ML20215M647

Annotated Ltr Informing That Technical Reply to Nov 1986 Ltr Not Received.Newly Discovered Description of Fraudulent Plant Leak Rate Computer Program,Containing Option for Substitution of Real Data,Encl.Investigation Demanded

ML20215M647
Person / Time
Site:	Zion  File:ZionSolutions icon.png
Issue date:	11/24/1986
From:	Reytblatt Z ILLINOIS INSTITUTE OF TECHNOLOGY, CHICAGO, IL
To:	Zech L NRC COMMISSION (OCM)
Shared Package
ML20213C853	List: ML20213C850 ML20215M552 ML20215M582 ML20215M607 ML20215M647 ML20215M661 ML20215M709
References
NUDOCS 8705140073
Download: ML20215M647 (2)

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ILLINOIS INSTITUTE OF TECHNOLOGY Lewis College of Science and Letters Department of Mathematics November 24, 1986 W

The Honorabic Lando Zech, Chairman US Nuclear Regulatory Commission Washington, DC 20555 Honorable Sir:

I wrote to you in early November, 1986. With regret, I must remark that I have not received a technical answer.

I an enclosing a newly discovered description of the fraudulent i

Zion Leak Rate Computer program. It contains an option, contrary to Appendix J to 10 CFR, for a fraudulent substitution of the real data by something else.

l been A number conducted of deficient and fraudulent on an exemption basis. tests (Zion) have Fraudulent computer programs were extensively used in violation of Appendix J to 10 CFR, Part 50 (LaSalle, Byron, Zion).

! D A relief has been granted to the citizens of Illinois in n

om the form of a cold shutdown of the Zion Plant for repair and o@ retesting test of its containment system in 1984 However, the 88@ Appendix of 1984J to was conducted 10 CFR. The same withfraudulent severe violations of gg apparently was used. computer program R$ A technical evidence of fraud was presented to Bernero a

@g year ago. I insist that the complete invaceirat4nn ^# "r_

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E Bernero be initiated. 10 CFR does not allow operation of nuclear facilities whose leak rate has not been determined R2 in accordance with Appendix J thereto and plant technical mS4; specifications.

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Sincerely,

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, DATA REJECTION CRITERIA t '; ..

'A. Reasonable Limits Check. -

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i If a sensor is out of the range specified It will be Ig'nored (i.e. sefcNi and the number of operable RTD's or Dewcalls in the subvolume will bc

. reduced by one.

50 4 T( F) <.150 F 20 4 DT( F)< 120 4

1 Should the number of sensors in a subvolume become equal to zero, the temperature or dewpoint of next higher number subvolume will be used for the temperature or dewpoint of that subvolume. I

' Ity (NOTE: For the 8th subvolume the.4+t subvolume temperature c- h;&,1-will be uied. The actual v Eume weighting factors will not be changed.

Loss of sensors

• will be documented on Data Sheet 12.7.)

(Fee 44 Se c,Wiv.c 4hc Jewgelat uJ:0 k tct egual 4. 44 frafer*M ,

, d i 2. If a pressure gauge is out of the range of 15 4 P(psla) 4 50 the pressure

. , gauge will be ignored (set =0).

l M4 is NOTE

(,4 Requirements of Section 5.7.B.25 will be met.

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