ML19031B066

LER 1976-027-01 for Salem, Unit 1, Oil Leak in the South Penetration Area

ML19031B066
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 1976-027-01
Download: ML19031B066 (4)

Text

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~gulatory Docket File Frederick W. Schneider Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201 /622-7000 Vice President Production CV 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 76-27/3L 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 76-27/3L. 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 :1034 (3 copies)

Report Number:

Report Date:

9

• Occurrence Date:

Facility

• -27/3L

""'f; 6I 7 7 12/29/76 Salem Generating Station Public Service Electric & Gas Company Hancocks Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

Oil leak in the South Penetration area.

CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode 2, Reactor Power 3.5%, Plant Pressure 2235, Plant Temperature 548°F.

DESCRIPTION OF OCCURRENCE:

On 12/29/76, hydraulic oil leaked from No. 12 Main Steam Isolation Valve (12MS167) which rendered the isolation valve inoperable in the closed position. The Shift Supervisor implemented Technical Specifications Action Statement 3.7.1.5. The Fire Brigade was dispatched to the south penetration .area. The insu_lation around 12MS167 was rerµoved and the oil cleaned up. The plant was taken from Operational Mode 2 to Mode 3 to cool the main steam header down.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

The hydraulic oil line on 12MS167, which runs from the operating solenoid to the spool block on the high pressure side of the valve operator, fractured and caused the reservoir to drain in the area of the No. 12 Main Steam Stop Valve.

ANALYSIS OF OCCURRENCE:

With one main steam line isolation valve inoperable, .subsequent operation in Mode 1, 2, or 3 may proceed provided the isolation valve is maintained closed. At no time was there any hazard to the general public or sl.te personnel.

CORRECTIVE ACTION:

The hydraulic line on 12MS167 was replaced with one from Unit No. 2.

Investigation is being made to obtain piping with a greater wall thickness.

FAILURE DATA:

This is the first occurrence of this type.

Component: No. 12 Main Steam Stop Valve ( 12MS167)

Manufacturer: Atwood & Morrill/Hopkinson Model: 2379W B. Canfield Station SORC Meeting No. 4-77

CONTROL BLOCK LICENSEE EVENT REPORT

• 6

• LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE

@El4N1J.1s1G1s1~1 J 0101-101010101cr1-101qJ 141111111 5

lk ~

REPORT REPORT CATEGORY TVl'E SOURCE OOCKET NUMBER EVENT CATE REPORT CATE.

rorn coN'TlRJ.Q1 UJ LbJ 1o 1 51 o 1-1 o 1 21 11 ~ 11 12 12 19 11 16 1 1o 111 o 16 11 I 7J r--'""i 57 Sil S9 so 61 . 69 74 75 EVENT DESCRIPTION

@:ff]IDuring Mode 2 at 3.5% reactor power, hydraulic oil leaked from #12 Main I 7 8 9* 80

@J!J!Steam Isolation Valve (12MS167) which rendered the isolation valve inoperr 7 8 9 so

@El able in the closed position. The Shift Supervisor implemented Technical 7 8

@]§)jSpecification Action Statement 3.7.1.5. The Fire Brigade was dispatched I 7 8 9 . . 80

@))1to the south penetration area. The insulation around 12MS167 was removed1*

7 8 9 PRIME 80

~Ull.B.J SYSTEM.

r::;r:;i I~~~ I l°Eoi CAUSE COMPONENT*cooe:

IVIAILIVllilXJ COMPONENT SUPPLIER

~

COMPONENT MANUFACTURER IA 15 18 15 I VIOLATION 7 8 9 10 11 12 17 43 44 47 lNJ 48 CAUSE DESCRIPTION

!OlillThe hydraulic oil line on 12MS167 which runs from the operating solenoid I 9 80 U

IEJ!J.l to the spool _ block on. the high pressure side of the valve operator frac- 1*

7 8 9 ao

!Ilfil I tured and caused the reservoir to drain in the area of the #12 Main Steam!

7 8 SQ 9stop Valve.

FACILITY METMOO OF STATUS ')(,PQWER OTME-R STATUS CISCOVERY OISCOVERV DESCRIPTION ITII1a 1

L.ru.

s 10 10 13 I 10 12

'~~~N~/~A,__~__.I 13 44

[.gJ 45 46 N/A ao FORM OF ACTI VITV CONTENT RELEASEC OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE GE 7 8

~

9 l1J 10 I

11 N/A 44 I

45 N/A BO PERSONNEL EXPOSURES NUMBER TYPE CESCRIPTION 1010101 lZJ ~I----~N~/=A ___________________________________~J 7 9 11 12 13 ~

PERSONNEL INJURIES NUMBER DESCRIPTION ITE]IOIOIOll 7 8 9 11

~12,...---------N~/~A-------------------------------------,,.,!I 80.

OFFSITE CONSEQUENCes PJ!l~l 9 ____________~---N~/~A____________--'----------------------~J LOSS OR DAMAGE TO FACILITY GJ!) TVPf; 7

0£SCRIPT10N st;J~wo------------~N~/~A ____________________________________ J ADDITIONAL FACTORS Q]!JI EVENT DESCRIPTION (Continued on Page 2) I 7 8 9 ao III!1 1 a~a~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~80 NAME: _ _ _ _ _ _ _ B_.-_E.,...._c_a_n_f_i_e_l_d ____ PHONE: (609) 365-7000 Ext.Salem-525

Licensee Event Report .27/3L yqe2 EVENT DESCRIPTION (Continued) and the oil cleaned up. The plant was taken from operational Mode 2 to Mode 3 to cool the main steam header down. (76-27/3L).