05000324/LER-1979-007-01, /01T-0 on 790227:during Reactor Annulus Pressurization Analysis,Pipe Whip Restraint in Each Unit Did Not Conform.Caused by Improper Design of Restraint.Architect & Owner Will Design Addl Restraint

/01T-0 on 790227:during Reactor Annulus Pressurization Analysis,Pipe Whip Restraint in Each Unit Did Not Conform.Caused by Improper Design of Restraint.Architect & Owner Will Design Addl Restraint

ML19263D024
Person / Time
Site:	Brunswick
Issue date:	03/13/1979
From:	Tollison A CAROLINA POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19263D020	List: 05000324/LER-1979-007, Forwards LER 79-007/01T-0 05000324/LER-1979-007-01, /01T-0 on 790227:during Reactor Annulus Pressurization Analysis,Pipe Whip Restraint in Each Unit Did Not Conform.Caused by Improper Design of Restraint.Architect & Owner Will Design Addl Restraint
References
LER-79-007-01T, LER-79-7-1T, NUDOCS 7903200444
Download: ML19263D024 (1)

LER-1979-007, /01T-0 on 790227:during Reactor Annulus Pressurization Analysis,Pipe Whip Restraint in Each Unit Did Not Conform.Caused by Improper Design of Restraint.Architect & Owner Will Design Addl Restraint

Event date:
Report date:
3241979007R01 - NRC Website

text

we L r e..

oo d.

LAToRY CoMMISSloN (7-77)

LICENSEE EVENT REPORT CONTROL BLOCK:

l l

l l

l l

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

lo lil N lC lB lE lPl2l@l0 l 0l - 0l 0l 0 0 ] 0 l - l 0 l 0 l@l 4 1l l j 1l 1l@l l

lg 7

8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO U CAT 58 CON'T l 719 Ql0 l3 l1 l3 l7 l9 @

SO Rg l X l@l0 l 5 l0 l-l0 l3 l2 l4 @l0 12 2

7 o

i 7

8 60 61 OOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o

2 lDuring the Reactor Annulus Pressurization Analysis, one pipe whip restraint in each I

o 3 junit did not conform to the pipe rupture-analysis. This restraint is located on the I

ffeedwater line at azimuth 135 and elevation 69'-2 1/4."

The analysis of a feedwater o

4 o

s trupture was based on a centerline of nozzle to centerline of pipe restraint distance l

0 6

lof 3'-0 3/4."

At present this distance is 4'-7 1/4."

(Technical. Specification..

1 0

7 16.9.1.81).

I o

a l

l 7

8 9 80 C DE CODE SUSC E COMPONENT CODE SU8 CO D'E SU E

lC lH l@ lB l@ l Al@ lX lX lX lX lX X l@ lZ l@ y @

O 9

7 8

9 to 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION L

EVENT YEAR REPORT NO.

CODE TYPE N O.

h a'ER Ro 7!9!

I-l l0l0l7 l/l 10 l1 l lT l-l l0 l yuME

,,,21 22 23 24 26 27 28 29 30 31 32 TK N AC O O P NT MET HOURS 22 S 8 i FOR 8.

SUPPLIE MANUF C RER

[ Z lgl34F [ g l5Zlg [Z[@

l0l0l0 Vl lNl@

lY g lAlg lC[0l8l0lg 33 3

36 31 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS lThe design of this restraint was lowered to provide a larger " window" for the CRD

_ - l-i o

liji,l return line. Architect and owner will design an addtional restraint or impact I

i 2

labsorber which conforms to the nice ructure ann 1vgin en ho unna i-cnninnc+5nn with I

y lthe present restraint.

Selection of an acceptable design will be based on availabilitvl jof materials so that the new design can be incorporated prior to each unit startuo.

l i

4 7

8 9 80 ST

% POWER OTHER STATUS l$

RY DISCOVERY DESCRIPTlON (E_J @ l 0 8l0l@l NA l

l D l@l Notification from architect /ennineer l

1 5

ACTIVITY CO TENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE

@l NA l

l NA l

1 6

7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

l0l0l0l@lZl@l NA l

1 7

PERSONNE L INJURIES NUMBER

DESCRIPTION

[ t,13,,J l 0 l 0 0 l@l NA l

T 8 9 11 12 80 LOSS OF OR DAMAGE TO FACILITY I

43 03@d44(I TYPE

DESCRIPTION

LLL9J Iz l@l l

NA 7

8 9 10 80 PUBLICITY NRC USE ONLY ISSUED

DESCRIPTION

[2_[o_j U@l NA ll ll lIIIlll1 7

8 9 to 68 69 80 5 o

NAVE OF PREPARER A-C.

Tollign9 PHONE: (419) 447-6701 g