ML20079S177

Final Deficiency Rept Item 132 Re Removal of Expansion Anchors After Insp.Initially Reported on 830601.Hanger Base Plate in Fuel Handling Bldg Reinstalled,Torqued & Accepted by Const Insp.Insp Procedure TP-39,Rev 5 Revised

ML20079S177
Person / Time
Site:	Harris
Issue date:	07/01/1983
From:	Parsons R CAROLINA POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
CON-NRC-93 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8307110338
Download: ML20079S177 (4)

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USNRC prop .:

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lA 83adc(fga fowg,Migmpany P. O. Box 101, New Hill, N. C. 27562 July 1, 1983 Mr. James P. O'Reilly NRC-93 United States Nuclear Regulatory Commission g- pp Region II 101 Marietta Street, Northwest (Suite 2900)

Atlanta, Georgia 30303 CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT 1986 900,000 KW - UNITS 1 & 2 REMOVAL OF EXPANSION ANCHORS AFTER INSPECTION, ITEM 132

Dear Mr. O'Reilly:

Attached is the final report on the subject item which was deemed reportable per the provisions of 1,0CFR50.55(e) on June 1,1983. With this report, Carolina Power and Light Company considers this matter closed.

If you have any questions regarding this matter, please do not hesitate to contact me.

Yours very truly, y c'^==L R. M. Parsons Project General Manager Shearon Harris Nuclear Power Plant RMP/sh Attachment cc: Messrs. G. Maxwell /R. Prevatte (NRC-SHNPP)

Mr. V. Stello (NRC)

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12-37 8307110338 830701

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j CAROLINA POWER & LIGHT COMPANY SHEARON HARRIS NUCLEAR POWER PLANT UNITS 1 AND 2 FINAL REPORT l

REMOVAL OF EXPANSION ANCHORS AFTER INSPECIION ITEM 132 JULY 1, 1983 REPORTABLE UNDER 10CFR50.55(c)

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SUBJECT:

Shearon Harris-Nuclear Power Plant Unit No. 1 10CFR50.55(e) reportable deficiency concerning a seismic hanger base plate and expansion anchors being removed after inspection without prior notification to Construction Inspection.

ITEM: DR-C-1860: The hanger base plate installed under anchor placement 1FH261-014 was removed, after installation and inspection, without prior notifi-cation to Construction Inspection as required by procedure.

P SUPPLIED BY: This is not a supplier-related deficiency. The plate was field fabricated and installed.

NATURE OF DEFICIENCY: This plate was installed using drilled-in expansion anchors which were torqued to the required tension pre-load, inspected and accepted. The plate was subsequently removed by craftsmen to facilitate attachment of the seismic hanger, without notification to Construction Inspection as required by procedure to ensure reinspection after reinstallation.

DATE PROBLEM OCCURRED: This problem was detected on April 18, 1983.

DATE PROBLEM REPORTED: On May 3, 1983, Mr. M. M. Pugh notified Mr. A. Hardin, NRC, that this item was potentially reportable per provisions of 10CFR50.55(e). On June 1, 1983, Mr.

K. V. Hate' notified Mr. A. Hardin that this item was reportable.

SCOPE OF PROBLEM: This problem is limited to a single hanger base plate in the Fuel Handling Building.

SAFETY IMPLICATION: The base plate supports a pipe hanger which, in turn, supports the chilled water spray pipe. Had the plate been incorrectly reinstalled and failed as a result, the remaining pipe hangers would not have been adequate to support the pipe.

REASON DEFICIENCY IS REPORTABLE: Engineering evaluation indicates the pipe would not have been adequately supported by remaining hangers had this one failed.

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CORRECTIVE ACTION: The hanger base plate has been reinstalled and retorqued and accepted by Construction Inspection.

PREVENTATIVE MEASURE: The inspection procedure TP-39, Rev. 5 (currently in the approval cycle) includes a requirement for an inspection indicator to help ensure that a reoccurrence will be easily detectable.

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