ML19341D155
| ML19341D155 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 02/17/1981 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 8103050015 | |
| Download: ML19341D155 (1) | |
Text
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se uru UNITED STATES o
~4 NUCLEAR REGULATORY COMMISSION n
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REGION 11 101 MARlETTA sT., N.W., SUITE 3100 ej ATLANTA, GEORGIA 30303 n
FEB 171981 In Reply Refer To:
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Tennessee Valley Authority Id h
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ATTN:
H. G. Parris Manager of Power
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\\0 500A Chestnut Street Tower II 4
Chattanooga, TN 37401 Gentlemen:
The enclosed IE Bulletin No. 80-17, Supplement 5, is forwarded to inform you of actions that are no longer required. A written response to this supplement is not required.
If you desire additional information regarding this matter, please contact this office.
j Sincerely, g
James P. O'Reilly Director
Enclosures:
1.
+
Supplement 5
+
2.
List of Recently Issued IE Bulletins cc w/ encl:
H. L. Abercrombie, Plant Superintendent R. E. Rogers, Project Engineer H. N. Culver, Chief, Nuclear Safety Review Staff H. J. Green, Division Director 31830500J5
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SSINS No.: 6820
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Accessica No.:
801104259 IEB 80-17, Supp. 5 UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C.
20555 February 13, 1981 i
IE BULLETIN NO. 80-17, SUPPLEMENT 5: FAILURE OF CONTROL RODS TO INSERT DURING A SCRAM AT A BWR
'a Description of Circumstances:
On July 3, 1980, the NRC issued IE Bulletin.No. 80-17, that required actions to be taken by licensees of all operating GE BWRs. Among the actions required, Item 6(a) required a prompt notification report by telephone to the appropriate,
,7 Regional Office followed by a telecopy or other written submittal. These reports were required in the event that any of the systems (HPCI, RCIC, SLCS, RPT, RHR/yool cooling, and main steam bypass) were found to be less than fully operable.
These reports have served the purpose of notifying NRC of cases of potential reduction in operability of systems important to the mitigation of consequences of an anticipated i' ansient without scram (ATWS) evert. These reports are r
no longer necessary since improvements have been accomplished to increase the reliability of control rod scram.
Actions No Longer Necessary...by-Licensees :
Further reporting is not required in response to Item 6(a) of IE Bulletin No. 80-17.
This doen not change the reporting requirements set forth in your license technical specifications.
No written response to IE Bulletin 80-17, Supplement 5, is required.
I f-you have any questions,regarding this matter, please contact the appropriate i
NRC Regional Office.
Attachment:
Recently issued IE Bulletins
f
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Attachment
.j IEB 80-17, Supp. 5 February 13, 1981 RECENTLY ISSUED IE BULLETINS Bulletin No.
Subject-Date Issued Issued To 81-01 Surveillance of 1/27/81 All power reactor Mechanical Snubbers facilities with an OL
& to specified facilities with CP 80-25
_ Operating Problems with 12/19/80 All BWR_fa,cilities.
Target Rock Safety-Relief with an OL' & specified.
Valves at BWRs near term OL BWR facilities & all BWRs with a CP
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Supplement 4 Failure of Control Rods 12/18/80 To specified BWRs-to 80-17 to Insert'During a Scram with an OL & All at a BWR BWRs with a-CP 80-24 Prevention of Damage 11/21/80 All power reactor Due to Water. Leakage facilities with an Inside Containment.
OL or CP (October 17, 1980 Indian Point 2 Event)
.80-23 Failures of So'lenoid 11/14/80 All power reactor -.
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Valves Manufactured by facilities with
< Valcor Engineering OL or CP Corporation 80-22 Automation Indust ries, 9/11/80 All radiography Model 200-520-008 Scaled-licensees t
Source Connectors
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80-21 Valve yokes supplied by 11/6/80 All light water Malcolm Foundry Company, Inc.
reactor facilities with OLs or cps Supplement 3 Environmental Qualification 10/24/80 All power reactor to 79-01B of Class IE Equipment facilities with an OL Supplement 2 Environmental Qualification 9/30/80 All power reactor to'79-01B of Class IE Equipment facilities with an OL OL = Operating License CP = Construction Permit l
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