ML19351F692

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Ao:On 740617,safety Sys Setting Less Conservative than Tech Specs Limiting Setting.One High Flux Monitor Did Not Trip as Required.Written Rept to Be Forwarded within 10 Days
ML19351F692
Person / Time
Site: Humboldt Bay
Issue date: 06/18/1974
From: Searls F
PACIFIC GAS & ELECTRIC CO.
To: Engelken R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
NUDOCS 8102180300
Download: ML19351F692 (1)


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ICS IPMOLSB OAK 02136 (2-045571E1681437 01012 4th781421119MJUN kN N D I

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PMS TDRN SANFRANCISCO CA 119 06-17 NFT 3r R H ENGELKEN, DLR

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DIRECTOR DIRECTORATE OF REGULATORY OPERATIONS

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REGION 5 US ATOMIC ENERGY COMMISSION R

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j RE' DOCKET NUMBER 50-133 LICENSE NUMBER DPR-7 HUMBOLDT B AY i

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THIS IS TO CONFIRM OUR TELEPHONE CONVERSATION WITH MR W A ALBERT I

CF YOUR OFFICE ON JUNE 17 CONCERNING AN ABNORMAL OCCURANCE WHICH 8

OCCURRED AT 0700 HOURS ON JUNE 17. THIS OCCURANCE INVOLVED A 8

SAFETY SYSTEM SETTING LESS CONSERVATIVE THAN THE LIMITING i

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SETTING ESTABLISHED IN THE TECHNICAL SPECIFICATION. ONE HIGH FLUX f

MONITOR DID NOT TRIP DURING THE DAILY TE'ST AT 120 PLUS NINUS 3 PERCENT AS REQUIRED IN TABLE VI-I 0F THE TECHNICAL SPECIFICATION.

A WRITTEN REPORT DETAILING THE CIRCUMSTANCES AND CONDITIONS AT.

THE TIME OF THE OCCURANCE WILL BE FORWARDED WITHIN TEN DAYS 1

I 0F THE OCCURANCE PER SECTION IX AND H 2 (A) 0F OUR' TECHNICAL SPECI FICATI ONS l

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