ML19206B263
| ML19206B263 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 07/18/1973 |
| From: | John Miller Metropolitan Edison Co |
| To: | Kruesi F US Atomic Energy Commission (AEC) |
| Shared Package | |
| ML19206B262 | List: |
| References | |
| NUDOCS 7905080226 | |
| Download: ML19206B263 (2) | |
Text
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PCST OFFICE SCX 542 REACING. PENNSYLVANI A 196G3 TELEPHCNE 215 - 92346C1 July 18, 1973 Mr. F. E. Kruesi, Director Diree.torate of Regulatory Operations United States Atomic Energy Co ission Washington, D. C.
20545
Subject:
Three Mile Island Nuclear Station Unit 2 Docket No. 50-320 Service Building Concrete
Dear Mr. Kruesi:
You were notified on June 14, 1973 of a situation which could be considered reportable in accordance with 10 CFR 50.55(e)(1)(1), " Conditions of Construction Permits". This situation relates to concrete place =ents for Three Mile Island Unit 2, Service Building.
Descriction of Incident Between February 23, 1973 and April 12, 1973, seven pours of -
crete (412 yards) were made ar.d treated as Class II concrete in lieu of Class I in the Service 22ilding. These seven placements consiscad of on interior wall, one slab, four curbs and stairaells. During this period, Quality Control personnel did not perform pre-placement or pour inspections; however, in keeping with accepted construction practices, batch plant forms, truck discharge nonitoring records, and concrete cylinder strength tests were executed and are available.
The incident occurred when the QA/QC persor.nel used the PSAR to determine QA/QC requirements for concrete placements in lieu of the Burns and Roe superstructures specification. The PSAR does not identify the Service Building as a Class I structure.
Corrective Action Deviation Report No. 0179 dated June 14, 1973, was issued to docu-ment the incident and to effect corrective acticn. The Deviation Review Board reviewed the existing pre-place =ent and pour inspection check sheets and accepted
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Mr. F. E. Yxuesi July 18, 1973 the concrete placement as being satisfactory.
In addition, both the construc-tion forces and Quality Control persennel have '::cen =ade aiare that QC cover-age is required on the Service Building. The Architect / Engineer is preparing a source docu=ent to be used by QA/QC persennel to identify all cc=ponents and structures requiring QC ccverage for future use.
ry truly yours,./
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<rnw6o-1. G.' hiller Vice President brh cc:Mr. J. P. O'Reilly 0
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