ML20148J267

Submits Proposed Change to Tech Specs,Extending 12-wk Test Interval to 16 Wks of Requirement to Measure Control Rod Drop Times as Required by 721115 Proposed Change 104

ML20148J267
Person / Time
Site:	Yankee Rowe
Issue date:	02/14/1975
From:	Vandenburgh D YANKEE ATOMIC ELECTRIC CO.
To:	Office of Nuclear Reactor Regulation
References
WYR-75-20, NUDOCS 8011210655
Download: ML20148J267 (3)

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February 14, 1975 . ..

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.....a .M Attention: Office of Nuclear Reactor Regulation

Reference:

(a) License No. UFR-3 (tecket No. 50-29) . ,

(b) Proposed Change No. 104, dated Noverber 7, 1972 G.f ,.-- ;, j (c) Change No.104, detter from D. J, Shovholt, /j C l DOL /AEC to YAIC, Attnt L. E. Minrdck, dated . - - , ,

Novenber 15, 1972. '

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D2ar Sir: \ '

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Furcunnt to Section 50.59 of the Cocnission's Rules and Regulations, the Yankcc Atomic Electric Company hereby requests authcrization to make -

the following changes PROPOSED __ C:-WrJE We propose an extension of the current tvelve (12) veek test interval to sixteen (16) weks, of the requirc cct to n.dasure centrol rod drop times at twelve (12) vcek intervals, as required by Propsed [

Change No.104, app oved Uovecher 15, 1972. The present tv(lve (12) veck cycle ends rehruary 22, 1975. {

i prAson rcR CHEI: We have been ocasuring control rod drop tires as prescribed in Proposed Change No 104, except for refueling outages, since Hoverter,1972 and have never measured a singic drop time in ,

excess of the lititing condition for operation. A total of'cight (8) <

r.hutdows have been cade for the purpose. This has established confidence in the long torn ability of the control roda to perform their intended f unction when needed.

An extension is requested at this time for two reasons 1) Our i Power Dispatcher has infomed us of a potential pcNer shortage during the period of February 22 due to the prior scheduling of outage tira p for other r.ajor gene' rating units in this area. The dispt.tcher is {

reluctant to schedule any additional outages for this tine period.

2) We are starting a new training class for reactor operators and the h additional month will pernit fuller utilisation of the outage time for reactor operator training. [!

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i United States Nuc1 car ulatory C ssion 14, 1975

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For the above reasons, we request this extension from February 22, 1975 to March 22, 1975 of the requirer,ent to shut the plant down to q L

perform control rod drop tir.e ceasurements. .I 1

SAFETY CCNSIDEPATICUSr This proposed change has been reviewed by the

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Euclear Safety Audit and Review Coccittee. The cause of the control j j

rod halfunctions was associated with mechanical prob 1ces in the lover shroud assembly. Replacement of the lowcr shroud asser.bly in cycle X j removed the cause of the malfunctions and subsequent.'nspection and ,

testing has revealed no unusual or abnormal conditions and that no safety implications are involved in the extension of this surycillance daterval.

SCHEI:ULE OF CHANGE: If this request is granted vo would postpone the plant outage from February 22 to March 22 and start the next twelve (12) week interval on March 22,' 19'/5.

r We regret the lateness of the date of this request but urgently

• request your timely review ot! this proposal. We trust the information is suf ficients however, should you. need additional information or clarification do not bu ' tate to contact us.

Very truly yours, YA! WEE ATOMIC E1.ECTRIC CCKFANY

• D. E. Vandenburgh Vice President -

COMMohTr.ALTil CF EASSACHi.!SETTS)

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Then personally appeared before r.e, D. E. Vandenburgh, who being duly l sworn, did state that he is a Vice Eresident of Yankee Atonic Electric Company, that he is duly authori::cd to file, execute and sign the foregoing request in the nare and on the behalf of Yankee Atocic Electric Cecpany, and )

that the state =ents therein are true to the best of hic knculedge and belief.

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Frederic E, Greenman Hotary Public f Hy Co=ission Expires Octcher 6,1976

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I * '., NRC DISTRIBUTION FOR PART 50 DOCKET MATERI AL (TEMPOR ARY FORM)

/bb CONTROL NO: j FILE:. ,

FROM: Yankee Atomic Electric DATE OF DOC DATE REC'D LTR TWX RPT OTHER Westborough, Mass 2-14-75 2-20-75 XXXX FACSIMILE D E Vandenbur2h TO: ORIG CC OTHER SENT AEC PDR vv lac none signed SENT LOCAL PDR XX CLASS UNCL ASS PROPINFO INPUT NO CYS REC'D DOCKET NO:

XXXXXX XXXXXX 1 50-29 DESCRIPTION: ENCLOSURES:

Ltr notarized 2-14-75. . . .trans the follow- Amdt tool / Change to Tech Specs: Consisting '

ing: of a change in the testing requirements with '

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