ML18227A436

Letter Transmitting Licensee Event Report, Steam Generator Tube Support Plate, in Unit 4 Occurred on 5/17/1976 in Accordance with Technical Specification 6.9.2 to Provide Prompt Notification

ML18227A436
Person / Time
Site:	Turkey Point
Issue date:	05/27/1976
From:	Schmidt A Florida Power & Light Co
To:	Moseley N NRC/RGN-II
References
PRN-LI-76-128
Download: ML18227A436 (6)

Text

FLORIDA POWER & LIGHT COMPANY May 27, 1976 PRN-LI-76-128 Mr. Norman C. Moseley, Director, Region II Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 230 Peachtree Street, N. W., Suite 818 Atlanta, Georgia 30303

Dear Mr. Moseley:

REPORTABLE OCCURRENCE 251-76-3 TURKEY POINT UNIT 4 DATE OF OCCURRENCE: MAY 17, 1976 STEAM GENERATOR TUBE SUPPORT PLATE The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9.2 to provide prompt notification of the subject occurrence.

Very truly yours, Vice President Power Resources MAS/cpc Attachment cc: Jack R. Newman, Esquire Director, Office of Inspection and Enforcement (40)

Director, Office of Management Information and Program Control (3)

HELPING BUILD FLORIDA

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LICENSEE EVENT REPQ~

CONTROL BLOCK: (PLEASE PRINT ALL REQUIRED INFORMATION7 1

UCENSEE UCENSE EVENT NAME UCENSE NUMBEA TYPE TYPE Qpg F LT S4 0 0 0 0 0 0 0 0 0 4 1 1 1 1 ~01

~~

7 89 14 15 25 26 30 31 32 AEPOAT, REPOAT CATEGORY TYPE SOUACE OOCKET NUMBER l

EVENT OATE AEPOAT OATE

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[oa~jcoNv ~0 0 5 0 0 2 5 1 0 5 7 7 6 0 5 7 7 6 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION Qg Durin the current refuelin outa e a section of the sixth tube su ort 7 8 9 80 n o 4 b the manufacturer. The sectio 7 89 80 manufacturer's Research and Develo ment Laborator for 7 8 9 80 7 8 9 80

~06 section has been identified. Several observations were 7 8 9 PRME 80 SYSTEM CAUSE COMPONENT COMPONENT 7

LCCCC 8 9 10

~IF COBE COOE 11 12 H T COMPONENT CODE E X C H 17 SUPPLXA N

43 44 MANUFACTURER W 1 2 0 47 48 CAUSE DESCRIPTION IOOI Laborator examination results and evaluations have not determined the 7 8 9 80 7

Jag 8 9 f his occurrence. The manufacturer has undertaken a dia nostic 80

~10 ro ram to develo an understanding of the observed conditions.

7 89 80 FACILITY METHOO OF STATUS POWER OTHER STATUS OISCOVERY OISCOVERY OESCAIPTION Qg 7 8 9 H ~oo 10 o N A 44 c

45 Vendor 7:nspection 12 13 46 80 FORM OF ACTIVITY CONTENT RELEASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE Q~g z z N A N/A 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES N A 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER OESCRIPTION

~4 ~oo 0 N A 7 8 9 11 12 80 PROBABLE CONSEQUENCES

~15 N/A 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION N A 7 89 10 80 PUBLICITY N/A 7 89 ~ 80 ADDITIONAL FACTORS See Pa e Two for Continuation of Event Description.

7 89 80 7 89 80 NAME: M. A. Schoppman PHONE. 305/552-3779 GPO eeI. eeT

~l II CX

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REPORTABLE OCCURRENCE 251-76-3 LICENSEE EVENT REPORT PAGE TWO Event Descri tion (Continued) made of cracking of the ligament between a tube hole and an interstitial flow hole. The manufacturer's diagnostic program is continuing. This is the first reportable occurrence report related to degradation of a steam generator tube support plate.

(251-76-3).

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