ML20084J136
| ML20084J136 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 06/01/1995 |
| From: | Mccoy C GEORGIA POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LCV-0567, LCV-567, NUDOCS 9506060104 | |
| Download: ML20084J136 (10) | |
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' Georg;a Power Compar;y t.0 inverness Center Par **af Post O'tce aos 1295 D-tm.rygwn Alabama 35201 Te%hore 205 877 7122 L
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Vce Pres: dent, WrJear Vog% Propxt the souttem eisttrc system LCV-0567 Docket Nos.: 50-424, 50-425 U. S. Nuclear Regulatory Commission ATIN.: Document Control Desk Washington, D. C. 20555 Gentlemen:
VOGTLE ELECTRIC GENERATING PLANT RADIOGRAPHIC FILM PROJECT Beginning in Spring 1993 and continuing through the middle of December 1994, a radiographic (RT) film project was conducted at Georgia Power Company (GPC), Vogtle Electric Generating Plant, Units 1 and 2 (VEGP-1 and 2). The project was conducted with the intent oflocating and organizing the RT film for welds in the inservice inspection (ISI) programs for VEGP-1 and 2. Those particular welds were termed " critical" and were welds which were volumetrically examined during either preservice and/or inservice inspection activities. Benefits from the RT film project included tN Y'owing:
Organization of RT film (including indexing of the " critical" RT film, interleaving of the film with acid-free paper, and transfer to archival quality, acid-free boxes),
Plant Records management would be aware of any deterioration problems concerning the " critical" RT film in the vault, and Providing immediate access to RT film required to evaluate any reportable volumetric examination indications which might be observed during maintenance / refueling outages or any other time, thus eliminating potential critical path time searching for the RT film.
In addition to indexing the " critical" RT film, a deterioration evaluation of the subject RT film was performed.
9506060104 950601 PDR ADOCK 05000424 f
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e GeorgiaPower d U. S. Nuclear Regulatory Commission LCV-0567 Page Two Generally speaking, the effort to locate and organize the " critical" RT film for VEGP-1 and 2 was successful. Approximately 75,000 pieces of" critical" RT film were indexed.
Slightly over ninety-eight percent of the RT film or reader sheets for the " critical" film was located Although the RT film project was generally considered to be successful, neither the RT fdm nor the RT film reader sheets for twenty-three (23) ASME Code Class 1 and 2 welds which we termed to be " critical" were able to be located during this effort. In addition, only the RT film reader sheets were able to be located for twenty (20) other
" critical" welds whose RT film could not be located. It should be noted that Article NA-4000 of the versions of ASME Section III to which the components at VEGP-1 and 2 were constructed, i.e., the 1971 or 1974 version dependent upon the component involved, requires that all RT film be retained. Ilowever, over the years ASME Section III was revised and now requires that only RT film be retained for those components as specified by the plant owner in the plant's inservice inspection program (ref.: Table NCA-4134.17-1 of ASME Section 111,1989 Edition). Enclosure I to this letter identifies the 23 " critical" welds having either outstanding RT film or RT film reader sheets. Enclosure 2 identifies the 20 " critical" welds without RT film where only the RT film reader sheets were located.
While the " critical" welds without RT film might be able to be re-radiographed, this is not deemed practical for several reasons. First, the afTected welds have been insersice and, obviously, are no longer in a "preservice" state. Second, any new RT performed would require a different technique for performing the radiograph, i.e., a " double wall shot" since the component's interior is not accessible vice a " single wall shot" where the component's interior is accessible such as during the original plant construction. Regardless of the reasons cited above, an unfair comparison would result were the welds to be re-radiographed. Although RT film and/or RT film reader sheets have not been located for the alrected " critical" welds, volumetric examination data, i.e., ultrasonic examination data, taken during either preservice and/or inservice inspection activitics exists for the welds in question.
it is our belief that the outstanding RT film or RT film reader sheets for the " critical" welds are neither a question of quality nor safety but is one of recordkeeping. As a result, no special efforts will be made to locate the outstanding RT film or RT film reader sheets for the affected " critical" welds except for those efTorts expended during normal day-to-day operation. GPC is submitting this correspondence to the NRC strictly for informational purposes and no action is being requested of the NRC as a result.
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GeorgiaPower d U. S. Nuclear Regulatory Commission LCV-0567 Page Three Should there be any questions in this regard, please contact this office at your earliest convenience.
