ML18037A324

Revised Deficiency Rept,Initially Submitted 800805. Sentence Wording in Section II, Subsequent Finding & Corrective Action, Has Been Changed

ML18037A324
Person / Time
Site:	Nine Mile Point
Issue date:	12/16/1980
From:	Rhode G NIAGARA MOHAWK POWER CORP.
To:	Robert Carlson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17053C319	List: ML17053C318 ML18037A324
References
10CFR-050.55E, 10CFR-50.55E, NUDOCS 8102190747
Download: ML18037A324 (6)

Text

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ACCESSION NBR:8102190747 DOC ~ DATEs 80/12/16 NOTARIZED: NO DOCKET FACIL:50-410 Nine Mile Point Nuclear Station, Unit BYNAME 2g Niagara" Moha 05000410 AUTH RHODE'gG ~ K 'iagara RECIP ~ NAME, AUTHOR AFFILIATION Mohawk Power RECIPIENT AFFILIATION Corp, CARLSONpR AT ~ Region ii Philadelphian Reactor Construction 8 Engineeri

SUBJECT:

Revised deficiency rept<initially submitted 800805, Sentence wording in Section IIi "Subsequent Finding 8 Corrective Actioni" has been= changed.

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DISTRIBUTI N CODE: B019S COPIES RECEIVED+LTR ENCL TITLE': Construction Deficiency Repor t (10CFR50.5SE)

NOTES:

RECIPIENT" COPIES RECIPIENT COPIES ID CODE/NAME, LTTR ENCL ID CODE/NAME. LTTR ENCL ACTIONe A/D LICENSNG 00 1 1 YOUNGBLOODgB 05 1 1 RUSHBROOKrM ~ 06 1 1 KIPER pK ~ 07 1 1 INTERNAL: AD/RC I/IE 17 1 1 ASLBP/J ~ HARD 1

&E'9 D/DIR HUM FAC15 EDO L STAFF 19 1 1 1 EQUIP QUAL BR11 1 1 HYD/GEO BR 22 1 I 1 1 L'IC QUAL BR 12 1 MPA 20. 1 1 NRC PDR 02'V 1.

OELD 21 1 1 13 QA BR 14 1 1 REG FILE 0 1 1 RUTHERFORDpN ~ IE< 1 1 DEV 21 1 EXTERNAL: ACRS ie LPDR 03 NSIC 08 1 1 AN 17 13M TOTAL NUMBER OF COPIES REQUIRED: LTTR 38 ENCL 38

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gr hl 7 NIAGARA H U MOHAWK NIAGARA MOHAWK POWER CORPORATION/300 ERIE BOULEVARD WEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474.1511 December 16, 1980 Office of Inspection and Enforcement Region I Attention: Mr. R.-T. Garison Reactor Construction and Engineering Support Branch U. S. Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406

Dear Mr. Garison:

'Re: Nine Mile Point Unit 2 Docket No. 50-410 Per discussions with your staff, Niagara Mohawk is correcting its 10 CFR 50.55(e) final report of August 5, 1980 regarding the environmental seismic qualification of certain electrical equipmment to be used at Nine Mile Point Unit 2. The last sentence under Section II. Subsequent Findin s and Correction Action of the report should have read: "Since a fai ure analyses s ows t at an e ectrical short circuit or open circuit in the instrument cannot damage the power source, no additiona1 qua1ification is required." A copy of the revised report is attached for your record.

Very truly yours, NIAGARA MOHAW POWER CORPORATION Gerald K. Rh e Vice President System Project Management PEF:ja xc: Director of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 ggPt~ qGf0'107

T FINAL REPOkT Potential R ortable 50.55 e Qeficienc Involvin ualification'of Electrical'E ui ment I. Descri tion of the Deficienc During an audit of our nuclear steam supply system Yendor conducted the week of March 26, 1980, no evidence (lack of documentation) was found to indicate that, the three electrical instruments indicated below were adequately qual ifiea:.

Inst~ ument MPL No. ication Lackin e

Conductivity El enent E12-N008'ualif E12-N001 Environmental'nd Sei'smic'nvironmental Level Transmitter and Seismic Rosemount'odel 1 l51DP E12-N058 Environmental Test Di fferent i al. Pressure , Incomplete Transmitter Subse uent Findin s and Corrective Act'.on As inaicated in our interim report dated May 12, 1980 for the Rosemount

'odel,llblOP differential pressure 'transmitter, an aaditioiial search'f the qualification records following the'udit located the qualification'.

documentation in another record file. To prevent the recurrence of being unable to retrieve documentation in a timely manner, the nuclear steam supply system Vendor's equality Assurance Program is being modified to cross-reference qualification records and vendor-supp'lied documentation.

Regarding conductivity element E12-N001 and level transmittar E12-N008, it'has been aetermined that no corrective action is required. These instruments are considered to be passive and are not required to function either auring or after a oesign basis accident. Since a failure analysis shows that an electrical short circuit or open circuit in the instrument cannot damage the power source, no aaditional qualification is required.

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The electrical instruments have been shown to be adequately qualified to satisfy their intended design function. Therefore, this condition could not have adversely affected the safety of operation of Nine Mile Point Unit 2 at any time throughout its expected lifetime.

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