ML19261E816
| ML19261E816 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/28/1979 |
| From: | Cunningham J, Flack E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-79-375, NUDOCS 7910110626 | |
| Download: ML19261E816 (1) | |
Text
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PRELIMINARY NOTIFIt TION August 28, 1979 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL CCCURRENCE--PNO-79-375 This preliminary notification constitutes EARLY notice of events of POSSIBLE saf ety or public interest sionificance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
Facility:
Metropolitan Edison Company inree Mile Island, Unit 2 Middletown, Pennsylvania (Docket No. 50-320)
Subject:
HIGH AIRBORNE ACTIVITY IN THE FUEL HANDLING BUILDING At approximately 9:15 a.m.,
on August 28, 1979, high airborne activity was detected in the fuel handling building and several workers were required to leavetgearea.
Air samples countyd on a Ge(Li) system indicated levels of 3.75 E uCi/cc Cs-134 and 1.70 E uti/cc Cs-137.
UsingaCsq37: Sr-89, 90 ratiofromprevjoussamples,licenseeestimatedSr-89is5.1E uCi/cc and Sr-90 is 2.7 E uCi/cc.
Tne probable source of the activity is valve MUV233A, a 1" valve in the reactor coolunt takeup system which had a small (pencil stream) packing leak.
The packing has been tightened and the leak has been stopped.
The valve is located in a valve alley on the 281 ft. elevation of the fuel handling building.
This valve alley is not normally occupied.
No personnel overexposures have been reported.
The NRC Resident Office staff will review exposure evaluations.
Media interest is expected because of public sensitivity to Three Mile Island activities.
The Commonwealth of Pennsylvania was informed at 2:40 p.m.,
August 28, 1979.
NRC, Region I, (Philadelphia) received notification of this occurrence by a telephone call from the IE resident staff at 10:00 a.m., August 28, 1979.
Contact:
LJCunningham, IE x28188 EDFlack, IE x28188 Distribution:
Transmitted H St Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Cerissicner Kennedy Commissioner Ahearne C. C. Kammerer, CA Ccmmissioner Gilinsky ACRS (For Distribution)
Transnitted:
MNEB P. Bldg ;-
V. Stello, IE L. V. Gossick, EDO H. R. Deifton,'NRR Region H. L. Ornstein, EDO R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR Landow N. M. Haller, MPA D. Vassallo, NRR J. J. Cummings, CIA R. G. Ryan, OSP D. Eisenhut, NRR H.
K.
Shapar, ELD SS Bldg (MAIL)
W. J. Dircks, NMSS R. Minogue, SD S. Levine, RES
=-
PRELIMINARY NOTIFICATION 7 910110 $($ r
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