ML19031B063

LER 1977-008-01 for Salem Unit 1 No. 13 Steam Generator Steam Flow Channel I Inoperable

ML19031B063
Person / Time
Site:	Salem
Issue date:	02/15/1977
From:	Schneider F Public Service Electric & Gas Co
To:	O'Reilly J NRC/IE
References
LER 1977-008-01
Download: ML19031B063 (4)

Text

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'.Regulatory Docket. .filt

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Frederick W. Schneider Public Service Electric and Gas Company 80 Park Place Newark, N.J. 07101 201/622-7000 Vice President Production February 15, 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 77-08/3L 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 77-08/3L. This report is required within thirty (30) days of the occurrence.

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

Director, Office of Management Information and Program Control

( 3 copies)

Report Number: 77&/3L e Report Date: 2/5/77 ~iegufatory Docket Fill}

Occurrence Date: 1/21/77 Facility: Salem Geperating Station Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCURRENCE:

No. 13 Steam Generator Stearn Flow Channel I Inoperable.

CONDITIONS PRIOR TO OCCURRENCE:

Operational Mode I Reactor Pwr: 22%

Generator: 160 MWe DESCRIPTION OF OCCURRENCE:

On 1-21-77 #13 S/G Stearn Flow Channel I was declared inoperable due to inconsistent readings. Technical Specification Action Statement No. 14 for LCO 3.3.2.1 was implemented and No. 13 S/G Stearn Flow Channel I was placed in the tripped.condition.

DESIGNATION OF APPARENT CAUSE OF OCCURRENCE:

Failure of Differential Pressure Transmitter Diaphragm and Mechanical Linkage to the output Servo System caused minimum output for varying D/P inputs.

ANALYSIS OF OCCURRENCE:

Technical Specification Action *statement No. 14 for LCO 3.3.2.1 states that with the number of operable channels one less than the total number of channels, operations may continue until the performance of the next required channel function test, providing the inoperable channel is placed in the tripped condition within one hour. No. 13 S/G Stearn Flow Channel was placed in the tripped position within the one hour allowance, therefore the Technical Specifications were not violated. At no time was there any danger to the health and safety of the general public or site personnel.

Report 77-08/3L CORRECTIVE ACTION:

• 2/5/77 The inoperable Differential Pressure Transmitter was replaced with an in-house spare. Operational tests were made and proper perfor-mance verified.

• FAILURE DATA:

Transmitter Differential Pressure Manufacturer: Fisher-Porter Model No.: 6906A5350A69 Range: 300 inches H o 2

Output: 4-20 MADC Prepared by A. W. Kapple Manager - Bai.em Generating Station SORC Meeting No. 13-77

LICENSEE EVE~T REPOR~

• CONTROL BLOCK 6

LICENSEE LICENSE EVENT NAME . LICENSE NUMBER TYPE TYPE l!I!J4N1J-1s1G1s1~l ~ 0101-10101010101_;.101qJ 1411111111:!,

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REPORT REPORT CATEGORY TVllE SOURCE DOCKET NUMBER EVENT CATE REPORT CATE

~ CON'T~; I OJ LJd ligJ ~p I 5 I 0 I -1 0 I 21 71 2J ~QI 1 I 21 1 I 7 I 1l ~~I 21 0 I s 1 71 id EVENT DESCRIPTION

@]!JI During Mode 1 operation, No. 13 S/G Steam Flow Channel I was declared I 1 89 ao

@:ID I in-operable due to inaccurate steam flow signals. No. 13 S/G Steam Flowj 7 8 9 z

@El Channel II.was operable throughout this occurrence. The differential 7 8 liliJI pressure transmitter was replaced~ This is the first occurrence of I ao iolejt"this nature. This event 77-08/3L. I" 7 8 9 PRIME 80 SYSTEM CAUSE COMPONENT COMPONENT COOE COOE COMPONENT COOE SUPPLIER MANUFACTURER VIOLATION LlJ LlJ

@TI]! Il l.iJ 7 B 9 10 11 IIINIS!TIR!UI 12 17 43 IFl11210!

44 47 ~

CAUSE DESCRIPTION*

9

~1 Differential pressure diaphragm and mechanical linkage to output I

~I 7 89 Seryo System failed. Differential pressure transmitter replaced j 80

[Ifill Model No. 6906A5350A69 Range: 300 In. H20 Output: 4-20 MADC I 7 8 9 80 FACILITY METHOOOF r.i':"1 STATUS '11.PQWER OTHER STATUS OISCOVERV OISCOVERV DESCRIPTION l.!J.!J ~. 10 I~ 12 I l'=_,jy,N~/A..,___----.-!I LsJ I . N/A 7 0 9 10 12 13 44 45 48 FORM OF ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Glil8 1 91.1..J l!J 10 I~11,.....N/A

.......~~~~~~~~44~

I I N/A 4~5=--~'--~~~~---~~~~~~~~~-:eao I

PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION I 0 !O I 0 I ~ _1_ _____...N..... /A.....__ _ _ _ _ _ _ _...___ _ _ _ __._J 7 9 11 12 13.. ii PERSONNEL INJURIES NUMBER. DESCRIPTION GE)IOIO!OI 1 89 h l.,,_

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_ _--'-~N~/~A~------------------=!I ao OFFSITE CONSEQUENCES

µEll§ . . N/A LOSS OR DAMAGE TO FACILITY itls!~

TVl>t!

.t~10 0£SCRIPTION

_ _ _ _ _ _ _N=/i;...:;A:.=..----'---------------.:icJ PUBLICITY Gli11:--------------------.J:L/..-=---------------------------------------=

7 89 80 ADDITIONAL. FACTORS

[l!)!..,.._ ________________ _.._=N~/A;:,_ ____________________________________--:j=*

7 89 iii III!J'::-------------------------------------------------------_.,.-------::.

7 89 ~

NAME: _ _ _A_._w_._.Ka_.P....P._l_*e_*- - - - - - - - - - PHONE: (609).3-6--S-7000 Ext.Salem-528