ML20042B799

Final Deficiency Rept Re Problem W/Breaker Position Switch Operator Mechanisms.Cause of Interference Between Operator Guide & Breaker Arc Chute Unknown.Switch Operator Guide Realigned W/Breakers

ML20042B799
Person / Time
Site:	Waterford
Issue date:	03/18/1982
From:	Mclendon G LOUISIANA POWER & LIGHT CO.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, W3K-82-0157, W3K-82-157, NUDOCS 8203260161
Download: ML20042B799 (5)

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LOUISIANA f 242 ouAnoNoE S1ncer POWE R & LiG H T/ P o oox 6008

• NEW OnLEANS LoulSIANA 70174 * (504) 366 2345 N[rYrbbsY[O March 18, 1982 G D McLENDON .

I Senior Vice Prestent W3K-82-0157 N

Q-3-A35.07 .f /

S Mr. John T. Collins, Regional Administrator, Region IV  ?/ g$8 U. S. Nuclear Regulatory Commission C g,y 611 Ryan Plaza Drive, Suite 1000 -

f .-

Arlington, Texas 76012 Y.f @L (3 9 .~. 5.

C -..

SUBJECT:

Waterford SES Unit No. 3 g Docket No. 50-382 )6 Final Report of Significant Construction Deficiency No. 2 g "Switchgear Breaker Position Switch Operator Defect" co

Reference:

LP6L Letter W3K-82-0048 to USNRC dated 1/29/82

Dear Mr. Collins:

In accordance with the requirements of 10CFR50.55(e), we are hereby l providing two copies of the Final Report of Significant Construction Deficiency No. 27, "Switchgear Breaker Position Switch Operator Defect."

l If you have any questions, please advise.

Very truly yours, GDMcL/LLB/grf l cc: 1) Director l Office of Inspection 6 Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 (with 15 copies of report) r l

2) Director Office of Management '

lf

( hi Information and Program Control -

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U. S. Nuclear Regulatory Commission r

)

Washington, D. C. 20555 /

(with I copy of report) $g 8203260161 820318 -

PDR ADOCK 05000392 I S PDR J

V LOUISIANA POWER & LIGHT COMPANY WATERFORD SES UNIT No. 3 Final Report of Significant Construction Deficiency No. 27 Switchgear Breaker Position Switch Operator Defect Raviewed by / / [3 R. J. Mper - Site Manager Date

/ E Reviewed by J / L. Wil s Pro} ct Superintendent bate Raviewed by 1 / /ll/ 8 #b J. Hart - Project / Licensing (Agineer 'Date R2 viewed by Y J"/Z-72 W. Yae'ger' ' Sr. Resident Engineer Date Revieued by /] m w / fms 5 Z 8&

J. Gutierrez - Q/A. Site Supervisor # ' Da'te

/

March 12, 1982

/

F FINAL REPORT SIGNIFICANT CONSTRUCTION DEFlCIENCY NO. 27 "Switchgear Breaker Position Switch Operator Defect" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e) (3). It describes a deficiency in the 4.16 KV Class lE Switchgear as modified and installed and is related to Significant Construction Deficiency Report No. 11 titled "Switchgear Breaker Posi-tion Switch Operator Defect."

DESCRIPTION On March 13, 1981, Louisiana Power & Light Company's Startup Organization advised Ebasco Services, Inc., of a problem with the as-installed breaker position switch operator mechanisms. This deficiency is documented on Nonconformance Report No.

W 3-2574.

The extent of the deficiency is as follows: The breaker position switch operators have been modified in accordance with Significant Construction Deficiency No. 11 and installed under General Electric's supervision. During subsequent installa-tion of the breakers, an interference was detected between the operator guide and the breaker are chute covers which prevents breaker insertion in the gear. This deficiency involved thirty-three (33) breaker position switch operators.

SAFETY IMPLICATIONS The as-installed mcdified breaker position switch operators with the added guides prevent the breakers from being inserted onto their respective location. There-fore, this deficiency if left uncorrected could result in an inadequate installa-tion and is considered to be a reportabic item under 10CFR50.55(e).

CORRECTIVE ACTION Corrective action involved sliding the position switch operator guides horizontally to align with the 6.9 and 4.16 KV breakers in accordance with General Electric Drawing No. 0269AZ835.

This work has been completed by LP&L under the start-up system pre-op testing program with General Electric providing technical direction.

Fourteen (14) of the breaker position switch operators affected are located in switchgear 3B3-S, another fourteen (14) are in 3A3-S, and another five (5) in 3AB3-S.

All thirty-three (33) safety-related breaker position switch operators affected have been adjusted.

J

LOUISIANA POWER & LIGHT COMPANY WATERFORD SES UNIT NO. 3 Final Report of Significant Construction Deficiency No. 27 Switchgear Breaker Position Switch Operator Defect Reviewed by /2 / [3 R. J. pser - Site Manager Datie Reviewed by O!/A E J / L'. Wil s Pro et Superintendent Date Revteued by , y l l}// 8 h2-J. Ha'rt - Project / Licensing fMgineer tate Reviewed by J -/7.- 77, W. Yae'ger' ' 'Sr. Resident Engineer Date Revieued by /] & f fms y 5 Zf87.,

J. Gutierrez - A. Site Supervisor g ' Da'te March 12, 1982

FINAL REPORT SIGNIFICANT CONSTRUCTION DEFICIENCY NO. 27 "Switchgear Breaker Position Switch Operator Defect" INTRODUCTION This report is submitted pursuant to 10CFR50.55(e) (3). It describes a deficiency in the 4.16 KV Class lE Switchgear as modified and installed and is related to Significant Construction Deficiency Report No.11 titled "Switchgear Breaker Posi-tion Switch Operator Defect."

DESCRIPTION On March 13, 1981, Louisiana Power & Light Company's Startup Organization advised Ebasco Services, Inc., of a problem with the as-installed breaker position switch operator mechanisms. This deficiency is documented on Nonconformance Report No.

W3-2574.

The extent of the deficiency is as follows: The breaker position switch operators have been modified in accordance with Significant Construction Deficiency No. 11 and installed under General Electric's supervision. During subsequent installa-tion of the breakers, an interference was detected between the operator guide and the breaker are chute covers which prevents breaker insertion in the gear. This deficiency involved thirty-three (33) breaker position switch operators.

SAFETY IMPLICATIONS The as-installed modified breaker position switch operators with the added guides prevent the breakers from being inserted onto their respective location. There-fore, this deficiency if left uncorrected could result in an inadequate installa-tion and is considered to be a reportable item under 10CFR50.55(e).

CORRECTIVE ACTION Corrective action involved sliding the position switch operator guides horizontally to align with the 6.9 and 4.16 KV breakers in accordance with General Electric Drawing No. 0269AZ835.

l This work has been completed by LP&L under the start-up system pre-op testing

program with General Electric providing technical direction.

I Fourteen (14) of the breaker position switch operators affected are located in switchgear 3B3-S, another fourteen (14) are in 3A3-S, and another five (5) in 3A33-S.

All thirty-three (33) safety-related breaker position switch operators affected have been adjusted.

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