ML20195E990

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Responds to IE Bulletin 80-13, Cracking in Core Spray Spargers. Spargers Inspected During 1986 Refueling & Maint Outage.Crack Length Unchanged from Previous Exam Reported in Util .No Corrective Action Required
ML20195E990
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 05/16/1986
From: Mangan C
NIAGARA MOHAWK POWER CORP.
To: Murley T
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-80-13, NMP1L-0061, NMP1L-61, NUDOCS 8606090320
Download: ML20195E990 (1)


Text

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M Y NIAGARA RUMOHAWK NBAGARA MOHAWK POWER CORPORATION /300 ERIE BOULEVARD WEST. SYRAC'JSE, N Y.13202/ TELEPHONE (315) 4741511 May 16, 1986 -

NMP1L 0061 Dr. Thomas E. Murley i Regional Administrator U. S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 Re: Nine Mile Point finit i Docket No. 50-220 I. E. Bulletin 80-13

Dear Dr. Murley:

In accordance with InsnWinn and Fnforcement Bulletin 80-13, Niagara Mohawk visually inspected the Nine Mile Point Unit 1 core spray spargers and associated internal piping during the 1986 refueling and maintenance outage.

Our recent re-examination indicates that the crack length has not changed from that of the previous examination, which was reported in our letter dated May 31, 1984. Since no other indications of cracks were found, no corrective action is required at this time. Niagara Mohawk will continue to visually inspect the core spray spargers and associated internal piping during future refueling outages.

Sincerely, NIAGARA M0 HAWK POWER CORPORATION gg86 288R 8888$p

@8^1 Senior Vice President KBT:sym 6066I cc: NRC Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, DC 20555 Director of Nuclear Reactor Regulation Attention: Mr. John A. Zwolinski, Project Director BWR Project Directorate Number 1 Division of BWR Licensing U. S. Nuclear Regulatory Commission bj l Washington, DC 20555

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