ML20127L913

Potential Significant Deficiency Rept SD-78 Re Colt-Pielstick Emergency Diesel Generator Fuel Oil Injection Pump Failures.Initially Reported on 850401.Caused by Accumulation of Foreign Matter.Next Rept by 850613

ML20127L913
Person / Time
Site:	Millstone
Issue date:	05/01/1985
From:	Opeka J NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
F0733A, F733A, SD-78, NUDOCS 8505230119
Download: ML20127L913 (1)

Text

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. . General Offices

• Seiden Street, Berlin, Connecticut 9 ""

H'AR FORD, CONNECTICUT 06141-0270 L < a L*J'~.y ,* ," _" _ (203) 666-6911 May 1,1985 Docket No. 50-423 F0733A Dr. Thomas E. Murley Regional Administrator U.S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 -

Dear Dr. Murley:

Millstone Nuclear Power Station, Unit No. 3 Reporting of Potential Significant Deficiencies in Accordance with 10CFR50.55(e):

Emergency Diesel Generator Fuel Oil Iniection Pump Failures (SD-78)

In an April 1,1985 telephone conversation between your Mr. T. Rebelowski and l our Mr. B. Kaufman, Northeast Nuclear Energy Company (NNECO) reported a potential significant deficiency in the construction of Millstone Unit No. 3 in accordance with 10CFR50.55(e).

The potential significant deficiency involves multiple failures of the fuel oil injection pumps on both emergency diesel generators supplied by Colt-Pielstick.

The failures appear to be due to the accumulation of foreign matter within the fuel oil header, jumpers, or the fuel oil day tanks.

We are still investigating the cause of these failures and the necessary corrective actions. As such, are not able to provide a final report at this time.

We will provide an update on this matter by June 13,1985.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY b U[Y~

3. F.'Opfka -

Senior Vice President cc: Mr. 3. M. Taylor, Director Divis!bn of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, D. C. 20555 ff 8

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