ML19031B068

LER 1976-026-01 for Salem, Unit 1, Boron Injection Tank Inoperable

ML19031B068
Person / Time
Site:	Salem
Issue date:	01/14/1977
From:	Schneider F Public Service Electric & Gas Co
To:	O'Reilly J NRC/IE, NRC Region 1
References
LER 1976-026-01
Download: ML19031B068 (4)

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Frederick W. Schneide~ /J 80 Park Place Newark. N.J. 07101 201/622-7000 Vice President /~ //  !

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January 14, 1977 Mr. James P. O'Reilly Director of USNRC Off ice of Inspections and Enforcements Region I 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. O'Reilly:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 76-26/3L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1, we are submitting

• Licensee Event Report for Reportable Occurrence 76-26/3L.* This*

report is required within thirty (30) days of the occurrence.

Sincerely yours,

~a~

CC: Director, Office of Inspection and Enforcement (40 copies)

Director, Office of Management Information and Program Control (3 copies) 75~

• --Report Number: 76-26-L Report Date: 12/30,,., 6

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Ocpurrence Date: 12/25/76 Facility: Salem Generating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Boron Injection Tank Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Mode 1 Operation Reactor Power 17.5%

Plant Pressure 2235 Plant Tavg 552°F DESC.RIPTION OF OCCURRENCE:

On 12/25/76, the Boron Injection Tank was inoperable due to an inadvertent safety injection actuation which reduced the boron concentration below the minimum concentration allowed by Technical Specifications paragraph 3.5.4.1. The Shift Supervisor implemented EI-I.4.2 and plant conditions were returned to normal.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this occurrence was an inadvertent safety injection actuation details of which will be contained in the 90-day special report submitted pursuant to Technical Specification 6.9.2 (a).

ANALYSIS OF OCCURRENCE:

The Boron Injection Tank was returned to an ope=abl~ status within the time allowed by Technical Specification L.C.O. paragraph 3.5.4.1. At no time was there any hazard to the general public or site personnel.

CORRECTIVE ACTION:

The Boron Injection Tank was returned to operable status in accordance

• with EI - I . 4

• 2 .

FAILURE DATA:

This is the third occurrence of this type (76-19/3L; 76-21/3L)

Component failure data is not applicable for this occurrence.

Prepared by B. Canfield Manager - Sale&/Generating Station SORC Meeting No. 3-77

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e LICENSEE EVENT REPORT e CONTROi. SLOCX I 6

t..IC:ENSC !VE:NT 1..IC:ENSE NUMBER TVl>e TY~

@))1N1J-1s1G1s111*10101-101010101cr1-1010J _14111111111 10111 9 14 t!i .. i :fa ~

REPOFIT l'IE:POAT CATEGOAV TYllE: SOURCE OQC:KET NUMSE:R EVE:NT CA T'E i:IEPOAT OAT'lt roi11_coN"T1 PI 0 I r---! S7 :a I LI 59' l.bJ 60 I QI 5 I 0 I -I 0 I 2 I 71 61

• 2J 1112121517161 69* . 74

!112!3!017!6J 75 EVENT oeSCRIPTION

@:fil1During.Mode 1 operation, the Boron Injection Tank became I 7 8 9 80

@:£!!inoperable due to an* inadvertent safetv injection actuation 7 8 9 . . . J

@))!which reduced the boron concentration below the minimum 7 8 9 .

• @ill L.9oncentration allowed. by Technical Specifications paraqraph J

I 7 8 9 . 60

@))13.5.4.1.

7 8 9 The Shift Supervisor implemented (see attached)

Pl'llME aJ r

SVSTll:M CAUSE COMPONENT COMPONENT COCE cooe: COMPONENT COOE SUP<l\..JER MANUF AC1"URER VIOl..ATION

@El SJ Fl l1J I XI XI XI XI~ l_lli I Z I 9 I 9 19 I l!U 1 as 10 11 12 11 4J 44 47 4S CAUSe oeSCl'UPTION

~1 9

The cause of this occurrence was due to an inadvertent I SQ

@:Ifill safety 7 8 9 injection actuation, details of which will be con-I so

[@JI tained in the.90-Day special report submitted pursuant to I 7 89 Technical Specifications 6.9.2 (a). so FAC:ll..JT"' METHOO OF STATUS .. l>QWE:R OTMER STATUS c1sc:ove:Rv* OISC:OVERV oe:s~l'UPTION GJI] ~. I 0 I J. 17 I I NIA I ~ 1.,,,,____ _ _ _N_./_A_ _ __,......_--,,.,:!I 1 a 9 10 12 1J 44 45 46 80 l'OAM OF AC:TIVIT..,. CONTENT l'IE~ASEO OF REI.EASE; AMOUNT OF ;i.CTIVITY

[!ills 1..1.J ~ I N/A I I 7 9 10 11 44 so PERSONNEL EXPOSUFIES NUM8£;:! TVP'E OE:SC.RIPTION Gli}IOIOIOI 1.ZJ I1~3,_-.------~~------------------------------------------------~

N/A 7 S9 11 PERSONNEL INJURIES 12 J 1-1 I l'fUMS£R--c-£S"C-.RT"TION

[0 !0101 -=-~~~~~N_.._A~~~~~~~~~~~~~~~~~~~-.-l .... *..

7 8 9 11 12 00

. OFFSITE CONScQUENCfS

~~ N A ..

l.OSSOR OAMACc TO FACILITY TV~ Q£SCl'llPT1QN G:E)1z1 I N/A 7 s r-- 10 J 1

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aa oo NAME: ______________B~*-* _E_.___c_a_n_f~i_e_l_d____~-- P~ONE: (609) 365~7000 Ext.Salem-52

• t -3..

Reportable Occurrenc-6-2 6/3L

, Lie'ensee

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Page (2)

Event Report

• EVENT DESCRIPTION (Continued)

EI-I.4.2 and plant conditions were returned to normal.

The Boron Injection Tank is a passive component common to both ECCS sub systems and, therefore, no redundant component exists. This is the third occurrence of this type (76-26/3L).