ML20196B716
| ML20196B716 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 06/21/1988 |
| From: | Richardson S NRC OFFICE OF SPECIAL PROJECTS |
| To: | |
| References | |
| PNO-OSP-88-011, PNO-OSP-88-11, NUDOCS 8806300354 | |
| Download: ML20196B716 (1) | |
Text
June 21, 1988 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PN0-0SP-88-011 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance.
The information is as initially received without verifi-cation or evaluation, and is basically all that is known by OSP staff on this date.
FACILITY _: Tennessee Valley Authority Licensee Emergency Classification:
Sequoyah Unit 2 Notification of Unusual Event Docket No. 50-328 Alert Soddy Daisy, Tennessee Site Area Emergency General Emergency X Not Applicable
SUBJECT:
SEQUOYAH UNIT 2 RESTART AFTER TRIP ON JUNE 9, 1988 At 10:00 a.m., on June 19, the Director, Office of Special Projects, authorized Sequoyah Unit 2 to return to power following an 10 day outage subsequent to the reactor trip of June 9, 1988.
During the outage, the licensee reduced the outstanding maintenance needed on balance-of-plant equipment and incorporated various administrative changes to improve methods of pla" operation.
The reactor was determined to be critical at 2:49 p.m.,
on June 19.
During the power ascension phase, the reactor power will be liinited to 70% of its design capacity.
The reason for this is to extend unit op2 rating time and to assure sufficient shutdown margin following a reactor trip during the end-of-life fuel cycle.
The plant is currently at approximately 1% reactor power and holding to correct main feedwater pump turbine oscillations.
This PN is being issued for information purposes only and is corrent as of 8:00 a.m. on June 21, 1988.
CONTACT: S. Richardson - 492-3289 DISTRIBUTION 5520:
Mail:
TaTrman Zech - INRC1718/Leadop X75 Comissioner Roberts - INRC1718/Leadop DCS Comissioner Bernthal - INRC1718/Leadop 01A-MNBB-8607 Comissioner Carr - 1NRC1718/Leadop 01 - 3E4-DLewis Comissioner Rogers - 1NRC1718/Leadop OSP SECY - 1NRC1718/Leadop CA - INRC1718/Leadop PA - 1NRC02/Leadop ARM - NRCRM/ Brown Regional Offices A0ED - NRCRMPN Region I - Rl/Leadop
~
Hqs Oper. Office - NRCRMPN Region II - RII/Leadop NRR - INRC1112/Berean Sequoyah Resident Inspector OE - 1NRC0708/ Summers Licensee:
TVA NMSS - 1NRC0506/Leadop Region III - RIII/Leadop 0GC - INRC1516/Leadop Region IV - RIV/Leadop SP - INRC0304/SGindes Region V - RV/Leadop EDO - INRC1718/Leadop DEDRO - INRC1718/Leadop GPA - INRC1718/Leadop gi f
e806300354 800621
-U 00-011 PDR l
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