ML20058K764

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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)


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l Me.. jig... Neppler, Ragional Director Ditectorste of Dguistory Operations Regior.III.

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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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Pirett Nvmger Manticello.

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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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