ML20147H513

/03L-0 on 781208:during Steady State Oper,During Procedure HNP-2-3410,2E51-N017 Would Trip at -116 of Water for Low Setpoint & 111.9 of Water at High Setpoint,Due to Instru Drift

ML20147H513
Person / Time
Site:	Hatch
Issue date:	12/20/1978
From:	Nix R GEORGIA POWER CO.
To:
Shared Package
ML20147H501	List: ML20147H513 PM-78-551, Forwards LER 78-079/03L-0
References
LER-78-079-03L-01, LER-78-79-3L-1, NUDOCS 7812270317
Download: ML20147H513 (1)

Text

{{#Wiki_filter:- - - - - -

                .couTnot utocP : l                       l          l       1I                 l l@-                                (PLEAsE Paint On TYPE ALL REQUlf1EO INFORMATION)                                                                                                                               I['

I (xJl e o G lT l E l I I H l 2 l@l cl uc o,$te coat i. is r.l 0 l 0 l n l 0 l n l 0 l 0 l rl n l@l ticonSLnuuucs as 2., Liut,nc ivPE au l al l1 l 1 l 1 l 1 l@l siuarsis@ rT

                                                                                                                                                                                                                                                                                                                          !ll         l
   ]    s

[$ l L l@l 0 l 5 l 0 l 0 l 0 l 1 l 6 l f, !@[_1 l 2 l n l q l 7 19 l@ll l ? l 9 l n l vl 9 l@ cu ui ov.,Einuuucs .4 <a (vtNTcAit i4 is atecar cAiE 60

                                                                                                                                                                                                                                                                                                                          -{          l i

EVENT DESCHIPTioH AND pro 0AOLE CONSEQUENCES h l 'i] I Durinn a steady P. ate of enoration.'thiln nnefcmiro nrnc e .n HNP.?. m n (prir I I

                                                                                                                                                                                                                                                                                                                         }            J gl Steam Line Flow F.T. & C.), 2E51-N017 was found to trio a t -116 inches of water                                                                                                                                                                                                                  I                i ii Gl for the low setooint and 111.9 inches of water at the hiqh setooint. The limits                                                                                                                                                                                                                      !                 !'

gl for these setpoints are > -Ill inches of water and < 111 inches of water oer 1 , i E l Technical' Soecification Table 3. 3.2-2. There wore no ef fects to oublic health or I I I

   ] I safe plant operation as 2E51-N018 was coerable at the time.                                                                                                                                                                                                                                    I                          l l

I

E..l.

                                                                                                                                                                                                                                                                                               =

i l ! *es" *^'# CO oftCSe CO m N NTCOOs Su'#@s SME'OE lB l 8 IC lE l@ lX l@ ! Zl@ l 1l Ul Sl Tl Rl Ul@ 9 l 5 l@ lZ l@ 10 11 12 12 la is :u

                                    .                                                               SEQUENTI AL                                                OCCURRENCE              REPORT                                                       REVISION LtR Ro        tVCNT YE AR                                                   REPORT NO.                                                      CODE                  TYPE                                                        94 0 .
               @ ngg I7l81 a

1-1 10l 7l 9l l/l l013l lL l l-l [0] _:i u 22 . a 2, :s  :.2 u si u 3 KEf 'A TO O PL NT 1 HOURS 22 S6 I T FO t a. Li MA LF TL ER Iaa El@la4 Zi@ l Zi@ 1 21 @ l01010; I 0lN [g l N lg o as  % *i u lu N l@ l B ] 0 l 8 l 0o l@ 44

                                                                                                                                                                                                                                                                                                                       ,e -

CAUSE DESCRIPTION ANDConRECTIVE ACTtoNS h i g l The cause has been attributed to instrument drift. 2E51-N017 was recalibrated oer I i g i procedure HNP-2-5202 and procedure HNP-2-3410 was comoleted sati!factorily. The I f, 3l instrument is a Barton Model 289A switch. I i i 31 , I L gi I

       . .                                                                                                                                                                                                                                                                              =

STA US  % POWER OTHER STATUS DIS O F OtSCOvtnY DESCntPTION h g W@ l 0l ' 6l 6l@l NA l lBj@l Surveillance Testina l i

      ' AEriviiv COOrtNT ti                                                       AMOVNT OF ACTIVITY                                                                                              LOCATION OF RELEASE

{ tL{ Ast0 OF FitLI A$fl Z l @ l Zlgl NA l l NA l 4 9 10 Il 44 45 64 PER$0NNEL f xPO$UHE$ NUMBfR TYPE OtSCRIPTION gl0l 0lC'@lZl@[ 1A ] , P(RSONNtlINJU ttS NUuntM OCSCRIPflON l NA I

0. i. n I nI n l@l ii i:

n LOSS OF OR DAMAGE TO F ACluTY Q

• l, TYPE OtSCRIP TION v '

B4 17 9 l@l to NA I ei N Puoucity ft IS$Utn e J NRCUsECWLY

• 6I r J B L, _j@, q DESCRIPTION l

ns no NA a l lll1!!II!IIIli s> u2 . NAME OF PnEP AHEH m. R T. Nix (912) 367-7731  ?  ! PHONE: nd l hlelldilLU ,,Uper illlettd ellt o

                                                                                                                                                                                                                                                                                                                      }

78122703F1 - t

~-

_ . - - - - - _ - - - - - - - - - - - _ - - - - - - - - - . - - - - _ - _ -}}