ML20273A108
| ML20273A108 | |
| Person / Time | |
|---|---|
| Site: | 07109798 |
| Issue date: | 09/17/2020 |
| From: | Pratt R US Dept of Energy, National Nuclear Security Admin |
| To: | John Lubinski Office of Nuclear Material Safety and Safeguards |
| WCAllen NMSS/DFM/STL 301.415.6877 | |
| References | |
| G#C20-03655 | |
| Download: ML20273A108 (3) | |
Text
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DEPARTMENTOF ENERGY
=====-
wasuinaronoc assestoon NR:RR:JHKampen G#C20-03655 September 17,2020 Unciassified upon removal ofEnclosure(1).
JohnLubinski
- Director, Office ofNuclearMaterial SafetyandSafeguards Nuclear Regulatory Commission Washington, DC20555 D2WPOWERUNITINTHED2GPOWER UNIT SHIPPINGCONTAINER-SAFETY ANALYSIS REPORTFORPACKAGING; REQUEST FORNUCLEAR REGULATORY COMMISSION REVIEW ANDCONCURRENCE (U)
Background:
D2Wpowerunits werepreviously shipped fromthecore vendor totheshipyards inthe Model D2Gpowerunit shipping container (PUSC) under Certificate ofCompliance (CoC) numberUSA/6441/B(
)F.
TheD2GPUSCwasused between 1969and2008to transport D2Gshipboard, D2WPrototype, andD2Wshipboard power units.
TheNaval Reactors Program had13D2GPUSCswhichmadeanaverage of 36shipments each.
WhenTitle 10,CodeofFederal Regulations, Part 71(10CFR71) was revised in2004, grandfathering provisions forlegacy TypeBcontainers (including theD2G PUSC) were added that required submitting analyses todemonstrate that thepackage meets revised 10CFR71 requirements orretiring thepackage fromservice byOctober 1,2008.
Because there wasnoplanned usefortheD2GPUSCafter
- 2008, andsignificant effort wouldberequired todemonstrate compliance torevised 10CFR71 requirements, Naval Reactors approved letting boththeDOE-NRandNuclear Regulatory Commission (NRC) certificates ofcompliance fortheD2GPUSCexpire.
TheNavyrecently identified that seven LOSANGELES Class submarines areplanned toberefueled with D2Wpowerunits.
Discussion:
Tosupport powerunit shipments using theD2GPUSCforD2Wrefuelings, theNaval Reactors Program hasprepared anaddendum totheoriginal Safety Analysis Report for Packaging (SARP) forD2Wunits intheD2GPUSC.TheSARPaddendum hasbeen prepared inaccordance with theoutline provided inNRCRegulatory Guide7.9.
The SARPaddendum demonstrates compliance ofthepackage withtherequirements of 10CFR71 byinvoking specific analyses fromtheoriginal SARPandproviding additional
2 NR:RR:JHKampen G#C20-03655 analyses asappropriate toaddress requirements in10CFR71 that changed after the package was originally certified.
inthis way,theSARPaddendum constitutes a
completeSARP demonstrating compliance with 10CFR71 andforms thebasis fora newapplication for aCoC.Naval Reactors (R.
- Pratt, J.Kampen) discussed this certification strategy withtheNRC(B.
- White, J.Smith, J.Piotter) onApril 3,2019.
Enclosure (1) contains the D2Wpowerunit intheD2GPUSCSARP.Naval Reactors considers that the SARP demonstrates package compliance with therequirements of 10CFR71 Request forAction:
TheNRC is requested toreview andconcur with theD2Wpower unit intheD2GPUSCSARP,transmitted viaEnclosure(1) ofthis letter.
Enclosure (2)
- provides, forinformation, thedraftDepartment ofEnergy(DOE)
CoC,Revision 0,for theD2Wpowerunit intheD2GPUSC SARP. Tosupport theplanned D2Wpowerunit shipments, Naval Reactors appreciatesreceiving anyinitial commentsontheSARPby March 2021Final concurrence bySeptember 2021 would begreatly appreciated.
If youhaveanyquestions, please donothesitate to callmeat(202) 781-6712.
PRATT.ROY.Gil
$9faHg9gg, BERT.Ill.110705 07053570 3570 DO 00P" R.G.Pratt Naval Reactors
Enclosure:
(1)
D2WPOWERUNITINTHED2GPOWERUNIT SHIPPING CONTAINER SAFETYANALYSIS REPORT FORPACKAGING (2)
DOENRCERTIFICATE OFCOMPLIANCE FORTHED2WPOWER UNITINTHED2GPOWERUNITSHIPPING CONTAINER, USA/XXXX/B(U)F-96 REVISION 0(DRAFT)
Copyto(next page).
3 NR:RR:JHKampen G#C20-03655 Copy to (*= without Enclosure (1)):
KAPLADSARS*
A.Kock,
- Director, Division ofFuelManagement, Office ofNuclear Materials Safety and Safeguards, NRC J.McKirgan, Chief, Storage andTransportation Licensing
- Branch, DFM,NMSS,NRC B.White, Senior Project
- Manager, STLB,DFM,NMSS,NRC G.Lubinsky, General
- Manager, NNL*
V.Pantioni,
- Manager, Reactor Servicing, NNL*
M.Drewen,
- Manager, ReactorServicing Systems, RS,NNL*
S.Fiscus,
- Manager, Shipping Containers, RSS,RS,NNL*
J.Graybill,
- Manager, M-290 Designand Analysis, SC,RSS,RS,NNL*
NRLFO*