ML19256F557

From kanterella
Revision as of 23:13, 1 February 2020 by StriderTol (talk | contribs) (Created page by program invented by StriderTol)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Forwards Summary Rept of Feedwater Piping Repair Program & Associated Observations & Findings, Re NRC 790928 Request
ML19256F557
Person / Time
Site: Millstone Dominion icon.png
Issue date: 12/07/1979
From: Counsil W
NORTHEAST UTILITIES
To: Reid R
Office of Nuclear Reactor Regulation
Shared Package
ML19256F558 List:
References
TAC-11793, NUDOCS 7912190409
Download: ML19256F557 (2)


Text

  • h
  • NOltrHEJUTr IrrILrrIES m ,.~.=""

3 ,4,_,.,

fMrddi. CONNECDCUT M101 "f,': 0 0.:= O'; "" (2m> m9M L L J :*:=':C"%l0!

December 7, 1979 Docket No. 50-336 Director of Nuclear Reactor Regulation Attn: Mr. R. Reid, Chief Operating Reactors Branch #4 U. S. Nuclear Regulatory Commission Washington, D. C. 20555

References:

(1) W. G. Counsil letter to H. R. Denton, dated November 13, 1979.

(2) W. G. Counsil letter to R. Reid, dated September 28, 1979.

Gentlemen:

Millstone Nuclear Power Station, Unit No. 2 Feedwater System Piping In Reference (1), ticrtheast Nuclear Energy Company (NNECO) documented its commit-ment to perform a repair of the affected welds of the feedwater system piping in accordance with the program docketed in Reference (2). Subsequently, the Staf f requested that a summary report of the repair program be provided, and further requested that data regarding crack depth be included. In response to those requests, Attachment 1, A Summary Report of the Feedwater Piping Repair Program and Associated Observations and Findings, is provided.

As stated in the Attachment, the repair program was directed at removal of the indications, and not at quantifying crack depth. Therefore, the data supplied refers to depth of metal removed and not to crack depth. The Staff is requested to be cognizant of this fact when evaluating the attached information.

The NRC Staff had also verbally requested that NNECO commit to a re-exaiaimia ci the repaired feedwater piping welds (AC-G-1, 2 and BC-C-1, 2) during the 1980 refueling outage. In confirmation of NNECO's previous verbal commitment, please be advised that NNECO will perform such an examination during the next refueling outage. In accordance with the requirements of I&E Bulletin No. 79-13, such (621 082 g 7912190

an examination would be limited to radiographic inspections if no indications are detected using that technique.

We trust you find the above information responsive to your verbal requests.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY

/ l

, l, blM W. G. Counsil Vice President Attachment 1621 083