05000306/LER-1979-001, Forwards LER 79-001/03L-0

Forwards LER 79-001/03L-0

ML19296A189
Person / Time
Site:	Prairie Island
Issue date:	02/09/1979
From:	Mayer L NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19296A190	List: 05000306/LER-1979-001, Forwards LER 79-001/03L-0 05000306/LER-1979-001-03, /03L-0 on 790112:during Surveillance Test Found That Instrument 2TM-404V,overpower delta-T Summing Circuit, Had Drifted Due to Drift in Foxbore Model 66RC-OL Summing Unit
References
NUDOCS 7902130171
Download: ML19296A189 (1)

LER-1979-001, Forwards LER 79-001/03L-0

Event date:
Report date:
3061979001R00 - NRC Website

text

NSR3 NORTHERN STATES POWER COMPANY M IN N E A PO LI S, M I N N E BOTA 55401 February 9, 1979 Itr J G Keppler Of fice of Inspection & Enforcement U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137

Dear tir Keppler:

PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket No. 50-306 License No. DPR-60 Overpower 4T F (60) Function Setpoint Found Drifted 0.1% High The Licensee Event Report for this occurrence is reproduced on the back of this letter.

Enclosed are three copies.

This e m nt is reported in compliance with Technical Specification

6. 7. B. 2. (t) in that the setpoint was less conservative than established by technical specifications.

,urs ve ry truly, L0 Mayer, PE

!!ar ager of Nuclear Support Se r vices LOM/ JAG /deh cc:

Director, IE, USNRC (30)

Director, MIPC, USNRC (3)

MPCA Attn:

J W Ferman 790213 O/7/

- over-