05000282/LER-1980-025, Forwards LER 80-025/01T-0

Forwards LER 80-025/01T-0

ML19338D773
Person / Time
Site:	Prairie Island
Issue date:	09/18/1980
From:	Mayer L NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19338D774	List: 05000282/LER-1980-025, Forwards LER 80-025/01T-0 05000282/LER-1980-025-01, /01T-0:on 800904,during Refueling Shutdown, Ultrasonic Exam of Steam Generator Support Bolts Revealed Crack Indications.Unit 2 Also Inspected.Caused by Environ Assisted Cracking.All Unit 1 Bolts Will Be Replaced
References
NUDOCS 8009230738
Download: ML19338D773 (1)

LER-1980-025, Forwards LER 80-025/01T-0

Event date:
Report date:
2821980025R00 - NRC Website

text

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NSD NONTHERN - STATES. POWER COMPANY M I N N E APO W E. MIN N E SCTA 5 5401

'I l

1 September 18, 1980 Mr J G Keppler Office of Inspection & Enforcement U S Nuclear Regulatory Con: mission 799 Roosevelt Road Glen Ellyn, IL 60137

Dear Mr Keppler:

PRAIRIE IS%ND NUCLEAR GENERATING PLANT Docket L. 50-306 License No. DPR-60

.Lhy Steam Gen'e'raEoi ~ Boltini Found ' Defective

~

The Licensee Event Report for this occurrence is reproduced on the back of this letter. Enclosed are three copies.

l

,1 This event is reported in compliance with Technical Specification 6.7.B.1(e)~since it represents failure of components required to cooe with accidents analyzed in the Final Safety Analysis Report.

Yours very truly, MO M

oA L 0 Mayer, PE Manager of Nuclear Support Services LOM/DMM/jh cc: Director, lJ., USNRC (40)

Directer, MIPC, USNRC (3)

MPCA Attn: J W Ferman NRC Resident Inspector

- over-

'.y 8009230738-