ML19031B509

LER 1978 for Reportable Occurrence 78-45/03L on 100 Ft. Elevation Personnel Airlock Inoperable

ML19031B509
Person / Time
Site:	Salem
Issue date:	08/24/1978
From:	Librizzi F Public Service Electric & Gas Co
To:	Grier B NRC Region 1
References
LER 1978-045-03L
Download: ML19031B509 (3)

Text

0PSEG9 Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 Phone 201 /622-7000 August 24, 1978

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Mr. Boyce H. Grier *\. '"'

Director of USNRC Off ice of Inspections and Enforcements Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 78-45/03L Pursuant to the requirements of Salem Generating Station Unit No. 1 Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 78-45/03L. This report is required within thirty (30) days of the occurrence.

Sincerely yours,

~~

F. P. Librizzi General Manager -

Electric Production CC: Director, Offic~ 0£ Inspection and Enforcement (30 copies)

Director, Office of Management Information and Program Control

( 3 copies) 1/

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I r.eport Number: .45/03L Report Date: 8/2.4/7.8 Occurrence Date: 8/10/78 Facility: Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

100 Ft. Elevation Personnel Airlock Inoperable CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 1, Reactor Power 97%

DESCRIPTION OF OCCURRENCE:

At 1125 hours0.013 days <br />0.313 hours <br />0.00186 weeks <br />4.280625e-4 months <br />, while performing surveillance test 4.6.1.3, the 100 ft.

elevation airlock inner door .was observed to exceed the specified maximum airflow. Technical Specification 3.6.1.3 was implemented and maintenance personnel were notified. Maintenance action was completed and the door returned to operable status at 1235 hours0.0143 days <br />0.343 hours <br />0.00204 weeks <br />4.699175e-4 months <br />.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The cause of this occurrence was improper latch adjustment resulting from wear. This event is*not.felt to be personnel related.

ANALYSIS OF OCCURRENCE:

Tethnical Specification 3.6.l.3 states that "with an airlock inoperable, restore the airlopk to operable status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least hot standby within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />".

The 100 foot elevation airlock was restored to operable status within two hours, therefore, no further action was required.

CORRECTIVE ACTION:

The door seal latch was readjusted and the suiveillance t~st was rerun. Test results confirmed operability.

FAILURE DATA:

N/A Prepared by __--'T~.'-'L=.:...__s_p_e_n_c_e__

r _________

7 7 Manager - Salem Generating Station SORC Meeting No. 51-78

NRC FORM 366 * . NUCLEAR REGULATURY COMMISSION (7~771 ...

... ' . .. LICENSEE EVENT REPORT CONTRO.L BLOCK: I 1G) (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 1 6

[il2J IN IJ Is I G Is I 1 IG)I o I oI -1 o Io I oI o I o I - I o I o 1014 I 1 I 1I1 I 1101 I I© 7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER . 25 26 LICENSE TYPE JO 57* C.:.T 58 CON'T ITID 7 8

~~~~ I L l©I a I 5 I oI o I oI 2 I 7 I 2JC2)I o I s I 1 I o I 1 I s l©I° 18 I 2 14 I 7 18 IG) 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 AE?OAT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@)

ITilJ I During performance of surveillance 4.6.1.3, personnel airlock inner door exceeded maximum leak rate. Action Statement 3.6.1.3 was imple-

!))I] mented. All other airlock doors operable. Maintenance personnel investigated and repaired. Total inoperability was 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and 10 minut~s.

This is the sixth occurrence of this type.

80 SYSTEM CAUSE CAUSE COMP. VALVE CODE COOE SUBCOOE COMPONENT CODE SUBCODE SUBCODE

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SEQUENTIAL OCCURRENCE RE?ORT REVISION f.=:'\ LER *AO LVENT YE.l'.R REPORT NO. CODE TYPE NC.

\.!:.) REPORT NUMBER I I I 7 8 21 . 22 I I 23 I 0 I 4 I 51 24 26 I. . . . . ,

27 I0I 28 3

29 I L1J 30 I I 31 w

32 ACTION FUTURE EFFECT SHUTDOWN (.;:;\ ATTACHMENT NPA04 PRIME COMP. COMPONENT TAKEN ACTION ON Pl.ANT METHOD '"40URS *~ SUBMITTED FORM :;us. SUPPLIER MANUFACTURER U.l@W@ ~@ W Io Io I 01 01 .W@ 12!J@ ~@) I . I I I I@

33 34 35 36 37 'll 41 42 43 44 47 CAUSE DESCRIPTION AND CDRRECTlVE ACTIONS @

[JlIJ I The cause of this occurrence was improper latch*adjustment caused by DJJ:J wear~ This event is not felt to be personnel related. Door latch

[JJ]J was readjusted and surveillance testwassatisfactory.

o:m 7 8 9 80

'3Q'I METHOD OF FACILITY STATUS  % POWER OTl-IER STATUS ~ DISCOVERY DISCOVERY DESCRIPTION @

C2:Til W I 0 I 9 I 7 l@l....__

7 8 9 10 12 11

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44 l.£J@I 45 Surveillance Test 46 BO ACTIVITY CONTENT C\

RELEASED OF RELEASE AMOUNT OF ACTIVITY *. LOCATION OF RELEASE @

DJil W© 7 8 9

~@I 10 11 N/A 44 I

45 NLA 80 PERSONNEL EXPOSURES r.:;:;...

A IIEJ I oI o I o lW@ ____N...../_A_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _____.

NUMBER TYPE DESCRIPTION 7 B 9 11 12 13 80 PERSONNEL INJURIES t,;":;'\

NUMBER DESCRIPTION~

~I 7 B 9 ol ol ol@).__

11 12

____N=.t....:A=------------------------------------------------------------"so LOSS OF QA DAMAGE TO FACILITY 143\

TYPE DESCRIPTION '::.::J (Q2J 7

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NAMEOFPREPARER~____ T.........,......L__* __s~o_e_n__c~e_r______________ PHONE: (609)365-7000 Salen Ext.~

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