ML17354A709

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Safety Evaluation Supporting Amends 194 & 188 to Licenses DPR-31 & DPR-41,respectively
ML17354A709
Person / Time
Site: Turkey Point  NextEra Energy icon.png
Issue date: 10/27/1997
From:
NRC (Affiliation Not Assigned)
To:
Shared Package
ML17354A708 List:
References
NUDOCS 9711070088
Download: ML17354A709 (5)


Text

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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 N

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p-1.0 By letter dated August 27, 1997, Florida Power and Light (the licensee) submitted a request for changes to the Turkey Point, Units 3 and 4, Technical Specifications (TS).

The requested changes would allow the use of 12-hour shifts by deleting the discussion of specific work hours (currently 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />) from the administrative section of the TS.

Limits on the use of overtime are currently contained in the administrative section of the TS and would be retained.

In the submittal the licensee stated that it desired to change to the 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> shift to reduce the potential for errors during turnover and to increase the consecutive days off between the alternating 3 and 4 day work weeks.

The staff notes that several other facilities work 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> shifts.

2. 0 QLBUKIlQH On February 11, 1982, the NRC published in the ~zQ B~zz (47 FR 7352) the "Policy on Factors Causing Fatigue of Operating Personnel at Nuclear Reactors."

In June 1982, the NRC revised the policy and subsequently disseminated the revision in Generic Letter 82-12, "Nuclear Plant Staff Working Hours." which recommended that licensees incorporate specific working hour limits in plant TS to minimize the potential for personnel errors resulting from fatigue.

The staff subsequently determined that few events at U.S. nuclear plants have been attributed to inadequate control of working hours and that control of working hours through administrative procedures 97ii070088 97i027 PDR

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provides reasonable assurance that personnel overtime will not jeopardize safe plant operation.

Control, of overtime through administrative procedures is consistent with Action Item I.A.1.2.1, "Limit Overtime," of NUREG-0737, "Clarification of TMI Action Plan Requirements,"

dated November 1980.

Specific working hours are not required to be included in the TS under 10 CFR 50.36(c)(5),

"Administrative Controls".

The NRC policy is that licensee's are to establish controls to ensure that personnel are not assigned to shift duties while in a fatigued condition that could significantly reduce their mental alertness or their decision making capability.

The staff has found that shifts of 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> duration have not significantly impaired personnel performance, provided the overtime guidelines and controls are observed.

These overtime guidelines include limits such as not permitting an individual to work more than 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> straight.

allowing a break of at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> between work periods, and working no more than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> in a 7 day period.

The limits on use of overtime are currently specified in the Turkey Point TS and are being retained.

The staff concludes that the duration of the shift may be deleted from TS since the controls on overtime will be retained in TS to provided reasonable assurance that personnel are not assigned to shift duties while in a fatigued condition that could significantly reduce their mental alertness or thei r decision making capability.

3.0 T

Based upon the written notice of the proposed amendments, the Florida State official had no comments.

4.0 E

The amendments change requirements with respect to administrative requirements.

Accordingly, the amendments meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(10).

Pursuant to 10 CFR 51.22(b) no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendments.

5.0 GQKLUSIQH The Commission has concluded, based on the considerations discussed ab'ove, that (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed

manner, (2) such activities will be conducted in compliance with the Commission's regulations'nd (3) the issuance of the amendment will not be inimical to the common

defense and security or to the h'ealth and safety of the public.

Principal Contributor:

Richard Croteau Dated:

October 27, 1997