ML17208A554

RO 335-80-17:on 800428,cracks Were Found to Occur at Same Location on Stainless Steel Socket Welded Elbows During Installation in Secondary Sys.Caused by Defective Fittings. All Identical Fittings Were Inspected & Found Satisfactory

ML17208A554
Person / Time
Site:	Saint Lucie
Issue date:	04/29/1980
From:	Wethy C FLORIDA POWER & LIGHT CO.
To:
References
REF-PT21-80-226-000 NUDOCS 8005080344
Download: ML17208A554 (3)

Text

REGULATORY I RMATION DISTRISUTION SYST.(RIOS)ACCESSION NBR:8005080344 DOC~DATE: 80/04/29 NOTARIZED:

NO FACIL;50 335 St..Lucle Plantg Unit 1g Florida Power 3 Light Co~AUTH~NAME, AUTHOR AFFILIATION WETHYEC AM, Florida Power 8 Light Co.RECIP~NAME RECIPIENT AFFILIATION DOCKET¹05000335

SUBJECT:

Ro 335 80 17:on 800428qcracks were found to occut at same location on stainless steel socket welded elbows during installation in secondary sys~Caused by defective fittings, All identical fittings were inspected L found satisfactory.

DISTRIBUTION.

CODE: AOOES COPIES RECEIVED:LTR g ENCL 9 SIZE:~TITLE: Incident Reports NO T E S~ee>>~m~eneesoeeyweaee>>~>>~>>

RECIPIENT IO CODE/NAME ACTION: OS BO EDgB%g INTERNAL!0 E 0 ILE 14 TA/EDO 16 EES 18 PLANT SYS BR 20 AD PLANT SYS?3 ENGR BR 25 PHR SYS BR 27 OPERA LIC'R 29 AUX SYS BR AEOD DOUG MAY TERA JORDANpE~/IE EXTERNAL: 03 LPDR 29 ACRS COPIES L'TTR EN L 4, 1 2 1 1 1 1 1 1 1 1 10 1 1 1 1 16 1 RECIPIENT ID CODE/NAME 02 NRC POR 11 MPA 15 NOVAK/KNIEL 17 AD FOR ENGR 19 I8C SYS.BR 22 REAC SAFT BR 24 KREGER 26 AD/SITE ANAL 28 ACDENT ANLYS AD/ORP>>OOR BERLINGER P C~HANAUERpS~04 NSIC COPIES LTTR,ENCL 1 3 1 1 1 1 1 1 1 1 3 8)cog TOTAL NUMBER OF COPIES REQUIRED: LTTR 61 ENCL

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Subject:

'll'0 FOP.FACS3,'Ill 8 T~4V.'S)IISSTGX TO CG"I'IP f 10 CrR PAPT 21 I'110llPT IIEPOaTAVa.E OCCIZal:::CE 335-80-17 Cracking In 1/2" Schedule 40 Stainless Steel Elbows Event: Tltis me~o is to confi~a telephone call on April 28, 1980 t:o'.fr..St:eve Zlrad af your office On April 28, 1980, upon performance of liquid pcnet:rant e~a-;nination of Scltedule 40 1/2" stainless steel A5"ocl t: velded elba;rs being, in.tailed in a secondary system, cracks frere found to have occurred at approzinately t: he sar.'e location in eacl>fittin;;.Investigation of the inczdent determined that tl]e fittings~ere prc-cured to AS!I Section.III Cla"'require~ents and vere received Mith appropriate certlficatidns dated in August]974 fran Standard I'ittfngs Co.pany of Opelousas, J a.The fitt:ings of t:hi heat: appear to bc defective in that al J three of the fitt:ings received fran lteat code, 1PL, heat nu>br.r P20300 cracked upon in tal]ati,nn.

Tun a." the three fittin of another heat code and heat number procured at the sa-, e t joe vere inspected ard inhere found ta bc acceptable.

The t:hird is~inaccessible This event is repartablc in that: the material vhich was procured ta*.AS'.fE Sect:ion III Cla's 2 requirements could have bee6 installed in safety related systems, t: he cracking appears ta'be gen ric, and the" liquid penetrant era-.ination cauld have failed to reveal t.he cracking.Corrective Action: As noted abovp, idontical fittings of a different heat procured at the.same tine vere inspected ard found to be satisfactory.

It ttas deter-'ined that.St.lucia Unithas no'-at:her f jt~tinfts of the questionable heat an si.tc.St.Lucic IJnit 2 and Turkey Point Units 3 and 4 Mill be notified of this event.C.11.Ik:thy'Plant)fanagcr St.Lucic Plant QII4/B.'IP:

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