ML19308C989

LER 80-001/03L-0:on 800111,while Performing Suppression Chamber to Drywell Pressure Separation Test,Differential Pressure Transmitter 1-8741-51 Was Not Indicating Properly. Caused by Personnel Error Due to Drawing Error

ML19308C989
Person / Time
Site:	Quad Cities
Issue date:	02/01/1980
From:	Swales J COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19308C986	List: ML19308C985 ML19308C989
References
LER-80-001-03L-02, LER-80-1-3L-2, NUDOCS 8002130046
Download: ML19308C989 (1)

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NRC FCRM 366 U.S. NUCLEAR REGULATORY COMt.11sSIGN

. (7 77) vs (] LICENSEE EVENT REPORT CONTROL BLOCK: l l l l l

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(PLEASE PF; INT oR TYPE ALL REQUIRED INFORMATION) lo l t8l 9l l l LLIGENSEE 7

lQlA CCM l D l141 l@l 15 0} 0l 0l -lLICENSEOI 0lNUMBER OI -l OI Ol 0l@l 23 4

26 l 1LICENSE l 1 l 1TYPE l 1JOl@l$7 CAT l l@

58 CON'T 101i1  %% 160L l@l61 01310101 01 21 51 6841@l al EVENT 11 ilDATE l_I al Ol@l o f RfPORT 21 olDATEil a l n80l@

7 8 DOCKET NUveER 69 74 15 EVENT DESCRIPTION AND PROBABLE CONSEQUENCE 3 h l012l l While performing a Suppression Chamber to Drywell P'ressure Seaaratio- Test. nrnradoral 1013l 1 QOS 1600-3, differential pressure transmitter 1-8741-51 was found not to indicate f ,

t lo l4 l l properly. A check of the transmitter sensing line revealed that valve 1-1601-85 was l '

g] ; closed. DP was within limits. The I-8741-51 suppression chamber to drywell DP l IO Ta l I transmitter is a redundant post accident instrument. since sonoression chamhar I l0 l 7 l l pressure indicator PI l-1602-1, drywell pressure recorder PR l-8740-12. and devwell l IOIs I ; pressure indicator PIC-1-8740-l' were operable, system DP was siways avaffable. l l 7 8 9 80 E CODE SUSC E COMPONENT CODE SUSC dE SU '

IM l l l B l@ d@ dh l Z l 2 l Z l Z l Z l Z l@ LzJ@ l zl @

7 8 9 10 11 12 13 18 9 20

_ SEQUENTIAL OCCURRENCE .tiPORT REVsflON LE R /RO EVENT YTAR REPOHT NO. COOE iYPE NG.

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23 l 0 l 01 11 24 26 (f} l Ol 11 28 W

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44 47 CAUSE DESCRIPTION AN.* CORRECTIVE ACTIONS h gil0ll The cause of this occurrence was personnel error. Valve 1-1601-85 was not oronerly I

, gl ident fled on drawings and valve checklists due to its location. and was not ornnarivl  !

l returned to service after the dp transmitter was installed. Immediate corrective I gl action was to open the valve and verify proper operation of the DP transmitter. I g Drawing changes have been initiated, valves have been tagged. and a procedure 1 7 8 5! Cit,gpange has been initiated to in 0 de nghqspe, valves.

• t STATU3  % POWER CTHER STATUS OtSCO% s RY DISCOVERY DESCRIPTION I s l E l@ l0 l9 l7 l@l NA l lBl@lRoutineTest l I

t.CTivlTV CO TENT rJELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE R W8 9@ [Z_j @ l 7 10 NA l l 45 NA I 11 44 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPT1CN 18 I 71 10 l 0 l 0 l@l Z j@l NA l

' PERSONNEL INJUIES NUMBER DESCRIPTION @

[lT l 8I 9010 l 0 l@l 7 11 12 NA 80 l

LOSS TYPE OF NSCRIPTION CA DAMACE TO FACILITY Q v

FIT]IZ l@l NA l e 8 9 10 8J NRc usE ONtv Q g l* Gut @lOE CRIPTION @ NA 8002180 D .

7 g ;c lllllllllllllI ti8 69 30 * ~n J. Swales 2 l NAME OF PREPARER PHoNc.309-654-2241 ext. 173 o

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