ML20039C331

Interim Deficiency Rept DER 81-42 Re Repair Grinding on Unit 2 Reactor Coolant Pump Bearing Housing Disclosed Sand Holes Extending Below 75-inch Depth Allowed,Initially Reported 811112.Evaluation & Final Rept Expected by 820129

ML20039C331
Person / Time
Site:	Palo Verde
Issue date:	12/11/1981
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, ANPP-19676-GHD, NUDOCS 8112290235
Download: ML20039C331 (3)

Text

F Docket Nos. 50-528/529/530 f

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P.O. Box 2166G PHOEMX, AmZoN A 85036 December 11, 1981 ANPP-19676-GHD/BSK U. S. Nuclear Regulatory Commission 9

Region V Creekside Oaks Office Park RECEIVED 1450 Maria Lane - Suite 210

.g Walnut Creek, California 94596-5368 T

DEC2 8 2 >

Attention:

Mr. B. H. Faulkenberry, Chief F samenspetamens [p Reactor Construction and 8EE,7 M Engineering Support Branch 4

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Subject:

Interim Report - DER 81-42 A 50.55(e) Potentially Reportable Deficiency Relating to Unit 2 Reactor Coolant Pump Bearing Housing Repair Grinding Disciosed Sand Holes Extending Below.75" Depth Allowed File: 81-019-026 D.4.33.2

Reference:

Telephone Conv(rsation between J. Eckhardt and G. Duckworth on November 12, 1981

Dear Sir:

The NRC was notified of the potentially reportable deficiency in the referenced telephone conversation. At that time, it was estimated that 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 be finalized by January 29, 1982, at which time a complete report will be submitted.

Very truly _ours j

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E. E. Van Brunt, Jr.

APS Vice President Nuclear

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U. S. Nuclear Regulatory Commission Mr. B. H. Faulkenberry, Chief ANPP-19676-GHD/BSK December 11, 1981 Page 2 cc:

Victor Stello, Jr., 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 NW. Patricia Lee Hourihan 6413 South 26th Street Phoenix, Arizona 85040 Mr. Charles Ferguson Combustion Engineering 1000 Prospect Hill Road Windsor, Connecticut 06095

. p' INTERIM REPORT - DER 81-42 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNIT 2 1.

Potential Problem During a Bechtel repair operation to the Reactor Coolant Pump No. lA supplied by Combustion Engineering, imper-fections (sand holes) were found in thrust bearing housing 8000-400-001. Repair attempt by grinding to remove sand holes disclosed imperfections extended below.750" depth.

II.

Approach To and Status Of Proposed Resolutions Bechtel has requested assistance from Combustion Engineering in evaluating and dispositioning this item.

III.

Projected Completion of Corrective Action and Submittal of the Final Report The evaluation and final report are forecast to be completed by January 29, 1982.

.