ML20058K764

Ro:On 740620,RPM Not Demonstrated to Be Operable Prior to Reactor Operation Below 10% of Rated Power

ML20058K764
Person / Time
Site:	Monticello
Issue date:	06/20/1974
From:	Larson C NORTHERN STATES POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
NUDOCS 9102140369
Download: ML20058K764 (1)

Text

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Jmer 20fl974~

l Me. . jig... Neppler, Ragional Director -

Ditectorste of Dguistory Operations Regior.III.

l thtited, Senem - Atenic Energy-Cr mi=simt l 799 Rsossvelt Ro :i i Glion Ellyn, Illdr.ois 61D37

Dear MW. Yeppler:

NONTIrm.Tn 17JCLEMt GTERATHE PUJE l' Dochut No. 50*253 License I@:r. DFP-22 On: Jmie- 2C;1974; it.uns- dlrcovered. that on, Jtme 14;1974, tha ICf'was not:

' der:nnstated to ba opere.ble. prior to reactcr cpemtien balc,: 10% of rat 0d PD%w-I Durin2. th:r entire time im intich-power uns belou lot ,.. the EM *was in. servico azuihetiening. merly cr. cat fer a p:ried of thrce mir:.:tes, durin thich

n. secord imicnendent caerster procerly verified: red. r.:xt=ent. The.chu:;e of

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failure.to pcrfom tho' required.TC3f Oporsbility sutveillmc: test is baing~

investigated.

Yours very truly,

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• C.B. Larrcm I Pirett Nvmger Manticello. i

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cat /a=g cct. J.7 O'Lettry G.Ctarnoff Minnesota. Pollution Ccntrul Agency Attat E.A.. Pry:in:

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