HL-2071, Forwards Owners Data Rept for Inservice Insp Ei Hatch Nuclear Plant Unit 1,Sept-Nov 1991

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Forwards Owners Data Rept for Inservice Insp Ei Hatch Nuclear Plant Unit 1,Sept-Nov 1991
ML20090B781
Person / Time
Site: Hatch Southern Nuclear icon.png
Issue date: 02/26/1992
From: Beckham J
GEORGIA POWER CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20090B784 List:
References
HL-2071, NUDOCS 9203040064
Download: ML20090B781 (2)


Text

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l HL-2071 l 003002 l February 20, 1992 U.S. Nuclear Regulatory Commission AITN: Document Control Desk Washington, D.C. 20555 PLANT HATCH - UNIT 1  !

NRC DOCKET 50-321 l OPERATING LICENSE DPR-57 INSERVICE INSPECTION ASSOCIATED WITH THE FALL 1991 MAINTENat(CE/ REFUELING OUTAGE Gentlemen:

Pursuant to the requirements of Article IWA-6000 of the ASME Code,Section XI, enclosed for your review is the Owner's Data Report for Inservice Inspection (Form NIS-1) for the inservice inspection activities conducted at Plant Hatch Unit I during the fall 1991 maintenance / refueling outage. The Owner's Dr.ta Report is included as Enclosure 1.

Georgia Power Company (GPC) has performed several inspections not specifically required by ASME Code.Section XI, on selected Class 1, 2, and 3 components. The results of the Code and augmented inspections performed at Unit I are summarized below and reported in the Owner's Data Report.

o Ultrasonic examinations of austenitic stainless steel piping welds in the primary coolant pressure boundary per Generic letter 88-01 and NUREG-0313, Revision 2. Results are discussed in the Enclosure under

" Class 1 Examinations." A detailed report on flaw evaluations and weld overlay designs was submitted to the NRC via letter dated January 21, 1992.

o Ultrasonic examinations of eight (8) welds in the nonsafety-related portion of the reactor water cleanup (RWCU) piping were performed per commitments to the NRC related to Generic Letter 88-01. No reportable indications were detected, o Ultrasonic thickness measurements were performed on selected components in the extraction steam and condensate /feedwater system piping per GPC's ongoing erosion / corrosion program. A portion of these components were selected due to their similarity in design and operating conditions to components involved with the "Surry pipe break incident".

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Geolgia powerkh U.S. Nuclear Regulatory Commission February 26, 1992 Page lwo j o Eddy current testing was performed on several feedwater heaters, Diesel Generator lA & 10 coolers, and motor generator "A" air cooler.

o The core spray sparger and associated piping was visually examined per Bulletin 80-13. No reportable indications were detected.

o One shroud support access hole cover weld was ultrasonically examined per GE Sil-462. No reportable indications were detected. l 1

If you have ...y questions in this regard, please contact this office at any time.

Sincerely.

b J. 1. Beckham, Jr.

SRM/ld 003002

Enclosure:

Owner's Data report for Inservice Inspection - Edwin 1. Hatch Nuclear Plant Unit 1 - September 1991 - November 1991 cc: Genra10_20Rr__C0ERADY Mr. H. L. Sumner, General Manager - Nuclear Plant NORMS Hg1 ear Reaulatory Comminiga,_Washinaionm(LL Mr. K. Jabbour, licensing Project Manager - Hatch U.S. Nqclear Reaulatory Commission Mr. S. D. Ebneter. Regional Administrator Mr. L. D. Wert, Senior Resident - Hatch

References:

1. Letter, J. T. Beckham to NRC, IGSCC flaw Evaluations and Weld Overlay Designs Unit 1, fall 1991 Maintenance and Refueling Outage, HL-2000, Dated January 21, 1992.

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