ML20069A443
| ML20069A443 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 07/30/1980 |
| From: | Lafleur J NRC OFFICE OF INTERNATIONAL PROGRAMS (OIP) |
| To: | Abraham P INDIA |
| Shared Package | |
| ML20069A137 | List: |
| References | |
| FOIA-90-124 710-824-0415-NR, 710-824-415-NR, NUDOCS 8009120642 | |
| Download: ML20069A443 (2) | |
Text
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e U.S. NUCLEAR REGULATORY C0fHISS10N 0FFICE OF INTERNATIONAL PROGRAMS PRIORITY UNCLASSIFIED VASHINGTON, DC 20555 TLX: 710-824-0415 NRC BHDA July 30,1980 W.S.LAVINE / J.D.LAFLEUR, JR., OIP 4P?-7788 bec: JDL WSL Ind II.
MR. P. ABRAHAM DAE SAFETY REVIEW COMMITTEE BHABHA ATOMIC PISEARCH CENTRE TR0fBAY, BOMBAY 400 085 INDIA TLX: 11 2817 BARC IN THIS RESPONDS TO YOUR LETTER DATED JULY 15, 1980.
1.
PARAGRAPHS 2-4 REPEATS THE TEXT OF A TELEX I SENT TO YOU ON JULY 9 IN RESPONSE TO YOUR TELEX OF JULY 4.
2.
THI, UNIT 1. EXPERIENCED A REACTOR COOLANT SYSTEM OVERFLOW ON 8
JUNE 27. THE FOLLOWING IS THE TEXT OF THE PRELIMINARY NOTIFICATION ON THE EVENT.
r 3.
AT 9:01 A.M. EDT, JUNE 27, 1980 AN INADVERTENT EMERGENCY SAFEGUARDS (ES) SYSTEM WAS ACTUATED, WHILE THE REACTOR WAS IN COLD SHUTDOWN WITH THE RCS PARTIALLY DRAINED FOR EDDY CURRENT TESTING. RCS l WATER LEVEL WAS BEING MAINTAINED NEAR THE TJACTOR YESSEL INLET AND OUTLET l N0ZZLE HEIGHTS AND ONE DECAY HEAT PUMP WAS PROVIDING RECIRCULATION COOLING. AFTER THE ES ACTUATED. THE DECAY HEAT SUCTION ISOLATION VALVE FROM THE BORATED WATER STORAGE TANK (DH-VSA) AUTOMATICALLY OPENED AT W t A' a
l 9:02 A.M.
THE OPEN VALVE ESTABLISHED A FLOW PATH FROM THE l
00$HbV).-
BMST THROUf;H THE OPERATING DH PUMP TO THE OFF4e4 1
- 1.. 2.......UNCtASS1FIeD.....
sum c>.................
o reF 4 fog.,e 31, (p.16% Nnche 0240 D U.S.COVERNMENT P8HNTING OFFICEe 1979 289 349
)
MR. P. ACRAHAM PAGE 2 0F 2 TLX:
11 2817 BARC IN a
1 l
RCS. THE FLOW PATH WAS SECURED AT 9:04 A.M. SHEN THE CONTROL ROOM OPERATOR MANUALLY SHUT DH-V5A.
AT THAT TIME BOTH THE UPPER AND LOWER MANWAY COVERS AND THE LOWER HANDHOLE COVER HAD BEEN REMOVED FROM THE "8" STEAM GENERATOR IN PREPARATION FOR PLUGGING ONE TUBE LATER TODAY, AND NO ONE WAS INSIDE THE STEAM GENERATOR. ABOUT 10,000 GALLONS OF WATER WAS TRANSFERTJD FROM THE BWST INTO THE RCS AND OUT THE LOWER HANDHOLE ONTO THE REACTOR BU!i.0iM FLOOR AND TO THE BUILDING SUMP DURING AND AFTER THE TIME WHEN DH-V5A WAS 00EN. THE RB SUMP WAS INTENTIONALLY PUMPED TO THE AUXILIARY BUILDING SUMP TO NEVENT OVERFLOW.
THERE WAS AT NO TIME A LOSS OF DH SYSTEM COOLING OF THE RCS.
NO PERSONNEL CONTAMINATION OR OFFSITE RELEASE OCCURRED.
4.
TMI, UNIT 2. HAS BEGUN THE PROGRAM TO VENT THE CONTAINMENT OF RADI0 ACTIVE KRYPTON GAS.
NRC HAS SENT TWO TECHNICAL NOTIFICATION CABLES, fl NUMBERS 80-7 AND 80-8, THROUGH STATE DEPARTMENT CHANNELS TO DR. SETHNA'Mtr INFORM ME-IF HE HAS NOT RECEIVED THE INFORMATION.
5.
I AM ATTEMPTING TO OBTAIN COPIES OF THE ABNORMAL OCCURRENCES REPORT COVERING THE PERIOD JULY 1977 THROUGH DECEMBER 1978 AND HOPE TO SEND THEM IN THE NEAR FUIBRE. NRC WOULD APPRECIATE RECEIVING ABNORMAL OCCURRENCE INFORMATION COMPILED ON THE OPERATION OF THE TARAPUR REACTORS.
IS THIS POSSIBLE?
l 6.
! AM ALSO SENDING YOU INFORMATION DIRECTLY BY TELEX THAT I AM SENDING l
TO DR. SETHNA THROUGH U.S.' STATE DEPARTMENT CHANNELS. THESE TELEXS CAN BE-IDENTIFIED BY THE SUBJECT LINE THAT ENDS WITH A NUMBER SUCH AS NRC 80-12,.ETC.
PLEASE ADVISE ME THAT YOU ARE RECEIVING MY TELEXS.
REGARDS, LAFLEUR, NRC.
END 1
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