ML20093K247

Forwards Suppl to Response to Issue 2,informing of Identification of Eight Cabinet & Two Locally Mounted Addl N1 Instruments Installed Prior to 820407 & Identification of Six Addl N1 Instruments Requiring Rework Per ASME Code

ML20093K247
Person / Time
Site:	Waterford
Issue date:	10/15/1984
From:	Cain J LOUISIANA POWER & LIGHT CO.
To:	Eisenhut D Office of Nuclear Reactor Regulation
References
W3B84-0496, W3B84-496, NUDOCS 8410170239
Download: ML20093K247 (3)

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Louisiana 2 O W E R & L I G H T ! NEWOALEANS.LOUSuWA

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. p504}50SE204 MIDDLE SOUTH UTluTIES SYSTEM October 15, 1984 p7,[jy,fy Chief Executive Officer W3B84-0496 Director of Nuclear Reactor Regulation ATTN:

Mr. Larrell G. Eisenhut, Director Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.

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SUBJECT:

Waterford 3 SES Partial-Response to Items from Waterford Review Team

REFERENCES:

1) Letter, D.G. Eisenhut to J.M. Cain, "Waterford 3 Review," dated June 13, 1984

2) Letter W3B84-0495, J.M. Cain to D.G. Eisenhut,

" Revised Program Plan" dated October 10, 1984

Dear Mr. Eisenhut:

The purpose of this letter is to submit a supplement to the response to Issue 2, reflecting information developed since our August 10, 1984 submittal. The information contained in this supplement was informally provided to your staff. The logic in our original response to Issue 2

-remains unchanged.

The supplement has been reviewed and verified by LP&L QA in accordance with j

procedure QASP 19-13.

The designated subcommittee of the Waterford Safety Review Committee also has reviewed the adequacy of the supplement for resolving the issues raised. The subcommittee scope of responsibility does not. include independent validation of the facts.

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.Waterford 3 Investigation and Evaluation Inquiry Report Team Dr. J. Hendrie,

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SUPPLEMENT TO RESPONSE TO CONCERN NO. 2

-SUBMITTED AUGUST' 10, 1984' DISCUSSION:

In preparation'for the reinspection of N1 instrument lines conducted in response to Issue No. 1 i(Inspection Personnel Issues), an inconsistency was identified between the Instrument List and a - Mercury isometric ' drawing.

A review - was therefore conducted consisting of a cross-check between the Instrument List and the Mercury isometric drawings for all N1 instrument lines, and. a review of '

Design Change Notices (DCNs) posted against either the Instrument ' List or the

-Isometric Drawings pertaining to the classification of N1 instruments.

As a result of the review, the following revisions and additions to the: response-to Concern No. 2 submitted on August 10, 1984 (W3B84-0467) have been identified.

10 additional N1 instruments installed. prior to April 7, 1982 were identified (for a total of 202 instead of 192).

Of the 10 additional N1 instruments identified, eight are cabinet

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mounted (for a total-of 110 instead of 102) and two are locally mounted.

The eight additional cabinet mounted NL instruments identified underwent QAIRG review and full documentation is available.

Four cabinec mounted and the two additional. locally mounted N1 instruments identified were installed with ASME III/ ANSI B31.1 class breaks, and will be reworked to ASME Code requirements.

There is no change to the previously stated Cause, Generic Implications and i

Safety Significance.

CORRECTIVE ACTION PLAN / SCHEDULE:

The 12 N1 instrument installations noted in the original response plus the six l

additional N1 instrument ' (four ' cabinet mounted /t.wo locally ' mounted) will be reworked to ASME Code requirements before fuel load.

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