ML20244A975
| ML20244A975 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 03/10/1980 |
| From: | Chrissotimos N, Little W NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| References | |
| PNO-III-80-045, PNO-III-80-45, NUDOCS 8004240266 | |
| Download: ML20244A975 (2) | |
Text
,
]
i PRELIMINARY. NOTIFICATION l
Date: March 10, 1980 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURR
. j This Preliminary notification constitutes EARLY notice of events of POSSTHlE 1
saf ety or,public interest significance.
The information presented is as initially received without verification or evaluation and is basically all I
e that is known by IE sta ff as of this date.
Facility:
Commonwealth Edison Coaipany Quad Citie.a Nuclear Power Station, Unit 2 i
Docket Number:
50-265 Cordova, T I.
m" m IU Subj ect:
CRACK IN CORE SPRAY PTPTNG hb 1-
,d,q a
" * ' ' ' ' inc.ide the drywn11 van detcetod while performing a hydrostati m x primary system on March 8, 1980.
fr]
.w d,C p =,
The leakaan appearn to he in the heat affected zone where two 45 %1bevs are unidnd together outside rhn biological shield upstream of the uaftCeu<lo The inakaga appaarx to he from three to four pin holes and is estimatesi tFbe loss than 0.5 gallons per hour.
The leakage is in an unisolatable section of line approximately four feet f rom the reactor vessel, and the pin hulus are approximate' 74 feet obove the top of: the rnactor core.
See the attache.d sketch showing the piping configuration.
The licensee pluns to ultrasculcally examine both loops of all of the core spresy piping in the c*rywell for other indications beginning Tuesday, March 11, 1980.
Unit 2 is in a refueling outage. and IL 1s not yet known how long this will
" extend the outogc.
Neither the licensee nur Region III are planning a news release at this time.
The State of Iowa is being notified.
The Resident Inspector was notified of this e.ve.nt at 4:30p.m. on March 8,1980.
' s current au of 9:30s.m. on March 10, 1980. '
This Int ~ormat i
g ' 3. Chriusotimos. Resident 309/654-2227; A ' ' Y
Contact:
Inspector, W.
- Ittle, 384-2552.
Distribution:RIII, Transmitted H St Chairman Ahearne Commissioner Hendrie S. J. Chilk, SECY Comissionce Cilinsky Com:nissipner Bradford C. C. Kacs=rer, CA Commissioner Kennedy ACRS.
(For Distribution)
Transmitted:
MNBB P. Bldg IE:XOOSi (IE: EQ I WJ J. Dircks, EDO H. R. Denton, NRR C. Michcison, AEOD R. C. DeYoung, NRR J. J. Fouchard, PA R. J. Mattson, NRR Landow (6 min / par N. M. Haller, MPA D. Vassallo, NRR J. J. Cummings, 01A R. G. Ryan, OSP D. Eisenhut, NRR H. K. Shapar, ELD SS Bldg (MAIL)
J. G. Davis, NMSS R. Minogue, SD S. Levine, RES IE:XOOS gooy140 2M y.
l PRELiffTNARY NOTIFICATION
__