ML20040B406
| ML20040B406 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 01/05/1982 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Faulkenberry B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, ANPP-19817-GHD, ANPP-19917-GHD, DER-81-48, NUDOCS 8201260018 | |
| Download: ML20040B406 (3) | |
Text
Docket Nos. 50-528/529/530 50.55'.c) P.eport i
.N EMCMMim ( kf) 1PDiMLHC s;DitIYdnas D1DT1EPATRY 3003
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P.o. Bo x M6f,6 PHOENIX, ARIZONA 85036 sTA.
l January 5, 1982 ANPP-19817-GHD/PSK
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U. S. Nuclear Regulatory Conutission x'y' Region V A'
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Creekside Oaks Office Park 7
1450 Mari.t Lane - Suite 210 Falnut Creek, California 94596-5368 Attent1.on:
Mr. B. H. Faulkanberrv Reactor Construction and Engineering Support Branch
Subject:
Final P.cport - DER 81-48
/ ~0.55(e) Reportable Condition Relating to a Defective Cylinder Head on Unit 2 Diesel Generator by Cooper Fnergy Services File: 82-019-026 D.4.33.2
Reference:
Telephone Conversation between J. Eckhardt and B. Kaplan on December 15,19t,1 Dcar Sir:
Attached, is our final writ. ten report of the reportable deficiency, under 10CFR50.55(e), referenced above.
Very truly yours 7 9 T. cac! and &
E. E. Van Brunt, Jr.
APS Vice Presidet.t Nuclet.r Projects ANPP Project Director EEVBJr/GHD:ske Attachment cc: See Attached Page 2
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I F~ 37 8201260018 820105 PDR ADOCK 05000529 WR t
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I U. S. Nuclear Regulatory Commission Attention:
Mr. B. H. Faulkenberry, Chief ANPP-19817-GHD/BSK January 5, 1982 Page 2 l
cc:
Richacd DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.
20555 i
J. A. Roedel D. B. Fast,acht G. C. Ar.dognini F. W. Hartley J. M. Allen A. C. Rogers B. S. Kaplan W. E. Ide J. Vorees J. A. Brand A. C. Gehr W. J. Stubblefield W. G. Bingham R. L. Pattersoit R. W. Welcher R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen Ms. Patricia Lee Hourihan 6413 South 26th Street Phoenix, Arizona 85040 t
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FINAL REPORT - DER 81-48 DEFICIENCY EVALUATION 50.55(e)
ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNIT 2 l
I.
Description of Deficiency The defect exists only in the #1 cylinder head of one i
diesel generator (2-M-DCA-Il01) furnished by Cooper I
Energy Services for PVNGS Unit 2.
The 13/16" drilled hole where the fuel nozzle tip emerges through the head was drilled oversize during the process of manu-facturing. This hole was repaired by Dalic copper l
plating the hole to size.
Susquehanna Steam Electric l
Station tests of a similarly repaired unit discloaed that this plating can fail due to the latte difference between the coefficient of expansion cf the copper i
plating and the parent metal, and the large temperature fluctuations that occur in this part of the head.
II.
Analysis of Safety Implication l
The condition is evaluated as a significant safety hazard and, therefore, is Reportable since a failure f
in this area of the head could cause the fuel injection nozzle to be blown out of the cylinder head and a top-side engine fire could result.
i III.
Corrective Action Cooper Energy Services has notified Bechtel that the j
defective head will be replaced prior to start-up.
The modificat taa will be accomplished /ta NCR MG-991.
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