ML20052G591

LER 82-018/03L-0:on 820414,closure Time of Nitrogen Inerting Stop Valve 3-1601-55 Exceeded Tech Spec Limit of 15-s.Caused by Failure of Asco Solenoid to Permit Normal bleed-off of Air Supply & Close Valve.Solenoid Replaced

ML20052G591
Person / Time
Site:	Dresden
Issue date:	05/03/1982
From:	Whalen R COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20052G577	List: ML20052G576 ML20052G591
References
LER-82-018-03L, LER-82-18-3L, NUDOCS 8205180490
Download: ML20052G591 (2)

Text

LICENSEE EVENT REPORT COfJTROL BLOCK: l

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> l 8t 9l*l Il Ll Dl R l S l 314 l@l UCENSEE COQE 15 0 l0 l= l 0 UCENSE l 0 l NuMW 0 l 0ERl 0 l -l 0l 025l@l26 4 l UCEr. 1 l1E l1 l1 l@l57 CAT TYPE JG l

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60 61 OOCKET NuM8ER o8 63 EVENT QATE 74 75 REPORT OATE 80 EVENT CESCRIPTION AND PROOAGLE CCNSECUENCES h 3 ;7 g l During refueling outage, while performing quarterly valve timing in accordance with pro- l

, y cedure DOS 1609-1, nitrogen inerting stop valve 3-1601-55 wa- und to have a closure  ;

,, time of approximately 20 seconds which exceeds the Tech. Spec. O e 3.7.1 limit of 15 g seconds. This was of minimal safety significance since primary containment isolation was y maintained by the 3-1601-21 valve, which had an acceptable closure time. No previous occutrences noted.

0181 i I 8 9 80 SYSTE M CAUSE CAUSE COMP. VALV E CODE CODE SUSCOCE COMPONENT CODE SU8 CODE SU8COOE

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10 11 12 13 Id l Elh IZ lh 19 20

,_ SEQUENTIAL OCCURRENCE REPORT REVISION LER/RO EV ENT YE A R R EPORT NO. CODE TYPE N O.

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_ 21 22 23 24 26 27 23 29 30 31 32 T N A Of ONP T M HOURS 22 S 8 i F 8. S P LIE MANUFACTURER l33^ l@l34z l@ l35Z l@ Izi@

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37 1 01 I 40 I I N lg 41 l Ylg l N lg l Al 4l 9l 9lg 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h 3 ;g; j The Asco Solenoid, Cat. No. 8317A35 was operating improperly and did not allow normal l

, ,,, bleed-off of the air supply which would close the 3-1601-55 valve. The solenoid was l replaced and the valve was retested with acceptable closure time. The valve timing g surveillance will continue to be performed quarterly. g u.4_j i I 8 9 80 STA  % POWER OTHER STATUS 015 RY OISCOVERY OESCRIPTION ISl U h l ni nin!h! u/s l lBl@l Routine Surveillance l A VITY CO TENT RELEASED OF RELEASE AMOUNTOF ACTIVITY LOCATION OF RELEASE g 8]9 @ lZ l@l N/A l l N/A l

. 10 t1 44 45 80 PERSONNEL EXPOSURES l NUMBER TYPE DESCRIPTION i l 7 l l 0l 0 l 0 l@l Zl@l N/A l l

nRSON~E L i~;uLS

• u DESCRIPTION N/A @

la l l gI gen I l@l l 8 9 11 12 60 LOSS OF OR OAMACE TO FACILITY TYPE DESCRIPTION 191 l zl@l10 N/A l 8 9 .

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N/A 82 0 519cmo ^

l l I I I I I I I ! ! I I l :I 9 10 68 69 80 3 Robert Whalen 815-942-2920, X-523 o NAME OF PREPARTRm . G W69 R h

i DEVIATION REPORT Cumm:nwssith Edis:n gy, 30, *

• . 3 82 ~ 26 STA t,*4 l i YEAR NO.

, _PART ll TITLE OF DEVI ATION Failure of NJtrogen Inerting OCCURRED

!' Stop Valve to Close Within Required Time cATr m SYSTEM AFFECTED PL ANT STATUS AT TIME OF - EVENT TESTING 1600 l-PrimaryContainment MODE Shutdown . par (M4T) 0 , LOsDtu.E) O h3 h DES (.RIPTION OF EVENT While performing. DOS 1600-1 (Quarterly Valve Timing) valve 1601-55 failed to close in less than or equal to 15 seconds as required by Tech. Spec. Table 3.7.1.

1 The reactor was in cold shutdown at the time.

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10 CFR50.72 NRC RED PHONE O 0 NOTIFICATION MADE YES NO EQUIPMENT F AILURE D19867 QYES O No work REouEST No. RESPONSteLE SUPERVISOR W. Pietryga oa7E 4/14/82 PART 2 l OPERATING ENGINEER'S COMMENTS The valve will be satisfactorily tested following repairs prior to unit startup from the spring 1982 refueling outage. .

O EVENT Or PustlC INTEREST l 0 24-HOUR NRC NOTIFICATION REO'D -

3 Tom Tongue (courtesy) 4/15/82 0930

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0 TECH. SPEC. VIOLATION TELEPH REGION lli DATE TIME NON REPORTABLE OCCURRENCE TRW/M@PY O '4 oAY REPORTABLE /T.S. REGION iii DATE TIME

! ] 30 DAY REPORTABLE /T.Sh a b.U

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CECO CORPORATE NOTIFICATION MADE

} ANNUAL /SPECL REPORT REC'D IF Ae0VE NOTIFICATION 15 PER 10CFR21 i

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$. DAY WRI TTEN REPORT REQ'O PER IOCFR21 L.E.R. # RN1 R /04-0 F. A. Palmer 4/19/82 1204 TELEPH CECO CCRPCRATE OFFICER DATE TIME l PRELIMINARY REPORT COMPLETED AND REVIEWED Michael WriRht 4/15/82 GPERATING ENGINEER m DAT{

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INVESTIGATED REPORT & RESOLUTION ACCEPTED BY STATION REVIEW wL

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.545 /s.t_. s: /-s # d RESOLUTION APPROVED ANO j,M- b AUTHORIZED FOR DISTRlDUTION ,-

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