ML17300A974

Discusses Actions Taken in Investigation of Bechtel Deficiency Rept DER 86-29 Re Cracked Reactor Coolant Inlet Nozzle on Letdown Hx.Utils Should Be Notitified to Perform Visual Exam of Inlet & Outlet Nozzles.Part 21 Related

ML17300A974
Person / Time
Site:	Palo Verde
Issue date:	06/16/1987
From:	Brooks R RECO INDUSTRIES, INC.
To:	Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
Shared Package
ML17300A973	List: ML17300A974
References
REF-PT21-87-108-000 PT21-87-108, PT21-87-108-000, NUDOCS 8708120058
Download: ML17300A974 (8)

Text

]7'j~Pce.lVED C'(3 4!RC RECQ Igdvstries, Inc.

June 16, 1987 7!h kiowas/IQ pfts~/p4-A/1 Box 25189, Richmond, Virginia 25260-5189 Telex 827-47K'nr rTe!eaopy 804/643-3561 United States Nuclear Regulatory Commission Region 5 1450 Maria Lane Suite 210 Walnut Creek, California 94596-5368 Attention: Mr. D. F. Kirsch

Reference:

Palo Verde Nuclear Generating Station Unit 3 Letdown Heat Exchanger Cracked Reactor Coolant Inlet Nozzle RECO Mfg. Serial No. N-2376 Bechtel Deficiency Report !md 86-29

Dear Mr. Kirsch:

Upon receipt and review of Bechtel DER o. 86-29, RECO initiated an investigation to accomplish the following:

l. Identify the total number of Letdown Heat Exchangers manufactured by RECO Industries, Inc., including the customer's name and the location to vhich they vere shipped.

2. Review final documentation packages to determine if there were any documented unusual circumstances which vould contribute to such a failure.

3. Determine what Corrective Action, if any, would be necessary to prevent ports~ a future recurrence.

Summary:

l. A total of fifteen (15) Letdown Heat Exchangers were identified as being manufactured by RECO Industries, Inc. A list identifying the RECO Job Numbers, Customers, Customer's Purchase Order Numbers, and location shipped is enclosed as a part of this re-

2. A review of the final documentation package for the reported items did not produce evidence of any unusual circumstances which would have contributed to such a fai$ ure.

g<oV g(0 A review of the docume ation packages for the other fourteen (14) items revealed that ere were several instances of dented tubes and dented edge preps on nozzles, which indicated improper hand-ling. All of these instances were handled and repaired in accord-ance with the established guality Assurance Procedures. None of the reported instances was of a serious nature, which would contribute to a failure of the type reported.

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Page 2 United States Nuclear Regulatory Commission June 16, 1987

3. RECO should take appropriate corrective action measures for improvement of handling the equipment during fabrication. This, however, is not appropriate at this time since RECO closed their nuclear fabrication facility in Richmond, VA at the end of 1986 and have turned in their ASME "N" Certificates.

While there is no evidence in our records, and subsequent inspection of the other .two units at the Palo Verde plant, to indicate that the type of'onditions reported on the Letdown Heat Exchanger at Palo Verde, Unit 3 exists on the other units. manufactured by RECO,, it is 'our recom-mendation that the utilities be notified and that they perform a visual examination of the inlet and outlet nozzles on these units during normal re-fueling operations.

If we can be of any further assistance please do not hesitate to call.

Very, truly yours, REC, INDUSTRIES, INC.

Q 8.4 Ronald E. Brooks Corporate QA Manager

/vm Encl.

CC: W. S. Point, Jr.

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RECO LET-DOWN HEAT EXCHANGER LIST JOB NO. CUSTOMER LOCATION P. 0. LYO.

N-2387 Combustion Engineering Boston Edison Co. 9603488 Pilgram '2 Gen. Sta.

N-2381 Combustion Engineering TVA 9603485 Yellow Creek-Unit 2 N-2380 Combustion Engineering Duke Power Co. 9602911 Project 81 Cherokee Unit 2 N-2376 Combustion Engineering Arizona Public Service 9773806 Palo Verde Gen. Sta.

Unit 3 N-2374 Combustion Engineering Duke Power Co 9602915 Project 81 Perkins Unit 2 N-2373 Combustion Engineering Arizona Public Service 9602914 Palo Verde Gen. Sta.

Unit 2

.N-2372 Combustion Engineering Duke Power Co. 9602918 Project 81 Cherokee Unit 1 N-2371 Combustion Engineering WPPSS Unit 5 9602910 N-2370 Combustion Engineering Arizona Public Service 9602912 Palo Verde Gen. Sta.

Unit 1 N-2369 Combustion Engineering WPPSS Unit 3 9602909 N-2284.10 Westinghouse Wolf Creek Gen. Sta. See Below Lebo, Kansas N-2284.20 Westinghouse Westinghouse See Below 4454 Genesee St.

Buffalo, N. Y. 425.

'N-2284.30 Westinghouse Callaway Gen. Sta. See Below Portland, lio.

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~ s' Page 2 JOB NO. CUSTOlKR LOCATION P. 0. NO.

N-2284.40 Westinghouse Westinghouse See Below 4454 Geeesee Buffalo, N'.

St. ~'P Y. '1422 N-2284.50 Westinghouse Callaway Gen. Sta. See Below

'Portland, 4~to.

P. 0. NO.

N-2284.10 546-CAZ-240541-BN N-2284.20 546-CAZ-240542-BH iN-2284.30 546-CAZ-240543-BN N-2284.40 546-CAZ-240544-BN N-2284.50 546-CAZ-240545-BH

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