ML18352A349

Licensee Event Report ER-76-0087: Reactor Protective System, Main Steam Flow Transmitter Was Found Out of Tolerance During Surveillance Testing, & Transmitter Could Not Be Recalibrated

ML18352A349
Person / Time
Site:	Palisades
Issue date:	03/29/1976
From:	Bixel D Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER 1976-007-00
Download: ML18352A349 (2)

Text

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• ' consumers

• Power company General Offices: 212 West Michigan Avenue, .Jackson, Michigan 49201

• Area Code 517 788-0550 March 29, 1976 DOCKET 50-255, LICENSE DPR PALISADES PLANT, E7-76-07 REACTOR PROTECTIVE SYSTEM Attached is a reportable occurrence which relates to the Palisades Plant.

This occurrence has been classified a reactor protection system instru-ment setting found to be less conservative than those established in the Technical Specifications but which do not ,prevent the fulfillment of the functional requirements of the affected system.

David A. Bixel Assistant Nuclear Licensing Administrator 3724.

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LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE

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@E]coNT 7*' 8 IP Io I 57 58 w w59 60 lo ls lol-lol3lolsl lol3lol9l7l61 61 68 69 74 lo I4 Io Ii I 1 I 6 I 75 80 EVENT DESCRIPTION IQ@J I Main steam flow transmitter (FT-464) was found out of tolerance during surveillance I 7 8 9 80

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!o/51 I 7 8 Rx trip signals from the transmitter may have been impaired due to the faulty trans- I 9~----=---=---------------_;;._ _ _ _ _ _ _:~-----------..:.__ _ ___,180

&@] I mitter. The remaining main steam flow channels were operable. This is Reportable J 7 B g n RO 76 6 PRIME so SY!l'fE~ ur1i5.U£:E! -

• COMPONENT COMPONENT '

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CODE 11 12 COMPONENT CODE I I I N I s I TI RI lJ I 17 SUPPLIER L!U 43 44 MANUFACTURER IF I1 I8 I0I 47 VIOLATION

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48 CAUSE DESCRIPTION

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7 8 9 / 80

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8 9 illJ 10 I oI ol ol12 13 NA 44

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45 46 NA BO FORM OF ACTIVITY CONTENT 7

rn 8 RELEASED 9

LU OF RELEASE

~I 10 11 AMOUNT OF ACTIVITY NA 44 45 NA LOCATION OF RELEASE 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 7

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12 13 NA 80 PERS.ONNEL INJURIES NUMBER DESCRIPTION 7

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12. 80 OFFSITE CONSEQUENCES Eifil NA 7 8 9 80 LOSS DR DAMAGE TO FACILITY TYPE DESCRIPTION OJfil kJ 7 8 9 10 NA 80 PUBLICITY

[2JZj NA 7 8 9 80 ADDITIONAL FACTORS IT{fil I When the transmitter was calibrated over the range of the instrument, the results 7 8 9 80

[Dfil I of the output were non-linear.

7 8 9 80 NAME: _ _ M_a_r_k_J,_._M_a_r_c_h_i_ _ _ _ _ _ _ _ _ _ _ _ _ PHONE: 414/ 4 32-3311 GPO. 881- 667