Sincerely, C. K. hicCoy CKM/JAE/jac
Enclosures:
- 1. List of VEGP-1 and 2 Piping / Component " Critical" Welds Without Either RT Film or RT Film Reader Sheets
- 2. List of VEGP-1 and 2 Piping " Critical" Welds Without RT Film Where Only RT Reader Sheets Were Located xc: QqoIgia Power Company hir. J. B. Beasley, Jr.
hir. W. L. Burmeister Mr. M. Sheibani NORMS U. S Nuclear Regulatory Commission Mr. S. D. Ebneter, Regional Administrator Mr. D. S. Ilood, Licensing Project Manager, NRR Mr. B. R. Bonser, Senior Resident Inspector, Vogtle i
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ENCLOSUREl TO GEORGIA POWER COMPANY L.ETTER LCV-0567,
" RADIOGRAPHIC FILM PROJECT" Vogtle Electric Generating Plant, Units 1 and 2 NRC Docket Nos. 50-424,50-425 The following are the twenty-three (23) Vogtle Electric Generating Plant, Units 1 and 2 (VEGP-1, VEGP-2)" critical" welds where neither the RT film nor RT film reader sheets have been located:
Weld Description ASME Code Class Plant System I 1201-V6-002-W16 Pressurizer 14" 1
Reactor Coolant Surge Nozzle-to-System (RCS) i Shell Weld 11201-002-2 6" Branch 1
RCS Connection Weld i1201-002-3 29" Pipe-to-Elbow 1
RCS Weld i1201 003-3 29" Pipe-to-Elbow 1
RCS Weld i 1201-86-004-W26 Steam Generator 6" 2
RCS Auxiliary Feedwater Nozzle-to-Shell Weld i
11208-E6-001-WO2 Regenerative fleat 2
Chemical and Exchanger (Regen Volume Control lix) Tube Sheet-to-System (CVCS)
Shell Weld 11208-E6-001-WO4 Regen Hx 2
CVCS Reinforcing Collar-to-Main Shell Weld El-1
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ENCLOSURE 1 TO GEORGIA POWER COMPANY LETTER I
LCV-0567,
" RADIOGRAPHIC FILM PROJECT" Vogtle Electric Generating Plant, Units 1 and 2 NRC Docket Nos. 50-424,50-425 (continued)
VEGP-1 (continued)
LSI Wdd No.
Weld Description ASME Code Class Plant System i 1208-E6-001-WO7 Regen Hx Main 2
CVCS i
Shell-to-Reinforemg Collar Weld l
l 11208-E6-007-WO3 Letdown Reheat 2
CVCS Heat Exchanger (Hx) Vessel Flange-to-Vessel Shell Weld 11208-E6-007-WO6 Letdown Reheat Hx 2
CVCS Vessel Head-to-Vessel Shell Weld 11208-V4-002-W01 Discharge 2
CVCS l
Dampener Hemi-llead-to-Hemi-Head Weld 11204-039-2 8" Pipe-to-Elbow 2
Safety Injection (SI)
Weld Sys: 'm 11204-039-58 6" Pipe-to-Valve 2
SI Weld i1204-197-1 4" Valve-to-Pipe 2
ENCLOSURE 1 TO GEORGIA POWER COMPAN'i LLTTER LCV-0567,
" RADIOGRAPHIC FILM PROJECT" Vogtle Electric Generating Plant, Units 1 and 2 NRC Docket Nos. 50-424,50-425 (continued)
VEGP-1 (continued)
Weld Description ASME Code Class PIant System L
11302-107-8 6" Pipe-to-Valve 2
Auxiliary Feedwater Weld (AFW) System 11302-109-13 Penetration-to-6" 2
AFW Pipe Weld 11305-060-23 16" Pipe-to-Nozzle 2
Condensate and Weld Feedwater System TOTAL NUMBER OF VEGP-1 " CRITICAL" WELDS WITHOUT EITHER RT FILM OR RT FILM READER SiiEETS : 17 (CLASS 1! 4 WELDS, CLASS 2: 13 WELDS).
_Y_FSP3 ISI Welci No.
Weld Descriplinn ASME Code Class Plant System 2120 5I6-001-WO4 Regen Hx 2
CVCS Reinforcing Collar-to-Main Shell Weld 21208-E6-001-WO7 Regen Hx Main 2
CVCS Shell-to-Reinforcing Collar Weld 21208-E6-007-WO3 Letdown Reheat Hx 2
CVCS Vessel Flange-to-Vessel Shell Weld El-3 l
4-ENCLOSURE 1 I
TO GEORGIA POWER COMPANY LETTER LCV-0567,
" RADIOGRAPHIC FILM PROJECT" Vogtle Electric Generating Plant, Units 1 and 2 NRC Docket Nos. 50-424,50-425 (continued)
VEGP-2 (continued) j
[SI Weld No.
