ML19322E244

Interim Deficiency Rept Re Improper Installation of Inboard & Outboard Shaft Fans for Both Auxiliary Feedwater Pump Motors.B Motor Had Been Disassembled for High Bearing Temps During Tests.Motors Removed for Repair of Shaft Fans

ML19322E244
Person / Time
Site:	North Anna
Issue date:	03/19/1980
From:	Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
References
REF-PT21-80-207-000 250, NUDOCS 8003260346
Download: ML19322E244 (2)

Text

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y VrnorNrA ELECTRIC AND POWEM COMPANY e Hrcunsown,VamorazA unuss March 19, 1980 Mr. James P. O'Reilly, Director Serial No. 250 Office of Inspection and Enforcement P0/FHT:baw U. S. Nuclear Regulatory Commission Docket No. 50-339 Region II Permit No. CPPR-78 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

On March 15, 1980, a report was made under the provisions of 10 CFR 50.55(e) concerning the improper installation of the inboard and outboard shaft fans for both auxiliary feedwater pump motors at North Anna Unit 2.

In accordance with the reporting requirements of 10CFR21, the following information is submitted:

A. Name and address of reporting individual:

Mr. E. A. Baum, Executive Manager Licensing and Quality Assurance Virginia Electric and Power Company P. O. Box 26666 Richmond, Virginia 23261 B. Facility, activity, and/or component affected:

North Anna Power Station, Unit 2 Auxiliary Feedwater Pump Motors C. Name of firm constructing the facility or supplying the component, activity or service:

Siemans Allis 4620 Forest Avenue Norwood, Ohio 45212 D. Description of defect, deficiency or failure to comply:

While disassembling the "B" auxiliary feedwater pump motor because of high bearing temperatures detected during motor tests, it was found that the e:taf t fans had been installed improperly. 'Ihe inboard fan was installed in the outboard fan location and the outboard fan was in the inboard location.

This condition was determined by the fan mold numbers and was common to the "A" pump motor as well.

80032603

• c, .

Vinoasta Etrermic awn Powra Coxean to Mr. James P. O'Reilly 2 E. Date of determination of reportability:

Ma rch 14, 1980 F. Similar components, activities, or services:

Similar type motors are installed at North Anna Unit No. I on the auxiliary feed pumps, but it has been determined that the fans are installed correctly.

G. Corrective action which has been, is being or will be taken, the individual responsible and the length of time to complete ,

action:

Both auxiliary feedwater pump motors were removed and transported to an outside electrical equipment company for repair of the shaft fans. One of the motors is expected to be returned to the station on March 19, 1980, with the other motor being returned shortly there-after.

H. Other information:

None Any information not available at this time will be submitted in a follow--

up letter as a 30 day report.

If you have any questions or require additional information, please contact this office.

Very truly yours, 5V- ,

2t'db a ,n C. M. Stallings Vice President-Power Supply and Production Operations cc: Director, Office of Inspection and Enforcement (3) l l

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