05000282/LER-1981-003, Forwards LER 81-003/03L-0

Forwards LER 81-003/03L-0

ML20003F481
Person / Time
Site:	Prairie Island
Issue date:	04/14/1981
From:	Mayer L NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20003F482	List: 05000282/LER-1981-003, Forwards LER 81-003/03L-0 05000282/LER-1981-003-03, /03L-0:on 810316,during Surveillance Test,Steam Exclusion Damper Actuation Setpoint Exceeded Limit.Caused by Foxboro Model 63U-CC-OHDR-F 6 Bistable Drift.Instrument Recalibr & Tested Satisfactorily
References
NUDOCS 8104210367
Download: ML20003F481 (1)

LER-1981-003, Forwards LER 81-003/03L-0

Event date:
Report date:
2821981003R00 - NRC Website

text

eff Northem States Power Company 414 Ncc?.et Mad Minneapons, Minnesota 55401 Temphone (612) 330-5500 April 14, 1981

%n k

hC6 ApR go 788/g 7 8,

Mr J G Keppler J

84 Office of Inspection & Enforcement

- g U

U S Nuclear Regulatory Commission Q

\\

X 799 Roosevelt Road h

Glen Ellyn, IL 60137 q

PRAIRIE ISLAND NUCLEAR GENERATING PLANT Docket No. 50-282 License No. DPR-42 One Steam Exclusion Setpoint Drifted Out-of-Spec The Licensee Event Report for this occurrence is reproduced on the back of this letter. Enclosed are three copies.

This event is reported in compliance with Technical Specification 6.7.B.2(a) since the reactor protection system and engineering safety feature instrument settings were found to be less conservative than those established by the technical specifications but did not prevent the fulfillment of the functional requirements of the systems.

R:A>

l L 0 Mayer, PE Manager of Nuclear Support Services LOM/TMP/bd l

cc:

Director, IE, USNRC (40)

Director, MIPC, USNRC (3)

NRC Resident Inspector MPCA Attn: J W Ferman

- over-l l

1

- BGb4 210 R

x. v

\\