ML19199A527
| ML19199A527 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/17/1978 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Grier B NRC Office of Inspection & Enforcement (IE Region I) |
| References | |
| GQL 466, GQL-0466, NUDOCS 7905030135 | |
| Download: ML19199A527 (2) | |
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METROPOLITAN EDISON COMPANY :vesicim cc ar.wi. pusuc ur:urie3 ccuanric l PCST OFFICE SOX 542 R E A CIN G. PENNSYLV ANI A 19603 TELEPHCNE 215 - 929-2E01 March 17, 1978 G^,.L CL66 Mr. 3. H. Grier, Director U. S. Nuclea-Eegulatcr/ Cc==ission Office of Inspectien i Enfcrcement Eegicn 1 631 *3 ark Avenue King cf P-ussia, Pannsylvania 19hC6
Dear Sir:
'~hree Mile Is' tnd Nuclear Staticn Unit 2 (TMI-2)
Operating license No. OFR-73' Decket No. 50-320 IE Eulletin No. 78-CL dated Februa:7 21, 1978 In respense to ycur IE Sulletin No. 78--Ok regarding enviren ental qualification of safety related ste: =cunted li=it svitches inside pri=a / centainment, the folleving acticus 117e been taken:
1.
Vender drawings vere reviewed and.. was deter =inad that no limit svitches cf the type referenced in IE Pulletin No. 78-Oh are used on any safety related equipment inside primary centain=ent.
2.
Visual in::pecticns of field =cdified valves vere also nade to deter =ine what type of limit switches vere insta ad
'To li=it switches of the
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.a.s sa.fety related equip =ent inside prima f contain=ent.
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3ecause of the thercugh and c=plete spare parts prog a= implemented on this unit, all vender equipment drawings had been previcusly reviewed, and it was dete=ined that h2 NAMCO Medel 02LCCX and nc EA-170-302 Snap leck 14-4 t switches were installed at this unit. Hevever, ncne of these svitches a e installed en sa'ety related equipment incide priza / contain=ent.
3ased en the above investigation, it has been dete min =d no NA"C0 Model D2LCCX cr EA-170-302 Snap Lcck limit svitches are utilizei cr plan to be utilized en any safety related valves er equipment insida 3 y ~ ~ - ' ' - en t.
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- 3. M. Grier, Director
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Dr. Irrst VClSenau, Director Cffice of Inspection and Inforcement U. S. Nuclear Regulatory Cc==issien
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