05000311/LER-1981-056, Forwards LER 81-056/03L-0.Detailed Event Analysis Encl

From kanterella
(Redirected from ML20010B241)
Jump to navigation Jump to search
Forwards LER 81-056/03L-0.Detailed Event Analysis Encl
ML20010B241
Person / Time
Site: Salem 
Issue date: 08/06/1981
From: Uderitz R
Public Service Enterprise Group
To: Grier B
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010B242 List:
References
NUDOCS 8108140258
Download: ML20010B241 (3)
v • d • e


LER-1981-056, Forwards LER 81-056/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
3111981056R00 - NRC Website
v • d • e

text

.

a

~

O PSIEG Public Service Electric and Gas Company 80 Park Plazt Newark, N.J. 07101 Phone 201/430-7000 x

August 6, 1981 Mr. Boyce II. Grier Director of USNRC Office of Inspection and Enforcement Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. Grier:

LICENSE NO. DPR-75 DOCKET NO. 50-311 REPORTABLE OCCURRENCE 81-56/03L Pursuant to the requirements of Salem Generating Station Unit No. 2 Technical Specifications, Section 6.9.1.9.b, we are submitting Licensee Event Report for Reportable Occurrence 81-56/03L.

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

Sincerely yours,

$WhY R.

A.

Uderitz General Manager -

Nuclear Production CC:

Director, Office of Inspection b

1,7 3

k j'I l

'S and Enforcement (30 copies) b Director, Office of Management N

Information and Program Control f:

y 31981P g (3 copies)

Is q

v.s.vgs,umwass L,!

%,<W s

QD F

8108140258 810806 PDR ADOCK 05000311 S

PDR.

g/

The Energy People

% 2001 (400M) 181

Report Number:

81-56/03L Report Date:

August 6, 1981 Occurrence Date:

7-8-81 Facility:

Salem _ Generating Station, Unit 2 Public Service Electric & Gas Company Hancccks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Reactor _ Coolant Leak Detection System - Inoperable.

This report was initiated by Incident Report 81-236.

CONDITIONS PRIOR TO OCCURRENCE:

Mode 2 - Rx Power 0% - Unit Load 0 MWe DESCRIPTION OF OCCURRENCE:

At 1140 hours0.0132 days <br />0.317 hours <br />0.00188 weeks <br />4.3377e-4 months <br />, July 8, 1981, the auxiliary alarm annunciator was malfunctioning.

Since the Containment Sump Level Monitoring System was monitored by the auxiliary alarm annunciator, the Containment Sump Level Monitoring System was declared inoperable and action state-ment 3.4.7.1.b was entered.

This occurrence constituted operation in a degruded mode in accord-ance with technical' specification 6.9.1.9.b.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Equipment failure.

The auxiliary alarm annunciator was inoperable due to the failure of a series of RA848A alarm input cards.

ANALYSIS OF OCCURRENCE:

Technical specification 3.4.7.1 requires:

With only.two of the required leakage detection systems operable, oneration may continue for up to 30 days provided containment atmosphere grab samples are obtained j

and analyzed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; otherwise, be in 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 />.

CORRECTIVE ACTION

i i

The requirements of technical specification 3.4.7.1 were complied with.

l The annunciator was removeu from service.

At 2232 hours0.0258 days <br />0.62 hours <br />0.00369 weeks <br />8.49276e-4 months <br /> on July 9,.1981, Unit 2 entered mode 5 and action statement 3.4.7.1.b was '_arminated due l

to inapplicability in mode 5.

Subsequently, a series of.RA848A alarm

(

input cards were replaced.

The annunciator was returned to service and tested satisfactorily.

l L-

_, m LER 81-56/03L.

- Augunt 6, 1981 4 :-

f-7 i

(

4 FAILURE DATA:

l-

.i Rochester Instrument Systems, Inc.

RA848A Alarm Input Cards c

t-i M

Prepared By F.

Dickey

< /

Manager - Saleg Gendrating Station SORC Meeting Wo.

81-71 r

)

5 i

I d

Y 1

i a

e e

1 J

t 4

)

1 i

l a

T t

g

- 9,--,

,7y,p--y---gy, 3.,

.._m...,b,,#wv,--,,,,yy

,,s,,,,p 7,

3 %.

t"Ne'-m-+"h+'**t F F-r**'MT* M-15

'"r -e-w

FM ~- F"- w W C-r V T-vvm m-

-- VtW '

Retrieved from "https://kanterella.com/w/index.php?title=05000311/LER-1981-056,_Forwards_LER_81-056/03L-0.Detailed_Event_Analysis_Encl&oldid=4649393"