ML19224A802

Requests Info Re TMI Followup Be Forwarded to Official NRC Contacts in Host Governments & Visiting Senior Us Officials

ML19224A802
Person / Time
Site:	Crane
Issue date:	04/27/1979
From:	Lafleur J NRC OFFICE OF INTERNATIONAL PROGRAMS (OIP)
To:	Barmon W, Engelbrecht H, Jillson A INTERNATIONAL ATOMIC ENERGY AGENCY
References
NUDOCS 7905300410
Download: ML19224A802 (2)

Text

0F ACTION LINE ATTACHED 4

-.1_

v -

e U,u. n L, - a - A t D sa r USNRC:JDLAFLEUR,JR.

4/27/79:492-7765 OES/ NET /EIC:DHC00PER EUR/EPE:

USARn0N { INFO}

EA/RA:

CLEVELAND { INFO}

NEA/RA.

HENGELBRECHT { INFO}

ARA:

GJ0NES/JHENNEKE { INFO}

IO/ SCI:

AJILLSON { INFO}

L/N:

RJSETTAUER { INFO}

IMMEDIATE ATHENS, BERN IMMEDIATE, SOMBAY InnLDIATE, 80NN InhE-DIATE, BRASILIA INNEDIATE, BRUSSELS InnEDIATE, EUENOS AIRES IMMEDIATE, USIAEA, USOECD, USEEC - PASS TO PARA L PARTIES ASAP E.O.

1165E:

N/A

(

TAGS:

TECH, SUBJEC6 :

iHREE MILE ISLAND FOLLOU-UP REF:

A-DEE1 1

ADDRESSEES REGUESTED TO PASS FOLLOUING INFORMATION TO 0FFICIAL NRC CONTACTS IN HOST GOVERNMENTS AND TO VISITING SENIOR U.S.

OFFICIALS, ASAP, DURING DAYLIGHT HOURS, AND TO USE AS APPROPRIATE IN ANSUERING INGUIRIES.

PLEASE NOTE THIS INFORMATION IS PRELIMINARY AND SUBJECT TO CONFIRMATION SY OFFICIAL NRC ORDER, UHICH UILL BE SENT TO ADDRESSEES UITHIN THE NEXT FEU DAYS.

2 IN ADDI1_0N TO THE PROCEDURAL AND OTHER STEPS ALREADY TAKEN SY THE OPERATORS OF 98U PLANTS, ALL OF THESE BSU LICENSEES UILL TAKE THE FOLLOUING "SHORT-TERN" STEPS, ON THE SCHEDULE OUTLINED 9ELOU:

A.

REVIEUING AND UPGRADING, AS APPROPRIATE, AUXILIARY FEED 9ELI ABILITY AND PERFORMANCE { TIMELINESS};

3 REVIEUING RESULTS OF FnEA ANALYSIS OF ICS AND TAKING ACTIONS, AS TO REDUCE ITS LIKELIHOOD OF INITIATING OR EXACEREATING TRANSIENTS; 168 140 UNCLASSIFIED p

--a a-.

79053 00 y/ o

/

U CLASSIFIED l2 C.

HARD UIRING ANTICIPATORY SCRAM BASED ON FU TRANSIENTS; 3

REVIEUING DETAILED ANALYSES OF PLANT RESPONSE TO TRANSIENTS TO EFFECTS OF HPI INJECTION, AND RETURN TO NATURAL CIRCULATION COOLING AND E.

REVIEUING NEU AND AUGMENTO STANDING INSTRUCTIONS AND EMERGENCY PROCEDURES FOR PLANT OPERATORS DEVELOPED AS A RESULT OF A-D ASOVE, AND TRAINING PLANT OPERATORS AND THE NEU AND AUGMENTED INSTRUCTIONS AND PROCEDURES INCLUDING THE STATIONING 0F A FULL-TIME DEDICATED OPERATOR TO TAKE APPROPRIATE PROMPT MANUAL ACTION 5 3

SCHEDULE - THE FOUR OPERATING PLANTS INCLUDE 3 PLANTS OF DUKE POWER, IN OCONEE, SOUTH CAROLINA, AND THE SMUD UNIT AT RANCHO SECO, CALIF.

THESE FOUR OPERATING PLANTS UILL BE SHUT D0UN ACCORDING TO THE FOLLOUING SCHEDULE:

ONE UNIT OF DUKE FOUER AND RANCHO SECO - APRIL 2ST SECOND UNIT OF DUKE POUER - MAY 12; THIRD UNIT OF DUKE POUER -

" n* v.

1 4..

ei s

4.

NONE OF THE PRESENTLY SHUTDOUN Bau PLANTS UILL SE STARTED UP UNTIL THESE STEPS ARE TAKEN.

THE ROUGH NRC ESTIMATE IS THAT THESE CHANGES CAN SE MADE IN ABOUT ONE MONTH.

5 SOME LONGER-TERN DESIGN, PROCEDURAL, AN D TR AINIi.'G CHANGES ARE STILL ALSO SEING CONSIDERED 9Y NRC.

6 THE ASOVE MEASURES ARE SASED ON A SCHEDULE AGREED TO SY THE VARIOUS BEU PLANT LICENSEES.

THE NRC COMMISSIONERS VOTED ON UHETHER TO ISSUE AN NRC ORDER THAT THESE SHORT-TERM STEPS UOULD BE TAKEN.

THE VOTE UAS 3-2 IN FAVOR OF ISSUING A FORMAL ORDER.

7.

IN PARA EE ABOVE, FMEA IS " FAILURE MODE EFFECTS AND ANALYSIS" AND ICS IS " INTEGRATED CONTROL SYSTEMS."

YY 4

UNCLASSIFIED

- - - -. - - - ~ -. -

168 141