ML19270H017

Forwards 790613 Interim Deficiency Rept Re Unacceptable Impact Values of Main Feedline Pipe Spools

ML19270H017
Person / Time
Site:	Midland
Issue date:	06/20/1979
From:	Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19270H018	List: ML19270H017 ML19270H021
References
HOWE-175-79, NUDOCS 7906220371
Download: ML19270H017 (4)

Text

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(- I power gg Stephen H. Howetl Senior Vice Ivesident General Of fices: 1945 West Pernali Road, Jackson, Michigan 49201. (517) 7R8 0453 June 20, 1979 Hove-175-79 Mr J G Keppler, Regicnol Director Office of Inspection and Enforcement Region III US I;uclear Regulatory Commission 799 Roosevelt Rood Glen Ellyn, IL 60137 MIDIAI:D IiUCLEAR PLtdiT UNIT I!0 1, DOCF.ET I;0 50-329 UIIIT I;0 2, ECCKET I:0 50-330 LIPACT TESTED - ITT GRII!I: ELL SUPPLIED MAIH FEED PIPE In accordance with the requirements of 10 CFR 50 55(e), this letter constitutes on interim report on the status of the main feedline pipe spools supplied by TIT Grinnell cnd which have some impact values not acceptable to the ASE Eoiler and Pressure Vessel Code.

The attachments to this letter provide a description of the discrepancy, potential safety implications, investigation and planned corrective actions.

The main steam and main feed piping material test results were reviewed on June 14, 1979 at I'IT Grinnell in Kernersville, I;C. The following vos determined:

1. As reported by ITT Grinnell, Heat II32762 did not meet Charpy impact test requirements at 30 F.

2. Heat L20479 was accepted by ITT Grinnell on the basis of a subsequent heat treatment and a third test. The subsequent heat treat of the test samples von in a laboratory furnace.

3 One spool from Heat 1132762 required bending, using Grinnell procedures which require elevated temperatures in the bend area. Samples cut from the spool in the heat affected area did not meet Charpy test require-ments at 30"F. This spool is on" hold" at Grinnell.

It is our interpretation that pipe con be impact tested a third time according to SA-106/SA-530 if a thermal treatment is utill:cd to improve the fracture properties of the as-rolled material.

2347 ,14 7906220 N

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' Hose-175-79 Follow up actions include obtaining:

1. A disposition or the g

one heat (N32762) which had unacceptable fracture properties at 30 F.

2. A rationale for the retecting and acceptance of heat L20479 which hed AS:2 Section III Code acceptable fracture properties after stress relief heat treatment.

3 A disposition of three spools subjectad to the bendin6 process.

Further status of these actions vill ha provided in the next interim (or final) report which vill be submitted by August 1,1979

( U- ^&

Enclosures:

(1) Management Corrective Action Report MCAR-1, Report No 29, Revision 1, dated May 25, 1979 (2) MCAR-29, Interim Report no 1, dated June 13, 1979 CC: Director of Office of Inspection &. Enforcement Att: Mr John G Davis, Acting Director, USNRC (15)

Director, Office of Management Information and Progrcm Control, USiRC (1) 2347 315

- Enclocure 1

. . QUALITY ASSURANCE PROGRU MANAGEMENT CORRECTIVE ACTIOr, REPORT MCAR-1 REPORT NO. 29

!!ay 25,1979 Rev.1 JODNO. 72_20 O NO. _4. 383. 4. 393 DATE TL1y ? ? - 1970

! ' DESCRIPTION (including references):

On May 21, 1979, ITT Crinnell notified Bechtel that nine (9) pipe spools fabricated from Heat No. N32762 f ailed to meet the physical impact requirements for the material.

'Ihe nine (9) spools identified are for the Feed Water System as listed below:

1-ELE-1-S- 638-13-3 1-ELB-2-5-638-13-5 2-ELB-1-S-639-13-3A 1-ELB-2-S- 63 8-13-3 1-ELE-2-S-638-13-6 2-EI.B-2-S-63 9-13-3 1-ELE-2-S- 63 8-13-4 2-ELE-1-S-639-13-3 2-ELB-2-S-639-13-4 NCR 2211 has been uritten and tags applied to identify these spools.

• RECOMMENDED ACTION (Optional)

1) All impact tested materials furnished by ITT Grinnell should be investigated to determine that acceptabic test results can be reinte, to the materials and the material condition furnished.

2) Those corrective actions taken by ITT Crinnell to comply with procurceent docunents subsequent to the non confermance identified in QA Flyer 76-F8, dated 12/15/76 should be examined. Continued on Page 2 REFERRED TO (Z ENGINEERING G CONSTRUCTION OOA MANAGEMENT O O PROCUREMENT j e-  %

ISSUED BY A011,3 Potentially Reportable Project O A Enynect Date ll REPORTADLE DEFICIENCY NOTIFIED CLIENT 5/22/79 l ate -

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0 NO O YES / Project Manager Dato l ,

ni caus" 2347  !.16

. rq WA' w! Mb r.mf CORRECTIVE ACTION TAKEN ,

d MAY 3 0 379

@AU(Y ASMnMCE AUTHORIZED BY Dato STANDARD DISTR 100 DON ADOmONAL DISTRIOUTION - AS APPROPRIATE FORM AL REPORT TO CLIENT ER $"oUs"o ' tic'TtT"$,7'"

rn (if Section !! Applies) Date Of'O OA MAN 4Gf R AAO fHOCUnE MI NT SUPPtif R QUAllTY MGR LAPO OA MANAGf R CON $1FtOC110N MANAG( A AAO OA MANAG(R PROJ $uPT PnOJ CONSTR UANAGER PROJLCT MANAGLR Ctetr CONSTr4 CC (NGINEER CLILNT AAO l'80JFCT Of't R AflONS M AN AGLR PF OCE CORRECTIVE ACTION IMPLEMENTED DvtssON f140CUitt MIN 1 MGR AAO PHOCtEllM( NI M AN AGE.R PROJ fHOCUntut NT MGR I DV $UITtliR QUALIIV MGfe VERIFIED BY

• oenote e arm. p,w ano .. inn .,s .=. oocum.as Project OA Enosneer Dato

MANACDIE!.'T CORRECTIVE ACTION PJ10RT REPORT 29, Rev. 1 Page 2 Recommended Action - continued.

3) A review of ITT Grinnell records for icpact tested caterials should be performed. The review should addrces test recults, the number of tests performed, that test samples are representative of the fabricated caterial and condition, that the temperature at which tests were performed was correct and any additiot al factors which would affect the acceptability of the test results.

4) Based on the results of item 1 thru 3 above, analyze the effect the identified materials could have on plant safety if uncorrected.

5) Based on items 1 thru 4 above, evaluate reportability under 10 CFR 50.55(c) by June 14, 1979. The PQAE and Project Manager should be notified inmedi-ately when the reportability status is determined.

6) If the material is found to be unsatisfactory for its intended use, in-plement those corrective actions necessary to assure that the completed systems will meet FSAR coc=itments.

7) State what steps ITT Grinnell has taken to prevent recurrence.

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