Text

Redacted - Susquehanna, Units 1 and 2 - Submittal of 10 CFR 71.95 Report Regarding Energy Solutions 8-120B Cask Certificate of Compliance 9168
	ML15342A134
Person / Time
Site:	Susquehanna, 07109168
Issue date:	11/19/2015
From:	Franke J; Susquehanna, Talen Energy
To:	; Document Control Desk, NRC/NMSS/SFPO
Shared Package
ML15342A137	List: PLA-7414, Redacted - Susquehanna, Units 1 and 2 - Submittal of 10 CFR 71.95 Report Regarding Energy Solutions 8-120B Cask Certificate of Compliance 9168;
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TALEN~

Jon A. Franke Susquehanna Nuclear, LLC Site Vice President 769 Salem Boulevard Berwick, PA 18603 Tel. 570.542.2904 Fax 570.542.1504 jon.franke@talenenergy.com ENERGY NOV 1 9 2015 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Director, Spent Fuel Project Office Office of Nuclear Material Safety and Safeguards Washington, D.C. 20555-0001 SUSQUEHANNA STEAM ELECTRIC STATION 10 CFR 71.95 REPORT REGARDING ENERGY SOLUTIONS 8-120B CASK CERTIFICATE OF COMPLIANCE 9168 Docket Nos. 50-387 PLA-7414 and 50-388 Susquehanna Nuclear, LLC hereby submits the attached report in accordance with 10 CFR 71.95(a)(3). Licensees are required to submit a report regarding the instances in which the conditions of approval in the Certificate of Compliance for the 8-120B Cask (Certificate of Compliance #9168) were not observed when making a shipment. The circumstances regarding the need to submit this report are described in Energy Solutions Repmt, ES-CD-0-15-006, dated September 21, 2015 (Enclosure 1).

Susquehanna Nuclear, LLC has made one (1) shipment with an affected cask (number 8-120B-6) during the affected period as described in the Energy Solutions report.

Information regarding the one shipment made by Susquehanna Nuclear, LLC is included in Enclosure 2 to this letter.

If you have any questions regarding this letter, please contact Mr. Jeffery N. Grisewood, Manager, Nuclear Regulatory Affairs, at (570) 542-1330.

This letter contains no new regulatory commitments.

J. A. Franke ) Energy Solutions Repo11, ES-CD-0-15-006, dated September 21, 2015 ) List of Susquehanna Nuclear, LLC Shipments Using the Affected Energy Solutions 8-120B Cask

Document Control Desk PLA-7414 Copy: Mr. J. E. Greives, NRC Sr. Resident Inspector Ms. T. E. Hood, NRC Project Manager Mr. D. E. Jackson, NRC Region I Mr. M. Shields, PA DEP/BRP

Enclosure 1 to PLA-7414 Energy Solutions Report ES-CD-0-2015-006, dated September 21, 2015

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==========ENERGYSOLUTIONS==========

September 21, 2015 Letter ID: ES-CD-0-2015-006

Subject:

10 CFR 71.95 notification associated with the failure to observe Ce1iificate of Compliance condition of the 8-120B secondary lid test pmi configuration.

Dear Valued Customer:

During a recent NRC audit performed September 8-10, 2015 assessing implementation of EnergySolutions' 10CFR71 program at our Columbia, SC and Bamwell, SC facilities, the NRC inspection team identified that four out of eight 8-120B secondary lids (Subject Secondary Lid ID numbers 8-120B-5, -6, -7 and -8) did not comply with approved 8-120B SAR drawings referenced in the current revision of the Celiificate of Compliance 9168 (CoC).

The subject secondary lids were fabricated with a cladding tube inside the test pmi hole, but the tube is not shown on the SAR licensing drawings referenced by the CoC. Based on this, the conditions of approval in the CoC were not observed for any Type B shipments of radioactive material made in 8-120B casks utilizing the subject secondary lids. Subject secondary lids were entered into service between October - December, 2014 and have been used for a total of 52 shipments by licensees. The condition was detennined not to have a safety consequence because the as-built test volumes with tubes installed in subject secondary lids met the basis for the pre-shipment leak rate test hold time.

Although, cladding tubes were pa1i of the original NRC approved cask configuration in the old 8-120B secondary lids (used before August 31, 2013), they were inadve1iently omitted in the new secondary lids design entered into service in September, 2013. Due to this condition, EnergySolutions suspended the use of the 8-120B casks with subject secondary lids. Fmiher, EnergySolutions, on September 16, 2015, submitted a CoC amendment request to NRC requesting authorized usage of the subject secondary lids. EnergySolutions will retrofit all 8-120B secondary lids with the tube design at the earliest oppmiunity. We expect that the NRC will grant a new CoC (Rev.22) shmily and the use of the affected 8-120B casks with subject secondary lids will resume. All our 8-120B users will be provided with a separate notification and an updated 8-120B cask book which will clarify the status of the affected CoC that the 8-120B casks can operate under.

Please see EnergySolutions' attached repmi containing the information required by 10 CFR 71.95. In the repmi, EnergySolutions describes the cause of the occurrence and provides infmmation that suppmis that there is no safety significance associated with this condition.

We expect that the infmmation required for individual users to make their own notifications is contained within this repmi. Reference to this repmi in individual user repmis is appropriate, if you so choose.

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================ENERGYSOLUTIONS ==============~

We sincerely apologize for any inconvenience this issue may have caused within your organization. Our corrective actions as a result of this issue are intended to prevent recurrence of similar issues and to ensure the highest quality of products and services that we provide.

For additional details, please contact Aleksandr Gelfond at axgelfond@energysolutions.com or 803-587- 9117.

