ML19031B065

LER 1977-001-01 for Salem, Unit 1, Containment Pressure Protection, Channel II, PT-948C, Inoperable

ML19031B065
Person / Time
Site:	Salem
Issue date:	01/28/1977
From:	Schneider F Public Service Electric & Gas Co
To:	O'Reilly J NRC/IE, NRC Region 1
References
LER 1977-001-01
Download: ML19031B065 (4)

Text

Frederick W. Schneider Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/622- 7000 Vice President Production

~gulatory Docket File.

• - January 28, 1977 Mr. James P. O'Reilly Director of USNRC Off ice of Inspections and Enforcements Region 1 631 Park Avenue King of Prussia, Pennsylvania 19406

Dear Mr. O'Reilly:

LICENSE NO. DPR-70 DOCKET NO. 50-272 REPORTABLE OCCURRENCE 77-0l/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 77-0l/3L. This

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

Sincerely yours, CC: Director, Office of Inspection and Enforcement (30 copies)

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

Report Number: 77-Ql/3L Repo.rt Date: . . 3/77 Occurrence Date: 1/4/77 Facility Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Containment Pressure Protection, Channel II, PT-948C, Inoperable.

CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 3, Plant Pressure 2235 psig, Plant Temperature 547°F.

DESCRIPTION OF OCCURRENCE:

On 1/4/77, while performing the containment pressure protection channel functional check, Channel II, PT-948C, was found to be out of specifica-tions. The trip point was found to be above the Technical Specifications limit as specified in Table 3.3.4. The Shift Supervisor implemented Technical Specifications action statement 3.4.3.2(a).

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The dual comparator model 118 of the containment pressure protection Channel II (PT-948C) failed. The comparator was replaced and restored to normal. A calibration check was performed and the functional check completed.

ANALYSIS OF OCCURRENCE:

With the number of operable channels one less than the total number of channels, operation may proceed provided the operable channel is placed in the bypassed condition and the minimum channels operable requirement is demonstrated within one hour. At no time was there any hazard to the general public or site personnel.

CORRECTIVE ACTION: .*.

The dual comparator was replaced and a calibration check and functional check was performed. The containment pressure protection Channel II was returned to normal service.

FAILURE DATA:

This is the first failure of this type.

Manufacturer: Hagan Control Component: Dual Comparator Model 118 Serial Number: SNG 0218 B. Canfield

LICENSEE EVENT REPORT e

CONTROL BLOCK 6

LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE REPORT REPORT CATEGORY TYJ>E SOURCE OOCl<ET NUMBER EVENT CATE REPORT CATE ram coN'Tl!:..LQJ r'-1 57 sa u:J li!.I

is so 1o1 51 61 o 1-1 o1 2 111 2J IO 11 I O I 4 17 I 7 I 69 74 I 0 11 I 1 I 3 I 7 I 7J 75 EVENT OESCfHPTlON

@li]IDuring Mode 3. while performing the containment pressure protection chan-1 7 8 9 . 80

@:lI) nel functional check, Channel II, PT-948C, was found to be out of speci-

.7 8 9

@Ellfication. The .trip point was found to be above the Tech Spec limit as 7 8 9

[filillspecified in Table 3.3-4. The Shift Supervisor implemented Tech Spec J I 7 8 9 eo

(!I!J1action statement 3.4.3.2(a). The redundant containment pressure protectipn 7 8 9 SYSTEM CAUSE PRIME COMPONENT COMPONENT ao cooE cooE COMPONENT CODE SUPl>1..1ER MANUFACTUCIER VIOl..ATION

[ill)ISIAI lliJ IXIXIXIXI~ Llli IH 10 11 15 I Lill 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION

~ j The dual comparator model 118 of the containment pressure protection ch:y-

~ I nel II (PT-948C) failed.

9 The comparator was replaced and restored to I 7 89 ~

[Ifill normal. Manufacturer: Hagan Control. I 1 89 ao

[ill]

FACILITY STATUS lQj.

.,_POWER OTHER STATUS ~.~~~<e~i?.: 01scw7A.v DESCRIPTION 10 10 10 I .1~~~N~/~A,__~___,I L..£1 1 a 9 10 12 13 44 45 80 FORM OF ACTIVITV CONTENT RELEASED OF REL.EASE AMOUNT OF ACTIVITY LOCATION OF RELEASE

-- / 7 G:fil 8

~

9 11.J 10 I

11 N/A 44 I I N/A 4~5=---------------'------------'---------80~

I PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

(!E] I O I 0 I O11I tlli 7 8 9 12 I~13;---------=/-.;;.=-------------------------------------------------...,1&5 N/A j PERSONNEL INJURIES NUMBER DESCRIPTION

~1010101 1 s9 11

~I 12

--~~~--=N~/~A;;.._~~~~~~~~~~~~~~~~~I ao OFFSITE CONSEQUENCES

~19 . N/A LOSS OR DAMAGE TO FACILITY

.. 7Gfil8 lg~i i°ESCRIPTION N/A .

~,0.-------------------~L..;;..;;.._________________________________________________J~

PUBLICITY GliJ 7 89 ';:-----------------------~~.C...----------------------------------....-------------....1 80 AOOITION.AL FACTORS ITI!]IEVENT DESCRIPTION (Con'd) channels were in operation throughout this  !

1 89 ao

[ill] I event. This is the first occurrence of this type. (77-01/3L) I 1 aa eo NAME: _ _ _ _ _ _ _B;...*.;.._..;;E_._c_a_n...;.f...;.i;...e;...l;..;;....;d;...__ _

0 PHONE: (609) 365-7000 Ext.Salem-5

~

• DESCRIPTION This incident occurred on December 12th also.