                                            ,
2 o                                                                             g                                              PDR                                                 j   gjjg;g;;g;;glj 7       8 9                     to                                                                                                                                                   68 69                                 80 E Jerry Parker                                                                 a NAME OF PREPARI:R
{

. J E E MISSISSIPPI POWER & L        Helping Build Mississippi P. O. B O X 164 0, J AC K S O N. MIS SIS SIP Pl 3 9 2 0 5 34 FEB27 A 9 : 06bruary 21, 1984 NUCLEAR PetCDUCTION DEPARTMENT U. S. Nuclear Regulatory Commission EcElen II 101 Marietta St. , N.k'. , Suite 2900 Atlanta, Georgia 30303 Attention:      Mr. J. p. O'Reilly, Regional Administrator

==Dear Mr. O'Reilly:==

SL'PJFCT: Grand Gulf Nuclear Statlen t'ni t 1 Docket No. 50-416 License No. NPF-13 File 0260/L-835.0 Update Report - RPS Electrice]
Protection Asser.bly Channel "C" Undervoltage Trip Setpcints Out of Toleranc.e LER 83-181/03 X-1 AECM-84/0084, This letter submits an update to a previous report submitted on December 12, 1983. The evant for which the report was submitted occurred on November 11, 1983, while performing calibration of RPS electrical protection assembly channel "C", when the "as found" setpoints for undervoltage trip vere 116.2 VAC. This is contrary to Technical Specificaticn 4.8.4.3 which requires the undervoltiEe trip setpoints to be 117VAC. This war, reported pursuant to Technical Specification 6.9.1.13.a.
All corrective action assc iated v4th the event is complete. Attached is LER 83-181/03 X-1 which is e finol report.
Yours truly, p
L. F. Dale h
                                                  /
Manager of Nuclear Services EBS/SHH: sad Attachment ec:   (See Next Page) 0FI'ICIAL CON 7[23
                                                                                   \
Member Middle South Utilities System

               }E','
:-.-                                                                                  AECM-84/0084
                                                                                               # E*
MISSISSIPPI POWER O Ll!!HT COMPANY v;
cc: Mr. J. B. Richard -(w/a)
Mr. R..B. McGehee (w/o)
                                        ' Mr.'T. B. Conner (w/o).                                          '
Mr.'G. B.-iTaylor.'(w/o)
Mr. : Richard _C. _DeYoung Director (w/a)
Office of Inspection & Enforcement
    ~
U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Document' Control Desk (w/a)
U. S.' Nuclear Regulatory Commission
                                        ~ Washington, D. C. 20555 ft                                                       ,
s>          >
           .['
+
,4 s
Lr
* q
  } '
              .y
: e. w. . .
     . L; e
_A-   b IT s          g         .~
A   _.__
}}

{{LER-Nav}}