05000289/LER-1977-021-01, /01T:on 770726,during Normal Operation,Radiation Monitor RM-A2 Failed & Atmosphere Sampling of Reactor Bldg Not Performed.Caused by Improper Reassembly Following 770725 Surveillance Test.Monitor Repaired.Procedure to Be Revi

/01T:on 770726,during Normal Operation,Radiation Monitor RM-A2 Failed & Atmosphere Sampling of Reactor Bldg Not Performed.Caused by Improper Reassembly Following 770725 Surveillance Test.Monitor Repaired.Procedure to Be Revised

ML19261F321
Person / Time
Site:	Crane
Issue date:	08/09/1977
From:	Potts W METROPOLITAN EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19261F320	List: 05000289/LER-1977-021-01, /01T:on 770726,during Normal Operation,Radiation Monitor RM-A2 Failed & Atmosphere Sampling of Reactor Bldg Not Performed.Caused by Improper Reassembly Following 770725 Surveillance Test.Monitor Repaired.Procedure to Be Revi ML19261F319
References
LER-77-021-01T, LER-77-21-1T, NUDOCS 7910250781
Download: ML19261F321 (1)

LER-1977-021, /01T:on 770726,during Normal Operation,Radiation Monitor RM-A2 Failed & Atmosphere Sampling of Reactor Bldg Not Performed.Caused by Improper Reassembly Following 770725 Surveillance Test.Monitor Repaired.Procedure to Be Revised

Event date:
Report date:
2891977021R01 - NRC Website

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LICENSEE EVENT REPORY CONTROL BLOCK:l l

l (pLEASE PRINT ALL REQUIRED INFORMATION) 1 8

LCENSEE LCENSE EVENT NAME LCENSE NUMBEA TYPE TYPE O1 I el Al Tl d I l 1l l 0l 0l-l0 0l0l0 0l-l0l0l hl1 1

1 l 1l l 0 l 1l 7 89 14 15 25 26 30 31 32 1

OCCKET NUMBER EVENT DAJE AEPORT CATE CATEGORY TYP AC O 1 CON'T l l

l [SlLl l 0l $l Ol-l 0l 2l 8 l 9 l 0l 7 2l c 7l7 l l 0l S[ 0[ 9 7l 7l 7 8 57 58 59 80 61 88 89 74 75 80 EVENT OESCRIPTION 38 l During normal operations it was discovered that Radiation Monitor RM-A2 was out of l

7 89 80 3E l service and an atmesthere sanele of the R.B. was not performed.

The meniter was l

7 89 80 3E l rareired ana a samtle of the 3.3. atmosthere was taken.

This is a retetitiour l

7 89 80 hl

.e.,o

(-

_o, /S mi l

7 89 80 nm l l

7 89 80 pg SYSTEM

CAUSE

COMPONENT COMPONENT CCOE CODE CCMPONENT COCE SUF4MA MANUFACTUAER

%1DLATON RE l3l Bl lD l lZ l z l z l Zl Zl Zl lZ l lZl9l9l9l W

7 89 10 11 12 17 43 44 47 48 CAUSE OESCRIPTION O

l The =cnitor leaked due to a failure to ensure the 0-ring was in place prior to l

7 89 80 3l returning the detector to the sample chamber and the procedure did not require l

7 89 80 DE l va-ifim+ien of a trere-vacuum (cont. under additional factors) l 7 89 80 FACLITY METHC0 OF STATUS

% POWER OTHER STATUS CISCOVEAY DISCOVEAY DESCRIPTON 8

[LJ l il 0101 i NA l W l

NA 7 8 9

10 12 13 44 45 48 80 FOAM OF ACTMTY CCNTENT AELEASED CF AELEASE l AMOUNT OF ACTM1Y LOCATON OF AELEASE W

NA l

l

IA

][

y 7 8 9

10 11 44 45 80 PERSONNEL EXPOSUAES NUMBER TYPE DESCAIPTON EE l0 l Cl C{ W NA

[

7 89 11 12 13 eo PEASONNEL INJUAIES NUMBER DESCAIPTON El0 nl0l l

NA l

7 89 11 12 80 OFFSITE CONSEQUENCES DE l NA l

7 89 go LOSS DA OAMAGE TO FACluTY TYPE DESCAIPTON DE lZj NA l

7 89 10 go PUBUCITY 1

l Included in weekly news release.

l 7 89 80 (cause description cent.)

AOOITIONAL FACTORS Ql and flev before returning the scnitor to service.

'"he procedure vill be zg2 043 l revised to ensure proper assembly.

l 1

7 89 80 NAME:

'4. E. Potts 9 9-PHCNE:

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7 910250 g/