ML19329A703

From kanterella
Jump to navigation Jump to search
Supplements Re Possible Loose Object in Lower Reactor Vessel Head.Retrieval Completed in Mar 1974 After Shutdown on 740122 Caused by Failure of Seal on RCS Pump 2B2.Startup Anticipated for Week of 740421
ML19329A703
Person / Time
Site: Oconee Duke Energy icon.png
Issue date: 04/12/1974
From: Thies A
DUKE POWER CO.
To: Anthony Giambusso
US ATOMIC ENERGY COMMISSION (AEC)
References
NUDOCS 8001090684
Download: ML19329A703 (2)


Text

_

AEC DTLIEUTT ON F_0R I' nT 50 DOCKET PAT"RI AL (T.:n'ORARY FORM)

CONTROL NO:

FILE:, _ _

FROM:

DATE OF DOC DATE REC'D LTR MEMO RPT OT!!ER Duka Power Company Charlotte, N.C. 28201 A.C. Thies 4-12-74 4-16-74 X

TO:

ORIG CC OTHER SENT AEC Piin XXX SENT LOCAL PDR XXX A. Giambusso 1 signed CLASS UNCLASS PROP INFO INPUT NO CYS REC'D DOCKET NO:

XXX 1

50-270 DESCRIPTION:

ENCLOSURES:

Ltr re their 1-10-74 ltr.....furn addl info ccncern....possible exidtence of a loose y

cbject in the lower reactor vessel: head of ff, p- -, _

-th t' i / - ~~

m,,

Octnee #2.....

~^

. ~ ~

PLANT NAME:

Oconee #2 FOR ACTION /INFORMATION 4-19-74 JB BUTLER (L)

VSCIMENCER(L)

ZIEMANN(L)

REGAN(E)

W/ Copics W/7 Copies W/ Copies W/ Copics CLARK (L)

S10LZ(L)

DICKER (E)

W/ Copies W/ Copies W/ Copies W/ Copies PARR(L)

VASSALLO(L)

KNIGHION(E) -

ut Cay:.i.

Wl C 4..

W/ Cuvia.

WI Cuete.

KNIEL(L)

PURPLE (L)

YOUNGBLOOD(E)

W/ Copies W/ Copies W/ Copies W/ Copies INTERNAL DISTRIBUTION GjFT TECH REVIEW DENTON A/T IND C PDR MIENDRIE GRDiES LIC ASST ERAIniAN

~ vt)GC, ROOM P-506A SCHROEDER GAMMILL SALTZMAN DIGGS (L)

/MUNTZING/ STAFF

/MACCARY KASTNER U* N GEARIN (L)

/ CASE

/ KNIGHT BALLARD

/ COULBOURNE (L)

PLANS GIAMBUSSO A>AULICKI SPANGLER LEE (L)

MCEONALD (L)

DUBE w/ Input

/10 E (L)(BWR)

S LO ENVIRO ED E)

INFO DEYOUNG(L)(WR)

A OUSTON MULLER SERVICE (L)

SKOVHOLT (L) dOVAK DICKER SHEPPARD (L)

C. MILES

/. KING (E/W-358)

GOLLER(L)

AOSS KNIGHTON SLATER (E)

B

/ KLECKER P. COLLINS

./1PPOLITO YOUNGBLOOD SMITH (L)

/ EISENHUT DENISE

/I'EDESCO REGAN TEETS (L) vREG OPR VLONG PROJECT LDR WADE (E)

FILE & REGION (3) gf.AINAS WILLIAMS (E) g "*

VMORRIS

/tENAROYA HARLESS WILSON (L)

/STFELE

/VOLIBER EXTER'IAL DISTRIBUTION

'/[ct

/E-LOCAL PDR 'Walhalla. S.C.

v1 - TIC (ABERNATHY)

(1)(2)(10)-NATIONAL LAB'S 1-PDR-SAN /LA/NY A - NSIC(BUCHANAN) 1-ASLEF(E/W Bidg,Rm 529) 1-GERALD LELLOUCHE 1 - ASLB 1-W. PENNINGTON, Rm E-201 GT BROOKHAVEN NAT. LAB 1 - P. R. DAVIS (AEROJET NUCLEAR) 1-CONSULTANT' S 1-AGMED(Ruth Gusser.n)

/16 - CYS ACRS

"^'""'c Sent to Goulbourne NEWMARK/BLLi1E/AGBABIAN EM-B-127, GT.

4-19-74 1-GERALD ULRIKSON...ORNL l-RD.. MULLER..F-309 G':

1-B & M SWINESROAD, Rm E-201 GT 8 0 0, a en G8V

Duna Powen Con pAsy POwtift UU1LDINtt 422 SOUTH CHUNCH STHFLT C?

., tun.,8 I r N C m201 A. C. Tu ses Savon Wg Pass.c g.,

Peoovctena=otan=,msseo April 12, 1974 P. o.nox ene Mr. Angelo Ciambusso si Directorate of LicensingDeputy Director for Reactor Projects Nb bi, i h'

S

^

C APR161974 n -}

Office of Regulation U. S. Atomic Energy Commission n v.,,.3~.,

]f Washington, D. C.

iJ"'-

20545 4

t, n.,

,'/

Re:

Oconee Unit 2 Docket No. 50-270

, (/\\

- E' Lear Mr. Giambusso:

My letter of January 10, 1974 informed i

a loose object in the lower reactor vessel hyou of the possible existe e

extensive.

Oconee Unit 2 could continue'nvestigations and evaluations, we conclud d[

i After monitoring program would be instituted for investigation and monitoring whichcon e

8-Your letter of January 15, 1974 January 10, 1974.

cceptable under the conditions were outlined in my letter of During routine startup on January 22

~ pump 2B2 failed causing the unit to be shut d1974, a seal on reactor cool you in my letter of February 1, 1974 own.

This was reported to I

coolant pump would require a lengthy shutdSince maintenance of the r f

that time to unload the core and retrieve the loose object in the lowerown, reactor vessel head.

Retrieval operations were completed i Fuel has been reloaded into the Unit 2 n March, 1974.

anticipated during the week of April 21 reactor vessel, and startup is which we.~e in effect prior to the discovaccort.y.nce with 1974.

Unit startup will be in e ures and surveillance program escalatiot testing at the 75 percent plate ery of the loose object.

Very truly yours, au will then resume.

Power A. C. Thies-sc 30Y.+p4" ACT:vr b

Q" 80 3

cc:.Mr. Norman C. Moseley-50 e

g

  • /

a.

,A

+/i 9

-f