05000245/LER-1996-035, Forwards LER 96-035-02,documenting Event That Occurred on 960506.Rept Provides Results of Metallurgical Sample from Gamma Plug Per Commitment B15744-3 to Determine Cause of Cracks Found in Gamma Access Port Plug

From kanterella
Jump to navigation Jump to search
Forwards LER 96-035-02,documenting Event That Occurred on 960506.Rept Provides Results of Metallurgical Sample from Gamma Plug Per Commitment B15744-3 to Determine Cause of Cracks Found in Gamma Access Port Plug
ML20210J884
Person / Time
Site: Millstone Dominion icon.png
Issue date: 08/13/1997
From: Noll W
NORTHEAST NUCLEAR ENERGY CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20210J890 List:
References
B16677, NUDOCS 9708190084
Download: ML20210J884 (2)


LER-2096-035, Forwards LER 96-035-02,documenting Event That Occurred on 960506.Rept Provides Results of Metallurgical Sample from Gamma Plug Per Commitment B15744-3 to Determine Cause of Cracks Found in Gamma Access Port Plug
Event date:
Report date:
2452096035R00 - NRC Website

text

'

Ilope ferry Od. (NOtite IMI), Talerford, Cr u'/5U3 V Nuclear Energy nai.n,o, N ie., no.c, si.iion Northeast Nuclear lacrgy Company P.o Ilos128 Waterford, Cf D63E0128 (860) 447-1791 Fan (860) 444 4277 The Northeast Ut ties system AUG I 31997 Docket No. 50-245 B16677

\

Re: 10CFR50.73(a)(2)(i)

- U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

- This letter forwards Licensee Event Report (LER) 96-035-02, documenting an event that occurred at Millstone Nuclest Power Station, Unit No.1 on May 6,1996. This LER is submitted pursuant to 10CFR50.73(a)(2)(i).

This s' pplemental report provides the results of the metallurgical sample from the gamma plug per commitment B15744-3 to determine the cause of the cracks found in the gamma access port

- plug. The leaking gamma access port plug and some of the surrounding pipe were removed from the pipe. A metallurgical examination of the plug and surrounding pipe showed the crack was due

- to Intergranular St.ress Corrosion Cracking. This commitment is complete.

There no commitments contained within this letter.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY For: P. D. Hinnenkamp Director, Unit Operations By: W. G. Noll Manager, Operations 10001$ g }

9708190084 970813*

PDR ADOCK 05000245 S PDR-1 OH34215 REY.12-% '

0.S. Nuclear Regulatory Commission B16677\Page 2 of 2

Attachment:

LER 96-035-02 9

cc: H. J. Miller, Region I Administrator T. A. Eastick, Senior Resident inspector, Millstone Unit No.1 J. W. Andersen, NRC Project Manager, Millstone Unit No.1 l

l

_a