ML19224A515
| ML19224A515 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/08/1979 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Herbein J METROPOLITAN EDISON CO. |
| References | |
| NUDOCS 7902280470 | |
| Download: ML19224A515 (2) | |
Text
gaarGo UNITED STATES NUCLEAR REGULATORY COMMISslON
- f. ',)' t 't [k REGION I A -
- g 631 PARK AVENUE k
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KING OF PRUSSI A, PENNSY LV ANI A 19406 Docket Nos. 50-289 FE3
- U7Y 50-320 Metropolitan Edison Company ATTN: Mr. J. G. Herbein Vice President - Generation P. O. Box 542 Reading, Per.nsylvania 19640 Gentlemen:
Enclosed is IE Bulletin 79-01 which requires action by you with regard to your power reactor facility (ies) with an operating license, except for the 11 Systematic Evaluation Program-(SEP) plants which are listed in Enclosure 3.
This Bulletin is also being sent for information to the 11 SEP plants and all power reactor facilities with a construction permit.
No action or written response is required for these two categories of facilities.
Should you have questions regarding this Bulletin or the actions required of you, please contact this office.
Sincerely,
%g
&&Nw h Boyce H. Grier Director
Enclosures:
1.
List of IE Bulletins Issued in the past 12 months 3.
List of SEP Plants (11)
"Pi 184 m#fnsd,eT&4 77op364 70
Metropolitan Edison Company 2
cc w/encls:
E. G. Wallace, Licensing Manager J. J. Barton, Project Manager R. C. Arnold, Vice President - Generation L. L. Lawyer, Manager - Generation Operations - Nuclear G. P. Miller, Superintendent J. L. Seelinger, Unit 1 Superintendent J. B. Logan, Unit 2 Superintendent G. A. Kunder, Unit 2 Superintendent - Technical Support I. R. Finfrock, Jr.
Mr. R. Conrad G. F. Trowbridge, Esquire Miss Mary V. Southard, Chairman, Citizens for a Safe Environment
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UNITED STATES NUCLEAR REGULATORY COMMISSI0tl 0FFICE OF INSPECTI0tl AND EtlFORCEMEtiT WASHINGTON, D.C.
20555 IE Bulletin No. 79-01 Date:
February 8,1979 Page 1 of 3 ENVIRONMEtlTAL QUALIFICATI0tl 0F CLASS IE EQUIPMENT Description of Circumstances:
The intent of IE Circu;ar 78-08 was to highlight to all licensees important lessons learned from envirormental qualification deficiencies reported by individual licensees.
In this regard, licensees were requested to examine installed safety-related electrical equipment and determine that proper documentation existed which provided assurance that this equipment would function under postulated accident conditions. The scope of IE Circular 78-08 was much broader than other previously issued Bulletins and Circulars (such as IEB 78-04 and IEB 78-02) which addressed specific component failures.
The intent of this Bulletin is to raise the threshold of IE Circular 78-08 to the level of a Bulletin; i.e., action requiring a licensee response.
Inspections conducted to date by the NRC of licensees' activities in response to IE Circular 78-08 have identified one component which licensees have found to be unqualified for service within the LOCA environment.
Specificially, unqualified stem mounted limit switches (SMLS), other than those identified in previously issued IE Bulletin 78-04, were found to be installed on safety-related valves inside containment at both Duane Arnold and Quad Cities 1 and 2 Nuclear Canerating Stations.
The unqualified switches are identified as fMMC0 Models SL2-C-ll, S3CML, SAI-31, SAI-32, D1200j, EA-700 and EA-770 switches.
According to the manufacturer, these switches are designed only for general purpose applications and are not co'nsidered suitable devices for service in the LOCA environment.
Consequently, switches are being replaced at the above power plants with qualified components.
Also, NRC inspection of component qualification has identified equipment which does not have documentation indicating it is qualified for the LOCA environment.
The inspections have_ @ h + N + " ' + " ' " c r n L _ m._,
re-review and resolution of problem a attention from all licensees whir' th DUPLICATE DOCUMENT of the protracted schedule for comple requesting the power reactor faciliti Entire document previously entered expedite completion of their re-revie into system under:
IE Circular 78-08 dated May 31, 1978.
'/902 l1 O !L l5 l$P 7yyy3g9g35 No. of pages:_
,