05000029/LER-1977-005-03, /03L-0:on 770116,vapor Container Drain Tank Level Transmitter Diaphragm Failed During Normal Operation.Caused by Transmitter Operating Between Crud Sensing Lines. Transmitter Replaced & Sensing Lines Cleaned

/03L-0:on 770116,vapor Container Drain Tank Level Transmitter Diaphragm Failed During Normal Operation.Caused by Transmitter Operating Between Crud Sensing Lines. Transmitter Replaced & Sensing Lines Cleaned

ML19345A358
Person / Time
Site:	Yankee Rowe
Issue date:	02/15/1977
From:	Boutwell R YANKEE ATOMIC ELECTRIC CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19345A357	List: 05000029/LER-1977-005, Forwards LER 77-005/03L-0 05000029/LER-1977-005-03, /03L-0:on 770116,vapor Container Drain Tank Level Transmitter Diaphragm Failed During Normal Operation.Caused by Transmitter Operating Between Crud Sensing Lines. Transmitter Replaced & Sensing Lines Cleaned
References
LER-77-005-03L, LER-77-5-3L, NUDOCS 8011190297
Download: ML19345A358 (2)

LER-1977-005, /03L-0:on 770116,vapor Container Drain Tank Level Transmitter Diaphragm Failed During Normal Operation.Caused by Transmitter Operating Between Crud Sensing Lines. Transmitter Replaced & Sensing Lines Cleaned

Event date:
Report date:
0291977005R03 - NRC Website

text

LLI\\ J J " UJ/ UJL UCENSEE EVENT REPORT ( Neguh? Oc.cket Fila lll l

l l

l [PLEASE PRINT ALL REQUIREj INFoRMATION)

,(1 CONTROL block:l

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LICENSE NUMBER PE YPE

@ lM l A l Yl Kl Rl1l l0 l0 l-l l0 l0 l0 l0 l-l 0 l 0 l l 4l1 l1l1l1l l0 l3 l 7 89 14 15 25 26 30 31 32 CATEGORY PE SOUR DOCKET NUMBER EVENT DATE REPORT DATE

@ CONT l l

l W [LJ l0 l 5 l 0 l-l 0 l 0l 2l 9l l0 l1l1l 6l 7l 7l l0 l2 l1l 5l 7l 7l 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DEScR;PTION sm l During normal operation the Vapor Container Drain Tank Level Transmitter diaphragm l**

7 89 g l failed. This system is required to be operable per Technical Specification, Section l g l 3 5-1.

The containment atmosphere particulate radioactivity monitoring system was l 7 89 7g8 operable and is used as another means of detecting leakage. This event is non-Bj 80 f5Til I repetitive. The transmitter was replaced with a spare.

(LER 77-05/03L).

l 7 89 7 89 muE YDE UE COMPONENT CODE SUF' PUER T

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lIIEl lEl l I l N l Sl Tl R I U l

[_AJ l F l1 l8 l0 l [NJ 7 89 10 11 12 17 43 44 47 48 CAUSE DESCR3 TION

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l A Foxboro MOdel 13RA Transmitter diaphragm failed.

It was operating between sensing l ae 8 f lines which contained excessive cmd. The transmitter was replaced and t 7

33 89 8 9 lines from the test taps to the transmitter were cleaned.

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1o i STAT

% POWER OTHER STATUS 0:SCOVERY OtSCOVERY DESCRiPTON lEl l 019 l7 l l NA l U l

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7 8 9

10 12 13 44 45 46 8s t

C: E E SE AMOUNT OF ACTMTV LOCATON OF RELEASE ia Iz l I 21 i

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10 11 44 45 BC FERSONNEL EXPOSURES NUVEER TY;E CESCRtPTON l

113 1010l 0 l l zl l

KA BC 7 85

- i 12 13 FERSONNEL INJURES NUVE ER CEEOR PTON 8 101010]

l N/A BC 7 89 11 12 OFFSITE CCNEECUENCES I

@l N/A BC 7 8S LOSS OR CAMAGE TO FACILITY TYPE DESC A : TON [2]

l N/A 13 BC 7 89 10 PUBLCITY 17 l N/A 7 89 ADDITIONt.L FACTOR 3

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U.S, NUCLEAR REGULATORY C'J' 'SSION DOCKET NUMBER (2 188

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50-29

''" N Eb REPORT NRC DISTRIBUTION FOR PART 50 DOCKET MATERI AL INC TO: J. P. 6REll'LY FROM: YANKEE ATOMIC ELEC. CO.

DATE OF OOCUMENT R0WE, MASS.

2/15/77 H. A. AUTIO DATE RECEIVED 2/24/77 3LET ER O N OTO RiZ E D PROP tNPUT FORM NUMBER OF COPIES RECEIVED CD R IGIN AL C U NC LAS$1FIE D CCCPy 30 DESca:PTICN EN C LOSU R E LTR. TPa';S THE FOLLOWING.......

LICENEEE EVENT REPORT FOR R.O. # 77-05/3L, ON 1/16/7 7 CONCERNING THE VA,POR CONTAINER DPAIN TANK LEVEL BEING INOPERATIVE.......

( l SIGNED CY. RECEIVED) gQgg (lP)

(lP)

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PLANT NAME: YANKEE R0WE NCTIE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J. COLLINS FOR ACTION /INFORMATION ~

SAB 2/25/77 i

ft BRANCH CHIEF:

SCHWENCER 1 U/3 CYS FOR ACTION

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