ML20024D106

Updated LER 82-004/01T-1:on 820129,while Performing Visual Insp of Reactor Coolant Pump a Seal Package,Rcpb Leakage Discovered from Crack in Seal Weld.Caused by Installation Error.Seal Replaced & Procedures revised.W/830726 Ltr

ML20024D106
Person / Time
Site:	Crystal River
Issue date:	07/26/1983
From:	Charles Brown, Westafer G FLORIDA POWER CORP.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
3F-0783-22, 3F-783-22, LER-82-004-01T, LER-82-4-1T, NUDOCS 8308030165
Download: ML20024D106 (3)

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[Es IAt 1100 while performing a visual inspection of RCP-A seal package, pres- I r.u s. tsere boundary leakage was discovered from a crack in the weld between the i o4 Ithird stage cavity and a vent pipe on the seal. This created an event con- I g;En I trary to T.S. 3.4.6.2(a) . The plant was in Mode 3 at the time of discovery.1

[EU lThe plant was cooled down and Mode 5 was entered at 0255 on January 30, I o i1982. There was no effect upon the health or safety of the general public. l This is the first occurrence concerning RCP-A and the third event reported r.us a lunder this Specification. i

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su r.i lThd crack in the seal was caused by an installation error. Apparent 1v, the I i i I seal had been damaged during installation mishandling. The plant was cooledi mura i down to Mode 5 and the seal package replaced with a rebuilt spare seal pack-l l age. The procedures controlling installation of the seal packages were i revised to stress the importance of properly handling the package during

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SUPPLEMENTARY INFORMATION REPORT NO: 30-302/82-004/01T-1 FACILITY: Crystal River Unit #3 REPORT DATE: .Atly 26,1983 OCCURRENCE DATE: January 29,1982 IDENTIFICATION OF OCCURRENCE:

Reactor coolant pressure boundary leakage was discovered on Reactor coolant pump "A" (RCP-A) seal package. Technical Specification 3.4.6.2.a requires no pressure boundary leakage.

CONDITIONS PRIOR TO OCCURRENCE:

MODE 3 (HOT STANDBY).

DESCRIPTION OF OCCURRENCE:

While performing a visual inspection of RCP-A seal package, a crack in the weld between the third stage cavity and a vent pipe on the seal was discovered. The plant was cooled down to Mode 5 from Mode 3 and repair was initiated.

DESIGNATION OF APPARENT CAUSE:

The weld crack was apparently a result of mishandling the seal during installation.

ANALYSIS OF OCCURRENCE:

There was no effect upon the health or safety of the general public.

CORRECTIVE ACTION:

i l The seal package for RCP-A was replaced with a rebuilt spare seal package. Procedures 'vhich control the installation of the seal packages have been revised to stress the importance of

! proper handling during seal ir.sta!htion.

FAILURE DATA:

This is the first occurrence concerning RCP-A and this is the third event reported under this Specification.

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.P.o. . .w. .e. . .r July 26,1983 3F-0783-22 Mr. James P. O'Reilly Regional Administrator, Region 11 Office of Inspection & Enforcement U.S. Nuclear Regulatory Commission 101 Marietta Street N.W., Suite 2900 Atlanta, GA 30303

Subject:

Crystal River Unit 3 Docket No. 50-302 Operating License No. DPR-72 Licensee Event Report No.82-004

Dear Mr. O'Reilly:

Enclosed is Licensee Event Report No.82-004 and the attached supplementary information sheet, which are submitted in accordance with Technical Specification 6.9.1.8.i. This report supplies supplementary information to our initial report dated February 12,1982.

Should there be any questions, please contact this office.

Sincerely, y G. R. Westafer Manager Nuclear Licensing and Fuel Management AEF:mm Enclosure cc: Document Control Desk U. S. Nuclear Regulatory Commission '

Washington, D.C. 20555 .

77fJ A1

/I General Office 3201 nurty-fourth street soutn . P O. Slor 14042. St. Petersburg. Florida 33733 e 813-866-5151 i .