ML20062H839

Interim Deficiency Rept Re Undertorque of Low Pressure Safety Injection & Containment Spray Pump Casing hold-down Bolts.Initially Reported on 820707.Analysis of Condition Continuing.Final Rept Will Be Submitted by 820930

ML20062H839
Person / Time
Site:	Palo Verde
Issue date:	08/05/1982
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
10CFR-050.55E, 10CFR-50.55E, ANPP-21557-GHD, DER-82-35, NUDOCS 8208160181
Download: ML20062H839 (3)

Text

C 8 - Docket Nos. 50-528/529/530 50.55(e) Report

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M ED @OGTIMED367(D M M sTA. 3003 P.o. sox 2:666 - PHOENIX, ARIZONA 350 6 August 5,1982 ANPP-21557-GHDlBSK U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek, California 94596-5368 Attention: Mr. T. W. Bishop, Chief Reactor Construction Projects Branch

Subject:

Interim Report - DER 82-35 A 50.55(e) Potentially Reportable Deficiency Relating to Unit 2 LPSI and Containment Spray Pump Casing Hold-Down Bolts Under-Torqued.

File: 82-019-026 D.4.33.2

Reference:

Telephone Conversation between J. Eckhardt and G. Duckworth on July 7, 1982

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 be finalized by September 30, 1982, at which time a complete report will be submitted.

Very truly yours,

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E. E. Van Brunt, Jr.

APS Vice President Nuclear Projects ANPP Project Director EEVBJr/GHD:db Attachment ec: See Attached Page 2

/Ce 8208160181 820805 /C' PDR ADOCK 05000529 S PDR

U. S. Nuclear Regulatory Commission ANPP-21557-GHD/BSK Attention: Mr. T. W. Bishop, Chief August 5, 1982 cc: Richard DeYoung, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission

• Washington, D. C. 20555 J. A. Roedel D. B. Fasnacht G. C. Andognini 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 G. A. Fiorelli Lynne Bernabei, Esq.

Harmon & Weiss 1725 "I" Street, NW Suite 506 Washington, D. C. 20006 R. L. Greenfield Assistant Attorney General Bataan Memorial Building Santa Fe, New Mexico 87503

e ..

INTERIM REPORT - DER 82-35 POTENTIAL REPORTABLE DEFICIENCY ARIZONA PUBLIC SERVICE COMPANY (APS) l I. POTENTIAL PROBLEM Ingersoll-Rand Instruction Manual specified 4,000 ft. lbs. torque for the Low Pressure Safety Injection (LPSI) and Containment Spray Pumps hold down bolts. During rework of the LPSI "B" Pump (087641) and Containment Spray "B" Pump (S/N 087645) per requirements of NCR NA-080, a hydraulic torque wrench (direct read-out) was utilized to remove the nuts, revealing that the break-away torque was 2,500 ft. lbs. .

Subsequent to this discovery, research revealed that the original torque was applied utilizing a field fabricated wrench, torque wrench and multiplier. During the calibration process, the torque wrench was the only item calibrated. When torque was applied, the multiplier ratio was used to determine the torque applied. This application may not have provided the desired accuracy.

II. APPROACH TO AND STATUS OF PROPOSED RESOLUTION Engineering is performing an analysis of this condition to determine:

(1) If the nut removal torque is an accurate measure of the original tightening torque.

4 (2) If the 2,500 ft. lbs. torque is sufficient to meet the operational requirements of the pump and pump motor.

III. PROJECTED COMPLETION OF CORRECTIVE ACTION AND SUBMITTAL OF THE FINAL REPORT

' Evaluation of this condition and submittal of the Final Report is Forecast to be completed by September 30, 1982.

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