Sincerely, MarkS. Lewis General Manager, Cask Logistics Logistics, Processing and Disposal EnergySolutions, LLC Attachment 1: EnergySolutions' Report associated with Failure to Observe Certificate of Compliance Conditions for the 8-120B Secondary Lid Test Port Configuration (4 pages) cc: Dan Shum (EnergySolutions) cc: Aleksandr Gelfond (EnergySolutions) 2

Failure to Observe Certificate of Compliance Conditions for the 8-120B Secondary Lid Test Port Configuration September 18, 2015

1) Abstract During a recent NRC inspection ofEnergySolutions' facility in Columbia, SC, the inspection team identified that the secondary lids of four 8-120B casks 1 did not comply with the approved SAR drawings referenced by the latest revision of the Cetiificate of Compliance 9168 (CoC). The secondary lids on the subject casks were fabricated with a cladding tube inside the test pmi hole, but the tube is not shown on the SAR drawing referenced by the Co C. The conditions of approval in the CoC were therefore not observed for any shipments of Type B quantities of radioactive material made using the subject secondary lids.

Attachment 1 illustrates the secondary lid test pmi and tube configurations.

The purpose of the secondary lid test port tube is to isolate the pre-shipment test volume from the interspace between the two 3 1/4" thick plates that make up the secondary lid. The isolation of the test volume provided by the tube assures that the test volume does not exceed the limit on which the hold time for the pre-shipment leak rate test is based. However, if the free volume in the interspace between the plates is negligible, then the isolation function of the tube is not necessary.

The tube was shown as a design feature in the 8-120B SAR drawings referenced by Revision 17 of the CoC, and previous revisions, but the tube was not credited with any safety function in the SAR. The tube was inadvetiently omitted when the lids were redesigned for operational enhancements in CoC Revision 19. The omission was identified by EnergySolutions' corrective action system while the subject lids were still in fabrication. A corrective action was assigned to measure the as-built test volumes, which included the void space between the thick plates since there were no tubes installed. The test volumes were found to exceed the volume basis for pre-shipment leak rate test hold time calculated in the SAR. The tubes were therefore installed, and the lids were placed on QA-hold using EnergySolutions' noncompliance procedure because they did not meet the lid configuration authorized by the CoC in effect at that time (i.e., CoC, Rev. 20). EnergySolutions subsequently made a determination that prior NRC authorization was not required (because the tubes had been pati of the previous NRC-approved 8-120B cask design and were inadvetiently omitted from the new secondary lid design), cleared the hold, and released the lids for use. The tubes were restored to the SAR drawings as pati of a broader license amendment request submitted in May 2014, but the request was withdrawn for unrelated reasons. A new license amendment request submitted to the NRC on 9/16/2015 reintroduces the tubes to the secondary lid design.

The presence of the tubes in the subject secondary lid test potts has no safety consequence because the as-built test volume meets the basis for the pre-shipment leak rate test hold time.

1 Secondary lid numbers 8-120B-5, -6, -7, and -8.

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2) Narrative Description of the Event a) Status of Components All of the 8-120B casks operating with the secondary lids that have the tube installed in the test pmt (i.e., secondary lid numbers 8-120B-5, -6, -7, and -8) have been removed from service until CoC No. 9168 is amended to include the tube.

b) Dates of Occurrences Casks with the secondmy lids that have the tube installed in the test port (i.e., secondary lid numbers 8-120B-5, -6, -7, and -8) were entered into service between October 2014 and December 2014 and have been used for a total of 52 Type B shipments (by all licensees).

c) Cause of Enor EnergySolutions cleared the hold and released the subject secondary lids for use, believing that prior NRC authorization was not required because the tubes had been pa1t of the previously NRC-approved 8-120B cask design and were inadvertently omitted from the new secondary lid design.

d) Failure Mode, Mechanism, and Effects Not applicable.

e) Systems or Secondmy Functions Mfected Not applicable.

f) Method of Discovety of the Enor The enor was identified by the NRC inspection team during an audit at the EnergySolutions' facility in Columbia, SC.

3) Assessment of Safety Consequences The presence of the tubes in the subject secondary lid test potts has no safety consequence because the as-built test volume meets the basis for the pre-shipment leak rate test hold time.

The secondary lid test port configuration of the subject lids is similar to the design previously authorized for use prior to CoC Revision 19.

4) Planned Corrective Actions The following corrective actions are planned by EnergySolutions:

EnergySolutions has removed 8-120B casks with the secondary lids that have the tube installed in the test poti (i.e., secondary lid numbers 8-120B-5, -6, -7, and -8) from service until authorized to resume their use.

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EnergySolutions has evaluated the condition for repmiability under 10 CFR 71.95 and has concluded that it is reportable.

EnergySolutions will notify the licensees (cask users) that have made shipments using the 8-120B casks with the affected secondary lids and advise them to evaluate repmiability under 10 CFR 71.95.

EnergySolutions has prepared and submitted an application to NRC to amend CoC No. 9168 to include the test port tube in the four subject secondary lids as an authorized configuration.

EnergySolutions will perform an apparent cause analysis and identify additional corrective actions to prevent recurrence.

5) Previous Similar Events Involving the 8-120B No previous similar events have been identified.

6) Contact for Additional Information Dan Shrum EnergySolutions Senior Vice President, Regulatory Affairs (801) 649-2109

7) Extent of Exposure of Individuals to Radiation or Radioactive Materials None.

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Attachment 1 I I

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Secondary Lid Test Port Secondary Lid Test Port with Cladding Tube without Cladding Tube (subject secbndaty lids) (current CoC configuration) 4

Enclosure 2 to PLA-7414 List of Susquehanna Nuclear, LLC Shipments Using the Affected Energy Solutions 8-120B Cask