ML20086C491
| ML20086C491 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 05/14/1974 |
| From: | Betz J Public Service Enterprise Group |
| To: | Knuth D US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20086C489 | List: |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8311280093 | |
| Download: ML20086C491 (2) | |
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John F. Betz Public Service Electric and Gas Company 80 Park Place Newark. N.J. 07101 201/622-7000 Vice-President - Electric Operation May 14, 1974
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U.S. Atomic Energy Commission Directorate of Regulatory Operations 7920 Norfolk Avenue Bethesda, Maryland 20014 Attention of Mr. Donald F. Knuth, Director Gentlemen:
NO. 1 AUXILIARY FEEDWATER STORAGE TANK NO. 1 UNIT l
SALEM NUCLEAR GENERATING STATI0h In compliance with AEC Regulation 100FR50(e), a verbal report was submitted on April 11, 1974 to Region 1, Directorate of Regulatory Operations concerning a crack in a roof plate of No. 1 Auxiliary Feedwater Tank at Salem Nuclear Generating' Station.
Our investigation cf the crack in the roof-plate of No. 1 Auxiliary Feedwater Tank revealed that in the process of removing a construction lug on one plate, the base material was torn.
The construction lugs were welded to the roof plate segments-to facilitate field forming of the roof during construction.
This type of lug was welded to the roof segments only.
To ensure that no other tears were in the-roof plates of'this and five othe r similar tanks, all areas where the lugs were.
welded to the plates were visually inspected and a random sampling of twelve areas, two on each; tank, were dye penetrant inspected.
No other tears were found.
The one crack in the tank roof-plate of No. - l Auxiliary Feedwater Storage Tank was ground out-and repaired.
From our visual inspection program of all locations:where con-struction lugs _ were welded to the roof and from the results of the dye penetrant inspection of twelve random areas,.we are-satisfied that this was an isolated occurrence and that these-tanks ~are structurally sound.
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U.S. Atomic Energy 5-14-74 Commission If you have further questions on this item and its repair, we invite your inspection of the site repair records.
Very truly yours,
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