ML20039F249
| ML20039F249 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 12/29/1981 |
| 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 8201120267 | |
| Download: ML20039F249 (3) | |
Text
_ _ _ _ _ _ _ _
Docket Nos. 50-528/529/530
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50 55(e) Report AT31EEMEA IFUEM@ @F-@JR71tDLuj @@5H%TJT STA.
P.o. BOX 21666 PHOENIX, ARIZONA 85036 December 29, 1981 ANPP-1
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U. S. Nuclear Regulatory Commission Region V RECEIVED m
Creekside Oaks Office Park
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t Truc Attention:
Mr. B. H. Faulkenberry, Chief
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Subject:
Interim Report, Revision 1 - DER 81-25 C
A 50.55(e) Potentially Reportable Deficiency Relating to Bingham-Willamette Auxiliary Feedwater Pumps Seize-up During Maintenance File:
81-019-026 D.4.33.2
Reference:
(A) Telephone Conversation between T. Bishop and G. Duckworth on August 18, 1981 (B) ANPP-18945, dated September 18, 1981 (Interim Report) 4
Dear Sir:
The NRC was notified of a potentially reportable deficiency in Reference (A) and an Interim Report was transmitted by Reference (B). At that time, it was estimated that a Final Report would be available by December 31, 1981.
Due to the extensive investigation and evaluation required, a revised Interim Report is attached.
It is now expected that this information will be finalized by February 18, 1982, at which time a complete report will be submitted.
Very truly yours, 6.4.s
.14 E. E. Van Brunt, Jr.
I APS Vice President Nuclear Projects
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ANPP Project Director l
EEVBJr/GHD:bj l
Enclosure l
cc: See Attached Page 2 03coh 8
81-2l }lo PDR
~U. S.'Nuciser Regulatcry Commidrion Mr.
B.' H.'Frulk;nbarry, Chizf ANPP-19792-CHD/BSK
. December 29, 1981 Page 2 Y
cc:
Richard DeYoung, Director U. S. Nuclear _ Regulatory Commission-Office of' Inspection 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 P
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E INTERIM REPORT, REVISION 1 - DER 81-25' POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)
PVNGS UNITS 1, 2, & 3 I.
Potentiai' Problem Eight (8)'of a total of nine (9) Auxiliary Feedwater Pumps supplied by Bingham-Willamette.were disassembled due to seizure of the rotating assembly.
Storage and maintenance of this equipment was performed by Bechtel' as per Bingham-Willamette Instruction Manual (Log #M021-157-2) and included dry rotation of the pump shafts. Conditions noted include:
a.
Galling of the shaft b.
Rubbing of impeller case rings / throttle bushing c.
Metal filings present All eight pumps were returned to the Bingham-Willamette factory in Portland,. Oregon, and upon disassembly, the binding was found to be caused by galling of the stainless steel center stage piece and stainless steel shaft sleeve.
Equipment Tag Numbers:
1, 2 and 3 - M-AFA-P01 1, 2 and 3 - M-AFB-P01 1, 2 and 3 - M-AFN-P01 IIi_ Approach To and Status of Proposed Resolutions Bingham-Willamette has prepared a new procedure for packing, shipping, -
storage, etc., and has indicated this action will. resolve the condition.
Bechtel Engineering requested that other concerns be answered, parti-
~
cularily for shaft deflection'during future storage and stand-by.
conditions wherein the pumps could again be subjected to galling of
'the shaft. Bechtel has corresponded with Bingham-Willamette regarding these concerns and a test was performed on December 15,16, and 17, 1981.
Bechtel has verified that the test results demonstrate the pump design is satisfactory.
III. Projected Completion of Corrective Action and Submittal of the Final Report The final report will be completed by 2-18-82, and include the test
. procedure and test report.
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