ML18037A177

LER 79-011/03L-0 on 790517:during Refueling Outage, Discovered That Radiographer Received Overexposure of 3,790 Millirems for Second Quarter 1979.Cause Unknown & Under Investigation.Discussed Further in 790615 Ltr to NRC

ML18037A177
Person / Time
Site:	Nine Mile Point
Issue date:	06/14/1979
From:	Duda E NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17053A733	List: ML17053A732 ML17053A734 ML18037A177
References
LER-79-011-03L, LER-79-11-3L, NUDOCS 7906220417
Download: ML18037A177 (2)

Text

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L l CENSE E EV EN T R EPOR T 0~I CdNTROL BLOCK: QI {PLEASE PRINT OR TYPE REQUIRED INFORMATION)

I 6 IODII N Y N N P 1QE 0 0 - 0 QO 7 8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T

~O ,"ovo, ~LQE 0 5 0 0 0 2 2 0 3 0 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES 10 Durin refuelin ou

[0D3] was discovered that a radio ra heT received a technical overex osure of

~04 3790 millirem for the second uarter of 1979. No safet im lications

~OS resu'lted from this event.

~OB

~os 80 7 8 9 SYSTEM CAUSE CAUSE COMP. VALVE CODE CODE SUBCOOE COMPONENT CODE SUBCOOE SUBCODE

~OB ~ZZ Q>> ~AQIO ~FQIO Z Z Z Z Z' Q4 ~ZQ>> ~Z QIO, 7 8 9 10 11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION QIT LERIRQ REPoRT ACTION . FUTURE EVENTYEAR

~79 21 22 EFFECT

~23 SHUTDOWN

~01 24 REPORT NQ.

1 26

~m 27

~03 28 ATTACHMENT CODE .

29 NPRDA TYPE

~L 30 PRIME COMP.

~

31

~0 NO, 32 COMPONENT TAKEN ACTION ON PLANT METHOD HOURS Q22 SUBMITTED FORM SUB. SUPPLIER MANUFACTURER

~XQIE ~Z QIO ~Z, Pzo ~ZPOI O O O O ~N P33 ~N QQ4 ~Z Qzs Z 9 9 9 Qzs, 33 34 35 36 37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS 27 The cause of the overexposure is unknown-at this time and is still bein investigated., This resulted in minima'1 safet im lications.

7 8 9 80 FACILITY METHOD OF

~l5 7 8 STATUS 9

N Pzs ~OO P>>

10 19 POWER 12 13 OTHER 6 TATUS NA 44 DISCOVERY

~BQ 45 46 0 the basis of High DISCOVERY DESCRIPTION +32 TLD reaB>ng on 5/1 80 ACTIVITY CONTENT RELEASEO OF RELEASE

~Z Q33 Z Q34 AMOUNTOF ACTI V ITY NA NA LOCATION OF RELEASE Q 7 8 9 10 45 80 PERSOAINEL EXPOSURES 7 8 9 11 12 13 80 Ez 7 8

~p' 9

PERSONNEL INJURIES 11 LOSS OF OR DAMAGE TQ FACILITY 12

""Q 80 9

TYPE

~ZP43 DESCRIPTION NA 43 V 90622 0 4(q 8 9 10 80 PUBLICITY ISSUED DESCRIPTION VOO6220@tq NRC USE ONLY

~20 ~NQ44 NA 8 9 10 68 69 80 o 0

NAME OF PRFPARER E ~ DUDA PHONE: a