ML19340B279

RO 80-069:inadvertent Initiation of Safety Injection Signal Occurred But Did Not Result in Water Injection Into Rcs. Caused by Sys Lineups Utilized for Overpressure Protection

ML19340B279
Person / Time
Site:	Sequoyah
Issue date:	10/06/1980
From:	Calhoun J TENNESSEE VALLEY AUTHORITY
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8010210727
Download: ML19340B279 (2)

Text

..

. . .

TENNESSEE VALLEY AUTHORITY CH AT? %NCOGA. TENNESSEE 37401

, 1750 htnut Street Tower II

, October 6, 1980 Mr. James P. O'Reilly, Director U.S. Nuclear Pegulatury cewmissicm Office of Inspection and Enforcement Region II

'

101 Ma-ietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Hailly:

TE2R3'MR VALLEY AUIHORITY - SECUDYAH NUCLEAR PIMf UNIT 1 - DOCKET No. 50-327 - FACILITY OPERATING LICENSE DPR REPORTABLE Od.umICE

,

REPORr SGO-50-327/8069

The subject reportable occt.utar.6 was telecopied to the NBC on June 3,1980,

,

but no followup was sqliM. Evaluaticn by the Plant Operaticm3 Peview Ccrmittee determined that this occurrence was reportable under 10 CE'R 50.72

,

but was not resu.i.able under the Seqtryfah technical specificaticns.

'Ihis occurrence involved inadvertent initiaticn of safety injecticn signal, but did not result in the injecticn of water into the reacta.: coolant system due to the system lineups utiliwd for over pressure protection i

of the reactor coolant system in node 5. -

Very truly yours,

'IDECSSEC VALLEY AUHERITY J. R. Calhoun Director of Nuclear Power

)

1 l

cc: Director Office of Management Informaticn and Program Ccntrol U.S. Nir ime Regulatory remmissicm Washingtcn, DC 20555 Director Office of Inspecticn and Enforcement l U.S. Nuclear Regulatory Ccmnissicn Washington, DC 20555 Mr. Bill Lava 11m Nuclear Safety Analysis Center Palo Alto, ralifornia 94303  %

V Mr. W. T. Cottle, NBC InWLul, Sequoyah I i

8'O102303 7- uc:m,o. ,,.mmys e e

- .- -_

.

_ _ - _ _ _ _ _ - - _ _ _ - _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _

U. S. NUCLEAR REGULATO]Y COMMISSION

. ""fdN

• LICENSEE EVENT REPORT ~

CONTROL BLOCK: l 1

l l l l l lh 6

(PLEASE PRINT OR TYPE ALL REOUIRED INFORMATION) )

lo lil8 I9 Il 7-I  ! I l@l15 14 I I I I I I LICENSE NUMBER I I I I 2b l@l26 I I I LICENSE TYPE 30 I l@l57 CAT I 58 l@

LICENSEE CODE COWT O 101il 7 8 agil 60

@l ci rlolo 101212 f7 GigiolefoioiJi@lFioI1101 0 llol@

61 68 69 EVENT DATE 74 75 REPORT DATE 80 DOCKET NUMBER EVENT DESCRIPTION AND PRO 83ABLE CONSEQUENCES h l0l2l l 362 LW l t o 13 I I I 1 o 141 I I lo 151 i l 10161I l 1017]I .

I i c 181 I l 7 8 9 80 DE CO E SUSC E COYPONENT CODE SL8C DE S E 10191 I I l@ LJ@ l l@ l i l i I i 18 I l@ l 18 SEQUENTI AL OCCURRENCE REPORT REVfSION LER RO EVE NT YE A R R EPORT N A CCDE TYPE N O.

@ agg iflOI l-i 23 I014191 24 26 1-1 27 I

28 I

29 I I JO I l-l l 32 I

,,,,, 21 22 31 K N AC ON ON PL NT ET HOURS S8 I FOR 8. SUPPLIE MANUFACTURER I

33 l@l34 l@ l 35 l@ l 36 l@ l 3/

I I I 40 I I 41 l@ l 42 l@ l 43 l@ l 44 I I I 47

!@-

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 11 101i I it 11 11 I l i 121 l I t i l 31 l l l

11 141 I l i

?- 8 9 80 i SA S  % POWER OTHER STATUS SO RY DISCOVERY DESCRIPTION li is i l l@ l l l l@l I i  !@l I l

- 0 ACTIVITY . CO TENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RELEASE l1 l6l hl l l l l l PERSONNEL EXPOSURES NUYBER TYPE lil7ll l l l l lhlDESCRIPT'ON l PERSONNE L INJU IES NUV8ER DCSCRIP TION li la i l i I l@l12 i 1 3 9 11 ,

80 LOSS OF OR DAMAGE TO FACILtTV TYPE DESCntPTION l i l 91 l l@lto l 7 ej 9 go 6SSu 4 12 l 9n9 i . L]rliC@ DESCRIPTION i 1111111llllill i 68 69 80 5 NAME OF PREPARER PHONE:

+. - -