PNO-I-98-023, on 980622,orderly Shut Down of Susquehanna Unit 2 Initiated to Repair Small Leak on Flow Element in Condensate Filtration Sys.Licensee Continues to Assess Root Cause of Failed Weld.Licensee Issued Press Release
| ML17159A401 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 06/23/1998 |
| From: | Anderson C, Richmond J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | |
| References | |
| PNO-I-98-023, PNO-I-98-23, NUDOCS 9806240033 | |
| Download: ML17159A401 (4) | |
UA'l'KNUBX REGULATO INFORMATION DISTRIBUTXO STEM (RIDS)
ACCESSION NBR:9806240033 DOC.DATE: 98/06/23 NOTARIZED: NO DOCKET FACIL:50-388 Suscpxehanna Steam Electric Station, Unit 2, Pennsylva 05000388 AUTH.NAME AUTHOR AFFILIATION RICHMOND,,J.,
Region 1 (Post 820201)
ANDERSON,C.
Region 1 (Post 820201)
RECIP.NAME RECIPIENT AFFILIATION
SUBJECT:
PNO-I-98-023:on 980622,orderly shut down of Susquehanna Unit 2 initiated to repair small leak on flow element in condensate filtration sys.Licensee continues to assess root cause of failed weld. Licensee issued press release.
DISTRIBUTION CODE: IE34F COPIES RECEIVED:LTR ENCL SIZE:
TITLE: 50 Docket E Vendors PNO/Non-Routine Event/Safeguards Event (PN)
NOTES:
RECIPIENT ID CODE/NAME COPIES LTTR ENCL RECIPIENT ID CODE/NAME COPIES LTTR ENCL INTERNAL: ACRS NRR/DRPM/PERB OE DIR RES/DRA RES/DST RES/RPHEB EKTERNAL: LITCO BRYCE,J H NRC PDR TXT 1
NOAC 1
1 IL CENTER 1
86 1
RES/DET/EIB 1
RES/DRA/DEPY 1
RES/DST DEPY 1
RGN1 FILE 01 NOTE TO ALL "RIDS" RECIPIENTS:
k PI,EASE HELP US TO REDUCE WASTE.
TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LIS'R REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTR<
DESK
{DCD)
ON EXTENSION 415-2083 0
TOTAL NUMBER OF COPIES REQUIRED:
LTTR M ENCL 15
'une 23, 1998 1
PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PNO-I-98-023 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is'as initially received without verification or evaluation, and is basically all that is known by Region I staff in King of Prussia, Pennsylvania on this date.
Facilita Pennsylvania Power Ec Light Co.
Susquehanna 2
Allentown,Pennsylvania Dockets: 50-388 Licensee Emer enc Classification Notification of Unusu'al Event Alert Site Area Emergency General Emergency X Not Applicable
Subject:
UNPLANNED REACTOR SHUTDOWN GREATER THAN 72 HOURS On June 22, 1998 at 10:40 a.m. an orderly shut down of Susquehanna Unit 2 was initiated to repair a small leak on a flow element in the. condensate filtration system.
On 'June 20, 1998 the licensee identified minor leakage from a 1/2 inch crack in an end cap weld on a flow element in the condensate system.
The initial leakage rate on June 20, 1998 was measured at approximately 0.125 gallons per minute (gpm).
Over a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period, the crack indication wa~ observed to increase to'pproximately 3/4 inch and the leakage incieased to approximately 0.2 gpm.
Based on the increasing crack size, the licensee initiated the shut down of Unit 2.
The licensee continues to assess the root cause of the failed weld.
The unit expects to be out of service for about 5 days.
The licensee will also complete repairs to a main steam safety relief valve acoustic monitor, which was the subject of a Notice of Enforcement Discretion issued on June 15, 1998.
This shutdown was not required by plant Technical Specifications.
The licensee has issued a press release.
The Commonwealth of Pennsylvania has been informed of the information contained in this PN.
Region I Public Affairs is prepared to respond to media inquiries.
The information in'this notification is current as of 9:30 a.m. on June 23, 1998.
Contact:
RICHMOND, JOHN ANDERSON, CLIFFORD (717)542-2134 (610)337-5227
'F806240033 980628 PDR IS.E PNQ-I-98-023 PDR
~~