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APPENDIX A I
MMGEN/MEDDCO METALS ALLEGATIONS INVESTIGATION Materials Reinspection Program Plan February 23,1984 Pocific Gas and Electric Company 77 Beale Street Son Francisco, Californio 94106 e
0603310019 860123 PDR FOIA Py DEVINE84-744 -.. -.. - -... -. -
APPENDfX A
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1.0 NTRODUCTION This document presents the expanded investigation program of the Bostrom-Bergen/Meddco Metals (BB/MM) ollegations prepared by Pocific Gas,ond Electric (PGondE). This program is consistent with the commitment to perform reinspection of a logical representative sompte of BB/MM supplied materials mode to the U. S. Nuclear Regulatory Commission (NRC) Region V Staff on Thursday, February 16,1984, and will be integrated into the existing investigation initiated in December 1983.
i The objective of this program is to provide additional confirmation that BB/MM-supplied items meet requisite quality stondords (refer to porograph 2.5) by performing field reinspections. A further objective of the program is to provide this information through a well thought-out plan which leads to o logical representative sampling program.
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l Bostrom-Bergen/Meddco Metals Allegations investigation Materials Reinspection Program Plan Dated: February 23,1984 -._
APPENDIX A 2.0 SCOPE This scope consists of the following eight tasks 'which will assure that a satisfoctory reinspection program is performed.
2.1 The first task is to finalize the identification of the scope of materials supplied to the Diablo Canyon Power Plant (DCPP) by BB/MM. This requires review of BB/MM-supplied structural items for all periods of interest and will be accomplished of the DCPP site. The information that will be gathered in this task will be based on the lists cf BB/MM material used at DCPP as shown in Attochments A and B. The iists include all major pieces shown on the BB/MM shop drawings, i
2.2 The second fosk is to define key chorocter:stics (those chorocteristics which determine the rronner in which BB/MM item grouping occurs) related to the different types of items supplied by BB/MM. These will include:
o Material Type o
Generic item Description o
Safety Classification o
Time Frome of Fabrication 2.3 ' Th'e results shown in Attochments A and B, which represent all major BB/MM items supplied to DCPP, will be molyzed and grouped into generic item categories. This grouping will assure that the items are identified in terms of the components, materials and time frames of supply. In this way, a basis for a logical representative somph selection will ofready be established.
2.4 Upon completion of the categorization, logical sample groups for reinspection will be determined to assure a representative reinspection across the population of BB/MM-supplied items and will provide assurance that PGondE has on indication of the quality of the BB/MM iter 6s.
Emphasis in selecting items for inspection will be placed on (1) confirming that BB/MM supplied special steels were used at locations where they were required, and (2), confirming that special fabrication techniques performed by BB/MM (e.g.,
welding) were odequately performed. Selection of individual items for inspection will be mode to cover os brood a time frame os possible. In summary, the total quantity of items to be inspected is large enough te encompass material used in all safety-related applicottons over the periods e terest for BB/MM material supplied to Diablo Canyon.
Bostrom-Bergen/Meddco Metals Allegations lovestigation Materials Reinspection Program Plan Dated: February 23,1984 L.
APPENDIX A Several BB/MM-supplied materials have been reinspected in great detail. These are identified in Attachment C and will be incorporated into the program.
2.5 Fleid inspections will be performed to provide assurance that the existing materials meet specified requirements. Inspection of sampled items will cover two general areas:
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Conformance of BB/MM materials to design and -specification requirements.
2.
Conformance of BB/MM fabrication to acceptable proctices ed to design drawing requirements.
2.5.1 Inspections of BB/MM material will include:
a.
Hordness testing to confirm the tensile strength of the base material. A form similar to Attochment D will be used for this inspection.
b.
Alloy analysis to confirm the content of specified chemical elements in the base material. A form similar to Attachment E will be used for this inspection.
2.5.2 Inspections of BB/MM fabrication will include:
a.
Visual examination, per AWS criteria, for weld quality and dimensionc! verification of weld sizes and base metal thicknesses. A form similar to Attachment F will be used for this inspection.
b.
Measurement of critical dimensions and visual examination of overall conformance to design drawing requirement.
2.6 A final report ' will be prepared upon completion of the BB/MM materials reinspection program, documenting each of the tasks performed and fully explaining BB/MM grouping and how the samples were selected. The final results and conclusions will be fully docu,mented and submitted to the NRC.
Bostrom-Bergen/Meddco Metals Allegations investigation Materials Reinspection Program Plan Dated: For,ruary 23,1984
APPENDIX A ATTACHMENT A MATERIAL StPPLIED BY BOSTROM-BERGEN METAL PRCOdCTS e
TO GUY F. ATKINSON COMPANY TutBE PEDESTAL Anchor bolts, embed plates, jocking posts, edge angles.
TutBE BUILDING Column anchor bolts, pump and motor anchor bolts, roof corners, all edge angles, embed plates, stair nosings, post sockets, monoroll beams, hatch cover frames, hatch cover seats, lodder rungs, supports for metal decks, lifting inserts, CCWHE pipe support column anchor bolts, leveling plates for switch gear, freight elevator enclosures, anchor plates for blockwalls, blockwall support columns Area A, floor opening sleeves, (5) line firewall albi-clad frame, fire damper frames Area A.
