ML20039F241
| ML20039F241 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/30/1981 |
| 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, NUDOCS 8201120258 | |
| Download: ML20039F241 (4) | |
Text
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Docket Nos. 50-528/529/930 f
50 55(e) Report
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P,o. Box 21666 PHOENIX, ARIZONA 85036 December 30, 1981.
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U. S. Nuclear Regulatory Commission 8
EI Region v EtEC W ED q9 rg 1450 Maria Lane, Suite 210-p.
Walnut Creek, California 94596-5368 g gggg p..
h EEg T[g$a Attention:
Mr.
B..H.
Faulkenberry, Chief
.Z Reactor Construction and Tct Engineering Support Branch 4
E Subj ect:
Final Report - DER 81-46 A 50.55(e) Reportable Condition Relating to Borg-Warner 8" Valve in Safety Injection System Could Have Failed As-Installed Horizontally Per PVNGS Design File:
81-019-026 D.4.33.2
Reference:
Telephone Conversation between J. Eckhardt and B. Kaplan on December 3, 1981 (DER 81-46)
Dear Sir:
Attached is our final written report of the reportable deficiency under 10CFR50.550e), referenced above.
Very truly yours, W
E. E. Van Brunt, Jr.
APS Vice President Nuclear Projects ANPP Project Director GHD/BSK:bj Attachment cc:
See Page 2 8201120258 811230
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PDR ADOCK 05000528 IbO)
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~ U. S. Nuclear Regulatory Commission B. H. Faulkenberry, Chief ANPP-19800-GHD/BSK t
December 30, 1981-Page'2 cc: -Richard DeYoung, Director U. S. Nuclear Regulatory Commission
.-Office of Inspecton and Enforcement Washington, D.
C.-
20555-J. A. Roedel D. B.'Fasnacht-G. C.~Andognini 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. Patterson R. W. Welcher R. M. Grant D. R. Hawkinson L. E. Vorderbrueggen Ms. Patricia Lee Hourihan 6413 South 26th Street Phoenix, Arizona 85040 I
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.FINALLREPORT - DER 81 a DEFICIENCY EVALUATION 50.55(e)
H ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS Unit;l I.
DESCRIPTION OF DEFICIENCY
~
Borg Warner 8" motor operated valve manufactured prior-to May 1979 was found, during Borg Warner gate guide testing, to experience '
failure during opening or closing if installed between 221/20 and 157 1/20 of vertical. One of these valves-(Tag.No.'MOV-1JS1BUV0672)
' supplied by Combustion Engineering as part of the NSSS is installed on a-horizontal plane in the safety injection system and therefore subject.to failure _as described by the attached Borg Warner Nuclear Valve Division letter. dated 10-20-81.
II.
ANALYSIS OF SAFETY IMPLICATIONS This condition.is evaluated as reportable since if not detected and corrected, the failure of this valve to open would prevent the Containment Spray System from operating.
III.
CORRECTIVE ACTION Borg Warner has coordinated the modification of this valve as described in the attached Borg Warner letter. ' Valves manufactured and shipped after May 1979 had design changes to-preclude recurrence of-this problem.
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Nucleir VIIva Divi: ion
@rm [L Borg.wnner Corporation Attachment to DER 81-46 7500Tyrone Ave Van Nuys C3fornia 91409.T;l:enone:213 7814000 Mading Address: P.O. Box 218s, Van Nuys Cahfornia
- TWX 91o-495-1726 Oct. 20,1981 Combustion Engineering 1000 Prospect Hill Road Windsor, Connecticut 06095 Attn: Mr. Walt Pilipski, Project Engineer Gentlemen; Recent gate guide tests on power operated valves manufactured before January and May 1979 revealed that failure could occur when the valve is installed between 22
- and 157 of vertical. Damage to the body guide rail from the sharp edges on the gate ' guide can cause the valves to jam during opening or closing. Design changes to add a radius were accomplish-ed in January and May 1979 to preclude this situation.
Our records show that we have shipped similar valves to your project. (dentifies the resper.tive project and lists all the valves that have been shipped prior to January and May 1979 that are affected. In order to determine the extent of the corrective action, we need to know if any of the valves listed on the attachment will be installed between 22h and 157@
of vertical. Also of interest to us, is the system in which the listed valves are or will be installed. This information will assist us in deter-mining the necessity of additional notifications to the Nuclear Regulatory Commission.
Transmit all the information to us as soon as possible. If corrective action is necessary, we will rotifyyou ard ask your help to determine the most convenient manner to accomplish this modification.
Sincerely yours, CE
l BORG WARNER CORPORATION 5.g./$1M - ((NI l
Nuclear Valve Division Ahmat i /h./M8' [p C.Absw W.R. Wheaton it.prrrm W
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Chief Engineer /QA Director y, a,m -
So 72 -If* 7 WRW/jeh I. E. 4d"
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M.N. Reilly f,g, 7 rns u
Arizona Power - Combustion Engineering P.O. No. 960-1231 NVD P/N S/N Tag No.
79510 28591 SI-671 28592 SI-672
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