05000324/LER-1980-018-03, /03L-0:on 800205,during Normal Plant Operation, Mechanic Sent to Investigate Bergen-Paterson Snubber 2SW-173SS114.Snubber Found Unscrewed from Mounting Paddle. Caused by High Line Vibration

/03L-0:on 800205,during Normal Plant Operation, Mechanic Sent to Investigate Bergen-Paterson Snubber 2SW-173SS114.Snubber Found Unscrewed from Mounting Paddle. Caused by High Line Vibration

ML19344D503
Person / Time
Site:	Brunswick
Issue date:	03/05/1980
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19344D498	List: 05000324/LER-1980-018, Forwards LER 80-018/03L-0 05000324/LER-1980-018-03, /03L-0:on 800205,during Normal Plant Operation, Mechanic Sent to Investigate Bergen-Paterson Snubber 2SW-173SS114.Snubber Found Unscrewed from Mounting Paddle. Caused by High Line Vibration
References
LER-80-018-03L, LER-80-18-3L, NUDOCS 8003120548
Download: ML19344D503 (1)

LER-1980-018, /03L-0:on 800205,during Normal Plant Operation, Mechanic Sent to Investigate Bergen-Paterson Snubber 2SW-173SS114.Snubber Found Unscrewed from Mounting Paddle. Caused by High Line Vibration

Event date:
Report date:
3241980018R03 - NRC Website

text

_ _ _

U.S. NUCLEAR RECULATORY COMMISSION ZRC FORM 366

~

LICENSEE EVEfJT REPORT CONTROL BLOCK: l l

l l

l l

l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI 1

6 W l 14 l C l B l E l P l 2 l@@ l 0 l - l 0 l 0 l 0 l 0 l 0 l-l0 l 0 l@l 4 l 1 l l l 1 l 1 l@l l

l@

7 8 9 LICENSEE CODE 14 15 LICENSE NUMBEH 25 26 LICENSE TYPE JO

$7 CAT 68

'N

$U, "CE l L l@l 01510 l-l0 l 3 l 2 l4 @l 0 l 2 l 0 l 5 l 8 l 0 l@l 0 l 3 l 0 l 5 l 8 l 0 l@

COffT i

8 60 61 OOCK ET NUMDER 68 69 EVENT DATE 74 75 REPORT DATE tIO EVENT DESCHIPTION AND PROB ABLE CONSEQUENCES h During normal plant operation, a mechanic was sent to investigate Bergen-Paters'on

]

lTpq l snubber 2SW-173SSil4, on the 10" service water discharge line to the canal, for l

[ 5-l p l o 4 l

snubber tightness (LER 2-80-17). The snubber was found unscrewed from the mounting l gl paddle, thus making it inoperable.

l I

lo is i l I

10171 I Technical Specifications 3.7.5, 6.9.1.9b l

IOIs I I DE CODE SU C E COMPONENT CODE SU8 CODE S

E l Wl Blh Wh Wh lS lU lP l0 lR lT lh Wh d h o 9 7

8 9

10 ft 12 13 18 19 20 SEQUENTIAL

• OCCURRENCE REPORT REVISION

,,, EVENT YEAR REPORT NO.

CODE TYPE N O.

h,ag/RO 1 81 0l l-l 1011181 1/1 lol,I It l L-J 10I LER g

,,,21 22 23 24 26 27 29 29 30 31 32 K N AC ON C PL NT ME HOURS S

FOR B.

$ PPLIE VANUFACTURER I B l@l z l@

I z l@

Iz l@

l 01 Ol 01 O f LNjh l Y l@

l Al@

l B l 2 l 1 l 0 l(

33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h The snubber was reinstalled and tightened per the Bergen-Paterson technical manual. l i o l In addition, two drops of Locktite were applied to the threads which has proven I

gl effective in past events of loose mountinus due to high line vibration.

Other

[

gg snubbers in similar locations were checked with no problems found. All snubbers l

gl will continue to be inspected per Technical Specifications.

I l

7 8 9 SA 5

% POWER oTHER STATUS IS O RY OISCOVERY DESCRIPTION (Ej@ l0]9l6l@l N/A l

lAl@lMechanicSurveillance l

i s A!TivirY CO0 TENT CELEASED CP RELEASE AMOUNT OF ACTIVITY t OCATION oF RELEASE l

N/A l

l N/A [z_j g l zlgl 1 6 PER$oNNEL EXPOS ES oESCRiPTiONh NuMsER TvPE N/A l

y l0l0l0l@lZl@l PERSONNE L iN;UdiES oESCRiPTiONh NUMnER N/A l

10l0l0l@l i a 80 7

8 9 11 12 LOSS OF OR OAMAGE TO FACILITY S003120 5 %

i N/A

, 9 80 7

0 9 to ISSUEn@OESCRnPTION N/A l

llllllllll l l l' LN_[

l 2 a 68 69 30 i

8 9 fu 919-457-9521 1

PHONE; NAME OF PREPARER