Weld Description ASME Code Class Plant System 21208-007-WO6 Letdown Reheat Hx 2
CVCS Vessel Head-to-Vessel Shell Weld 21208-V4-001-W01 Suction Dampener 2
CVCS Vessel Head-to-Vessel Shell Weld 21208-V4-001-WO2 Suction Dampener 2
CVCS Vessel Shell-to-Vessel Head Weld TOTAL NUMBER OF VEGP-2 " CRITICAL" WELDS WITHOUT EITHER RT FILM l
OR RT FILM READER SHEETS: 6 (CLASS 1: 0, CLASS 2: 6).
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t ENCLOSURE 2 TO GEORGIA POWER COMPANY LETTER LCV-0567,
" RADIOGRAPHIC FILM PROJECT" Vogtle Electri.: Generating Plant, Units I and 2 NRC Docket Nos. 50-424,50-425 The following are the twenty (20) Vogtle Electric Generating Plant, Units 1 and 2 (VEGP-1, VEGP-2)" critical" welds without RT film where only the RT film reader sheets were able to be located:
VEGP-1 IS.I Weld No.
Weld Description ASME Code Class Plant System 11204-020-07A 8" Pipe-to-Pipe 2
Safety Injection (SI)
Weld System 11204-025-13 6" Reducer-to-Pipe 1
SI Weld 11204-025-14 6" Pipe-to-Elbow 1
11204-025-15 6" Elbow-to-Pipe 1
SI Weld 11204-025-16 6" Pipe-to-Elbow 1
SI Weld 11204-025-17 6" Elbow-to-Pipe 1
SI Weld 11204-039-22 8" Pipe-to-Elbow 2
SI Weld 11208-145-16 4" Pipe-to-Valve 2*
Chemical and Weld Volume Control System (CVCS)
- Augmented examination.
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A ENCLOSURE 2 '
TO GEORGIA POWER COMPANY LETTER LCV-0567,
" RADIOGRAPHIC FILM PROJECT" t
Vogtle Electric Generating Plant, Units 1 and 2 NRC Docket Nos. 50-424,50-425 (continued)
VEGP-1 (continu_gst)
TOTAL NUMBER OF VEGP-1 " CRITICAL" WELDS WITHOUT RT FILM WHERE ONLY THE RT FILM READER SHEETS WERE ABLE TO BE LOCATED: 8 (CLASS 1: 5, CLASS 2: 2, CLASS 2 A'UGMENTED: 1).
Weld Desgiption ASME Code Class Plant System 4
21201-029-32 4" Pipe-to-Elbow 1
Reactor Coolant Weld System (RCS) 21202-218-17 6" Pipe-to-Elbow 2*
Nuclear Service Weld Cooling Water (NSCW) System 21202-218-18 6" Elbow-to-Pipe 2*
21202-218-19 6" Pipe-to-Flange 2*
NSCW Weld 21204-006-54 24" Pipe-to-Elbow 2*
Safety Injection (SI)
Weld System 21204-006-55 24" Elbow-to-Pipe 2*
21204-127-7 10" Pipe-to-Valve 1
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ENCLOSURE 2 TO GEORGIA POWER COMPANY LETTER LCV-0567,
" RADIOGRAPHIC FILM PROJECT" Vogtle Electric Generating Plant, Units 1 and 2 NRC Docket Nos. 50-424,50-425 (continued)
VEGP-2 (continued)
Weld Description ASME Code Class Plant System 21205-003-27 14" Pipe-to-Tee 2*
Residual Heat Weld Removal (RHR)
System 21208-022-29C 3" Swage-to-Pipe 2*
CVCS Weld 21208-023-37 2" Pipe-to-Elbow 2*
CVCS Weld 21301-003-11 Valve-to-29-1/2" 2
Main Steam (MS)
Pipe Weld System 21301-107-13 Penetration-to-6" 2
MS Pipe Weld
- Augmented examination.
TOTAL NUMBER OF VEGP-2 " CRITICAL" WELDS WITHOUT RT FILM WHERE ONLY THE RT FILM READER SilEETS WERE ABLE TO BE LOCATED: 12 (CLASS 1: 2, CLASS 2: 2, CLASS 2 AUGMENTED: 8).
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