CCW heat exchanger barrier, pipe rupture restraints. Oil receiving and storoge room roof and monoroll support, odded structural steel El.119'2",
expansion joint between turbine building and auxiliary L
building spring support beams.
Area B-C, El. 140',
platform P-17T, PIST (Turbine feedwater pump).
AUXLIARY BUN 7 Embed plates, anchor bolts for pumps and motors, edge angles, hatch frames and seats, lifting inserts, pipe rupture restraints, monoroll supports, wire mesh doors -
sodium iodide protector shield, all CVCS embeds removoble shield walls and plates, seismic restroint for residual heat exchanger, senscr probe embed.
Main steam relief stock platform and brocing.
Jet impingement structural steel.
CONTAINMENT Rupture restroint onchor bolts, reactor head storoge embed, polar crone roll, fon cooler embed frames, pressurizer shield, fuel transfer tube shield and hoist, reactor loop pipe restraints, Jib crane, feedwater restroints, monipulator crone rail support, steam generator monway cover hoist, grating El.140' and beams, cable support El.140'. Rec. sump screens.
Pipe sleeves for penetrations, embed plates, soldier beams and cover plates at exterior penetrations, anchor.
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APPENDTX A ATTACHMENT A(continued)
MATERIAL SL.PPLIED BY BOSTROM aERGEN METAL PRODUCTS TO GUY F. ATKINSON COMPANY bolts, stair nosings, post sockets, neutron detector guides and positioning device, edge angles, hotch frames and seats, annulus structure support onchors, reactor support and cooling block, transfer canal shield plates.
General onchor bolts at El. 91',109', l 12', RCP support anchor bolts, hydroulic support structure anchors. RCP cross over pipe rupture restroint embeds, Steam Generator supports at 138, pipe restraint sleeves, pipeway support embeds, reactor missile shield.
Vorloble spring pipe support - equipment batch trolley and rails - personnel hatch trolley and rail, onnulus 106, incore trolley beams, RV head corriers, embedded air ducts to reactor.
DIESEL GEFERATORS Anchor bolts, embed plates for wall onchors - edge angles - exhaust pipe restraints at El.189 and 202.
Tornado barriers.
DISCHARGE STRUCTURE Miscellaneous embedded steel.
WATER tab 4<S Foundation anchor plates (rings).
FLEL HAMX.ING BUILDING Filter bank occess platforms - portition walls and movable walls - rodiation shield walls - filter bank embed frames - oil embeds. Boiler support beams - cir tight door frames - monipulator crane rail supports -
duct supports El.180', cols. i nd t rocing line 263 - fan platforms 21 and 22 - fuel storoge cover - Auxiliary feedwater pump missile shield - voeuum deoerotor tower support.
PLATFORMS 48FW-2' 42FW-1, 48FW-l, 7CE-1, 19GW-l, SGW-1, 6CE-1, 7G-1, 77G-2, 86F-2, 42FW-2, 67F-2, 71 G-2, 82F-2, 83F-2, 70G-2, 64F-2, 76F-2, 20GW-l, 54F-2, 55F-2, 57G-2, 56G-2,19GW-2, 20GW-2, 21 GW-2,108F-1, 109G-1, 21 G W-l, 66F-2, 63 F-2, 85F-2, 8 l F-2, 5F W-l,
8GW-1, 8GW-2, 65F-2, 63F-1, 76F-l, 77G-1, 94F-1, 68G-2, 69C-2, 70G-2, SGW-2, 6GE-2, 7CE-2, 65F-1, 64F-1, 84F-2.
APPENDIX A ATTACHMENTB BOSTROM-BERGEN METAL PRODUCTS SUPPLIED TO H. P. FOLEY AUXILIARY BUILDING Rolling door 12" thick, rodiction shield door, edge angles for post-LOCA.
COPOENSATE POLISHING SYSTEM Column onchor plates, beam onchor plates, structural framing, floor plates and supports, roof framing, stairways.
i TECFNICAL SLPPORT CENTER None, access provided via condensate polishing structural steel and stairways.
FIEL HAPOLING BUILDING Gross gomma monitor support plotform.
REVERSE OSMOSIS Anchor bolts, curb angles, structural framing, stairways.
TRAINING BUILDING Structural foundation and stairway.
l TURBIPE BUILDING Storoge rock.
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APPENDIX A ATTACHMENT C PREVIOUSLY INSPECTED ITEMS Time Period item Description Remarks 1984 Rupture Restraint Rods inspected overall length threads, bend radius, and straightness for 19 rods 1983/1984 Rupture Restraint Rods Tested hardness for 842 rods 1984 Condensate Polishing System Full weld inspection 940 BB/MM (Class 2)
(shop welds) l l
1983 Rupture Restraint Welds-Full weld inspection on 351 restroint welds.
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APPENDIX A ATTACHMENT D.
MATERIAL VERFICATM)N REPORT sevene omece s..A osse r
suppein Lacetion Motoriol Type and Brievell Tensile Canoensat ommeription Piece temdwr Grade need W W Acce6ted Rejected t
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APPENDIX A ATTACHMENT F IB/MM WELD NSPECTION REPORT Wit Area Elevation Sergie Lacetion Drowing ed Revision e
Piece No.
Erection Drowing bupsetion Accept Meject inopoetion Dete Crocks Convexity Fusion Reinforcement Undercut Craters Filled Porosity Free of Slog Weld Length Specing Weld Size Comments:
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Dates
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