ML18142B282

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LER 1976-015-00 for R.E. Ginna, Air Ejector and Blowdown Radiation Monitors Alarmed
ML18142B282
Person / Time
Site: Ginna Constellation icon.png
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)


Text

LER 76-15//3L

,/'-'ONTROL BLOCK:

~ LICENSEE EVENT REPOF (PLEASE PRINT ALL REQUIRED INFORMATION) 1 LCENSEE LCENSE EVENT NAME LCENSE NUMBER 'TYPE TYPE

[aOO7 N Y R E G 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1 ~03 89

~

7 14 15. 25 26 30 31 32 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE'

~01 CDN'7 L L 0 5 0 0 2 4 4 4 2 4 7 6 0 5 2 4 7 6 7 8 57 58 59 60 61 68 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) 7 8 9 PRME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUI7PLER MANUFACTURER VIOLATION

~CD ~E H T E X C H N W 1 2 0 N 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION tOQSI The investigation of steam generator tube failures is continuing. The steam generator 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 80

[iso]

7 89 METHOD OF 80 FACILITY STATUS 90 POWER OTHER STATUS DISCOVERY DISCOVERY OESCRIPRON QO7 E ~oe 0 c Bad monitors and sample analysis 7 8 9 10 12 13 44 45 46 80 FORM OF ACTIVITY COATENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE 6 6 NA 7 B 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION I773I ~00 0 E NA 7 89 11 12 13 80 PERSONNEl INJURIES

~00 0 NA 7 89 11 12 80 OFFSITE CONSEQUENCES Q~g NA 7 89 80 LOSS OR DAMAGE TO FACII.ITY TYPE DESCRIPTION

~16 H 7 89 10 80 PUBLICITY Press release was made.

7 8 9 ADDITIONAL FACTORS NA 7 89 80 7 89 80 NAME: Leon D. White, j'r. PHDNE. 716-546-2700, ext. 2420 GPO 66 I ~ 667

~ e

~

~

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).

  • \

U.S. NUCLL'AB REGULATORY 4ISSION DOCKET NUMBER NRC FoBM 195 I2.20)

FILE NUMOEB NRC DISTRIBUTION FoR PART 50 DOCI(ET MATERIAL XNCIDENT REPORT TO: Mr O'Reilly "ROMRochester Gas.h Elec Co DATE OF DOCUMENT Rochester, NY 5-12-76 L D White DATE RecelvED 5-l4-76 QPLETTER Q NOTOB IZE 0 PROP INPUT FOAM NUMBER OF COPIES RECEIVED QOBIGINAL QPUNC LASSIF I E 0 EICOPY none signed DESCRIPTION ENCLOSURE Ltr furnishing a supplemental rpt on Reportabl~

Occurrence fP76-07,< uhich concerning failure of relay for trann "A" containment isolation 'CKyrO~LEDGED containment ventilation isolation to latch PElhoVE QQ @Op PLANT NAME: NOTE: XF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J ~ COLLXNS SAFETY OR ACTION/INFO RMATION ENVIRO 5-20-76 ehf BRANCH CHIEF:

W 3 CYS FOR ACTION LXC ~ ASST:

W/ CYS ACRS CYS ~hQX8G/ ENZ TO LA INTERNAL D I ST R I 8UTI ON I

Jl ~u-NRC PDR

& E 2 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 ~OLQ NS J EXTERNAL DISTRIBUTION ONTROL NUMBER LPDR: ns 4 TXC NSIC

0 8 8 ~ ~ I ~ 4