ML20093D616

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Responds to IE Bulletin 84-02, Failures of GE Type Hfa Relays in Use in Class IE Safety Sys. Four HFA-51 Relays in Diesel Generator Control Panel Will Be Replaced Prior to Fuel Load
ML20093D616
Person / Time
Site: Harris 
Issue date: 07/13/1984
From: Cutter A
CAROLINA POWER & LIGHT CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-84-02, IEB-84-2, NLS-84-321, NUDOCS 8407170097
Download: ML20093D616 (1)


Text

Cp&L Carolina Power & Light Company SERIAL: NLS-84-321 JUL 131984 Mr. James P. O'Reilly, Regional Administrator United States Nuclear Regulatory Commission 101 Marietta Street, NW - Suite 2900 Atlanta, GA 30303 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NO. 1 - DOCKET No. 50-400 IE BULLETIN NO. 84-02

Dear Mr O'Reilly:

Carolina Power & Light Company (CP&L) has reviewed IE Bulletin No. 84-02, " Failures of General Electric Type HFA Relays in Use in Class IE Safety Systems" and investigated the use of the subject relays in the Shearon Harris Nuclear Power Plant (SHNPP) safety-related systems.

There are four HFA-51 relays located in the diesel generator control panels. These relays will be replaced prior to fuel load. Carolina Power & Light Company does not plan to use nylon or Lexan-type GE HFA relays in the SHNPP safety-related systems.

In addition to the review of the general concerns expressed in the Bulletin for the other relays used in the SHNPP safety-related systems, CP&L is conducting a review of the concerns expressed in IE Information Notice No. 84-20, " Service Life of Relays in Safety-Related Systems." We will report the results of this investigation and our proposed corrective actions by November 30,1984.

Should you have any questions concerning this submittal, please contact Mr. Sherwood Zimmerman at (919) 836-6242.

Yours very t;ruly, 1k A. B. Cutter - Vice President Nuclear Engineering & Licensing PS/mf (353PSA) cc:

Mr. B. C. Buckley (NRC)

Mr. Wells Eddleman Mr. G. F. Maxwell (NRC-SHNPP)

Mr. John D. Runkle Mr. Travis Payne (KUDZU)

Dr. Richard D. Wilson Mr. Daniel F. Read (CHANGE /ELP)

Mr. G. O. Bright (ASLB)

Chapel Hill Public Library Dr. J. H. Carpenter ( ASLB)

Wake County Public Library Mr. J. L. Kelley (ASLB)

Document Control Desk, NRC (Original)

A. B. Cutter, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power & Light Company.

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