ML19210F049

LER 79-083/03X-2:on 791008,during Normal Operation,Routine Computer Printout of Core Performance Log Indicated That Max Fraction of Limiting Power Density Was Above Tech Spec Limits.Reactor Power Reduced Approx 3% to Tech Spec Limits

ML19210F049
Person / Time
Site:	FitzPatrick
Issue date:	11/28/1979
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19210F048	List: ML19210F047 ML19210F049
References
LER-79-083-03X, LER-79-83-3X, NUDOCS 7912130454
Download: ML19210F049 (2)

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• POWER AUTHORITY OF THE STATE OF NEW YORK JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET NO. 50-333 ATTACHMENT TO LER 79-083/03X-2 Page 1 of I During normal operation, operations personnel noted that a routine computer printout of the core performance log indicated that the Maximum Fraction of Limi ting Power Density (MFLPD) was 1.014 and 1.016 for two nodes compared to a Technical Specification limit of equal to or less than 1.000. Reactor power was immediately reduced approximately 3% in accordance with the requirements of Technical Specification, Appendix A, Paragraph 3.5 3:. This action restored MFLPD to within the limits of Technical Specifications within the time frame allowed and is considered to be equivalent to operation in a degraded mode.

Following the initial power reduction, the control rod pattern was adjusted to reduce local power and power was returned to approximately 100%

of rated power three hours later.

The event did not represent any significant hazard to the public health and safety.

NbTE: Revision 2 of this LER is submitted to correct the technical specifica-tion paragraph reference above.

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