05000244/LER-2076-015, Air Ejector and Blowdown Radiation Monitors Alarmed

Air Ejector and Blowdown Radiation Monitors Alarmed

ML18142B282
Person / Time
Site:	Ginna
Issue date:	05/24/1976
From:	White L Rochester Gas & Electric Corp
To:	NRC/IE, NRC Region 1
References
LER 1976-015-00
Download: ML18142B282 (6)

LER-2076-015, Air Ejector and Blowdown Radiation Monitors Alarmed

Event date:
Report date:
2442076015R00 - NRC Website

text

LER 76-15//3L

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LICENSEE EVENT REPOF

,/'-'ONTROL BLOCK:

1 LCENSEE NAME [aOO7 N Y R

E G

1 0

7 89 14 15.

REPORT REPORT CATEGORY TYPE SOURCE

~01 CDN'7~

L L

7 8

57 58 59 60 LCENSE NUMBER 0 0 0

0 0

0 0 DOCKET NUMBER 0

5 0 0 2

4 4

61 68 (PLEASE PRINT ALLREQUIRED INFORMATION)

EVENT TYPE LCENSE

'TYPE 0

4 1

1 1

1

~03 25 26 30 31 32 EVENT DATE REPORT DATE' 4

2 4

7 6

0 5

2 4

7 6

69 74 75 80

EVENT DESCRIPTION

gg During normal operation air ejector and blowdown radiation monitors alarmed.

Analysis 7

8 9 80 [pg~]

f "B" SG blowdown showed iodine activity from a calculated leak rate of 0.06 gpm.

7 8 9 80 t00j4 Eddy current (ec) testing verified the leaking tube.

Twelve others in adjacent area whic 7

8 9 60

~05 appeared to have similar ID type indications at approx.

22 to 3" above the tube sheet 7

8 9 80 ere all plugged.

Additional ec testing was conducted (cont'd. on attached sheet)

COMPONENT MANUFACTURER 44 47 7

8 9 PRME SYSTEM

CAUSE

COMPONENT CODE CODE COMPONENT CODE SUI7PLER VIOLATION

~CD

~E H

T E X C H

N W

1 2

0 N

7 8 9 10 11 12 17 43 48 CAUSE DESCRIPTION tOQSI The investigation of steam generator tube failures is continuing.

The steam generator 80 7

8 9 80

~09 is a Westinghouse Series 44, using inconel tubes size 0.875 OD with 0.050 inch walls.

7 8 9 [iso]

OTHER STATUS AMOUNT OF ACTIVITY NA NA NA OFFSITE CONSEQUENCES Q~g 7

89 LOSS OR DAMAGE TO FACII.ITY TYPE

DESCRIPTION

~16 H

7 89 10 PUBLICITY 7

8 9 NA Press release was made.

ADDITIONAL FACTORS NA 7

89 7

89 FACILITY STATUS 90 POWER QO7 E

~oe 0

7 8

9 10 12 13 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE 6

6 7

B 9

10 11 PERSONNEL EXPOSURES NUMBER TYPE

DESCRIPTION

I773I ~00 0

E 7

89 11 12 13 PERSONNEl INJURIES

~00 0

7 89 11 12 METHOD OF DISCOVERY DISCOVERY OESCRIPRON c

Bad monitors and sample analysis 44 45 46 LOCATION OF RELEASE 44 45 80 80 80 80 80 80 80 80 80 7

89 NAME:

Leon D. White, j'r.

80 PHDNE. 716-546-2700, ext. 2420 GPO 66 I ~ 667

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Licensee Event Report Reportable Occurrence 50-244/76-15 Event Descri tion (cont'd.)

(approximately 1,000 tubes) to determine if the pattern of degradation existed in other peripheral tubes beyond the locality of the leak.

One additional tube, not in the periphery, was indicated to require plugging.

(Reportable Occurrence 76-15, 30-day).

• \\

NRC FoBM 195 I2.20)

U.S. NUCLL'ABREGULATORY 4ISSION DOCKET NUMBER NRC DISTRIBUTION FoR PART 50 DOCI(ET MATERIAL TO:

Mr O'Reilly QPLETTER QOBIGINAL EICOPY

DESCRIPTION

Q NOTOB IZE0 QPUNC LASSIF I E 0 PROP INPUT FOAM ENCLOSURE "ROMRochester Gas.h Elec Co Rochester, NY L D White FILE NUMOEB XNCIDENT REPORT DATE OF DOCUMENT5-12-76 DATE RecelvED 5-l4-76 NUMBER OF COPIES RECEIVED none signed Ltr furnishing a supplemental rpt on Reportabl~

Occurrence fP76-07,< uhich concerning failure of relay for trann "A" containment isolation containment ventilation isolation to latch

'CKyrO~LEDGED

. QQ @Op PElhoVE PLANT NAME:

NOTE:

XF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J ~

COLLXNS SAFETY BRANCH CHIEF:

W 3 CYS FOR ACTION LXC ~ ASST:

W/

CYS ACRS CYS

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ENZ TO LA OR ACTION/INFO RMATION ENVIRO 5-20-76 ehf INTERNALD IST R I 8UTION NRC PDR I & E 2

Jl~u-SCHROEDER/IPPOLXTO NOVAK CHECK R

I~ES S( 11WEI,II'E TEDHSC~01&CCA Y h

BAE SHAO VOLLlIER)BIJh'Qf l<RL'QRlI/Q~OLQJ NS LPDR:

TXC NSIC ns 4 EXTERNAL DISTRIBUTION ONTROL NUMBER

0 8

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