ML19246B384
| ML19246B384 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 06/27/1979 |
| From: | Seidle W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Gary R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| References | |
| NUDOCS 7907130341 | |
| Download: ML19246B384 (1) | |
Text
IN e nte
[f ),, g h NUCLEAR REGULATORY COMMISSION o,
UNITED STATES
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REGION IV N'
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611 RYAN PLAZA DRIVE, SUtTE 1003 3, #4
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ARLINGTON, T E X AS 7G012 June 27,1979 Docket No. 50-445 50-446 Texas Utilities Generating Company ATTN: Mr. R. J. Gary, Executive Vice President and General Manager 2001 Bryan Tower Dallas, Texas 75201 Gentlemen:
Enclosed is supplement AU to Preliminary flotification PNO-79-67, " Nuclear Incident at Three Mile Island," dated June 26, 1979.
Should you have any questions regarding this review, please contact this office.
Sincerely,
/
/
Q W. C. segdfp, Chief Reactor Mstruction and Engineering Support Branch
Enclosure:
PNO-79-67AU 361 0~l 3 790713034l
IMMEDIATE PRELIMINARY NOTIFICATIGN June 26, 1979 PPILIMINARY UOTIFICATION OF AN EVENT OR UNUSUAL OCCb33ENCE -- PNO-79-67AU This preli:minary notification _ provides updated information of safety or public interest significance.
Facility: Three Mile Island Unit 2 Middletown, Pennsylvania (DN-50-320)
. gb.iect:
UPDATED STATUS REPORT Operational:
1.
Average coolant temperature is 154 degrees F.
The highest incore thermocouple tesperature indicar, ion is 267 degrees i.
Core flow is being provided by natural circulation.
Core cooling is being naintained by steasing the "A" Steam Generator to the main condenser on the bypass
- valve, Primary pressure is about 325 psi.
The licensee plans to slowly decrease pressure to about 250 psi.
2.
Daily measurcoents cf zeactor building water level still indicate 7.010.5 i
feet above floor level.
3.
The Pressure-Volume Control systen is nearing completion.
Cocpletion and te. ting of systems continues to progress slowly, with procure =ent problems and systc~a changes being significant contributors.
'Envirorneatal Status:
Environneatal radiation levels remain consistent with natural background levels.
Airborne releaser have been below Technical Specification lieits.
Fro: June 18-24, 35 air u mples, 2 milk saaples, 4 vegetation saeples and 2 soil sceples were collected by the NRC.
All cnalytical results were less than cinicua detectable activity (efDA).
EPA air, water and milk camples collected during th: week (up to June 22) showed no detectable activity f ro:a TMI.
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CONTINUED
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361 074
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Continued UKO-79-67AU Page 2 Juae 25, 1979
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Contact:
RCPaulus, IE x27246 DThompson, IE x22437 Distribution:
Transoitted H St i f. '~ '
Chairman Hendrie Comissioner Bradford S. J. Chilk, SECY Cecraissioner Kennedy Co :cissioner Ahearne C. C. Kannerer, CA
. Comissioner Gilinsky ACRS (For Distribution)
IG's(
Trans=it' ed: MNBB '! 'r, -'
P. Bldg "' id V. Stelle. IE
/
c L. V. Gossick, EDO H. R. Denton, NRR Region 2 ; EIIT ET '2.
~
H. L. Ornstein, EDO R. C. DeYoung, NRR Up idu, 'D s
J. J. Fouchard, PA R. J. Mattson, NRR N. M. Haller, MPA D. Vassallo, NRR (MAIL)
R. G. Ryan, OSP D. Eisenhut NRR J. J. Cuncings, OIA H. K. Shapar, ELD SS Bida 5 '/5 R. Minogue, SD W. J. Dircks, NMSS S. Levine, FES
" _ ' IE (TMI) Site (Provide copy to STATE)
Miite Ecuse Situation Roos FDAA (Provide copics to the Administrator and the Operations Center)
- DOE /E0C
ECPA EEW Hand:arry (FAA)
IMMEDIATE PRELIMINARY NOTIFICliTION
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