ML20092A849
| ML20092A849 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 06/06/1984 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| ANPP-29681-TDS, DER-84-31, EFR-840606, NUDOCS 8406190483 | |
| Download: ML20092A849 (3) | |
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Arizona Public Service Company June 6,-1984 ANPP-29681-TDS/TRB U. S. Nuclear Regulatory Commiasion Region V Creekside Oaks Office Park
.1450 Maria Lane - Suite 210 Walnut Creek, CA 94596-5368 Attention: Mr. T. W. Bishop,-Director Division of Resident Reactor. Projects and Engineering Programs
Subject:
Interim Report - DER 84-31 A 50.55(e) Potentially Reportat'le Deficiency Relating to Unsealed Piping Penetrations In The.MSSS File: 84-019-026; D.4.33.2
Reference:
Telephone Conversation.between P. Narbut and T. Bradish on May 17, 1984
Dear Sir:
The NRC was notified of ~a potentially reportable deficiency in the referenced telephone conversation. 'At that time,-it was estimated that a determination of reportability.would be made within thirty (30) days.
Due to the extensive-investigation and evaluation required, an Interim Report is attached. It is now expected ;that this information will.bel finalized by August 17, 1984, at which time 'a complete report will1be submitted.
-Very.truly',yours' L
f OLUL.
MLL E..E.' Van?BruntUJr.,
APS Vice6Presidenti 2
Nuclear Production.
- ANPP-Projetet; Director EEVB/TRBtru.
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Mr.'T. W. Bishop DER 84-31 Page Two L
>cc:
Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington,-D. C. 20555 T. G. Wocds, Jr.
D. B. Karner W. E. Ide
. D. B. Easnacht A. C. Rogers L. A. Souza B. S. Kaplan D. E. Fowler T. D. Shriver C. N.'Russo J. Vorees J. R. Bynum J. M.' Allen J. A. Brand-
- c. C.tGehr W.'J.
Stubblefield W. G. Bingham R. L. Patterson R.' W.-Welcher H..D.
Foster D. R. Hawkinson' L. E. Vorderbrueggen G. A. Fiore111 S. R. Frost J. Self D. Canady Records Center-Institute of Nuclear Power Operations.
1100 circle 75 Parkway,l Suite.1500 Atlanta.,GA 30339; 1.
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INTERIM REPORT - DER 84-31 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 1, 2; & 3 I. Potential' Problem The Main Steam Support Structure (Systen ZM) Detailed Design Criteria, paragraph 1.5.2, states: "The portion of the structure below elevation 100 feet - 0 inches shall be designed to be watertight both from external sources of water and internal sources above elevation 100 feet - 0 inches." Contrary to this criteria, floor penetrations for piping in the Main Steam Support Structure (MSSS) floor slab at elevation 100 feet are not sealed. The penetration seal schedule for the IISSS, drawing 13-A-ZYD-175, Rev.1, specifically indicates "no seal required" for penetrations 1 through 13 which are deteiled on the MSSS floor insert and penetration drawing 13-A-ZYD-485, Rev. O.
II.
Approach To add Status of Proposed Resolution Bechtel Engineering is currently studying this problem to determine reportability and technical justification-for corrective action.
III. Projected Completi5r. 5f'CorrectiYe Acti5n and' Submittal of' the Final
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Report Evaluation of this condition and submittal of the Final Report is forecast to be completed by August 17, 1984.
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