ML20216K093
| ML20216K093 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 09/29/1978 |
| From: | Collins W, Jordan E, Woodruff R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-78-175, NUDOCS 9804220091 | |
| Download: ML20216K093 (1) | |
Text
PT>P QU% G 3
Su N f.
i PRELIMINARY NOTIFICATION d.-
~,
September 29, 1978 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-78-175
.This preliminary notification constitutes EARLY notice of an event of
_POSSIBLE safety or public interest significance.
The information presented ir as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
I F_ACILITY:
Carolina Power and Light Company Brunswick, Unit No. 1 Docket No. 50-325 i
Southport, North Carolina
SUBJECT:
ULTRASONIC INDICATION OF POSSIBLE AN0MALY ON ONE JET PUMP RISER SAFE-END WELD Ultrasonic (UT) examination of one jet pump riser safe-end September 27 disclosed an indication of a possible anomaly.
Subsequent radiographic ~
examination did not correlate indications found by ultrasonic examination.
This weld is at the point where the jet pump riser penetrates the reactor m
vessel.
The examination was conducted as a result of cracks found in similar safe-ends at the Duane Arnold facility.' The licen:;ee has concluded
.as a result of analysis done to date that this indication.is not significant; I
a however review by both the licensee and NRC is continuing.
Unit No. 1 l
startup on September 29, is planned.
Earlier UT examinations of nozzle safe-ends on Unit 2 revealed no significant indications and Unit 2 has returned to operation.
Media interest is not expected. A press release is not planned by the I
licensee nor NRC.
The State of North Carolina has been notified.
l
\\
Region II (Atlanta) received notification of this occurrence by telephone from the Plant Manager at 4:00 p.m. on September 27.
This information is current as of 4:00 p.m. on September 29.
Contac t:
RWoodruff, IE x28180 WCollins; IE x28180 EJordan, IE x28180
.D_istributico:
Transmitted H St Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA Conniss40ner Gilinsky (ForDistribution)
Transmitted:
f1NBB $N P Bldg b J.' G. Davis,JE 0 L. V. Gossick, ED0 H.R.DentanTHRR Regionft.- Jo 1 S. H. Hanauer, EDO J. J. Fouchard, PA SSBldgo'-[/
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(MAIL) p,1 N. M. Haller, MPA C. V. S6EfiTNMSS
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PRU. MINARY No rli1 CATION D b 9804220091 780929 PDR I&E PNO-78-175 PDR