LIC-95-0181, Forwards Fort Calhoun Station Seismic Evaluation Rept, Summarizing Results of USI A-46 Review,In Response to GL 87-02

Forwards Fort Calhoun Station Seismic Evaluation Rept, Summarizing Results of USI A-46 Review,In Response to GL 87-02

ML20092M898
Person / Time
Site:	Fort Calhoun
Issue date:	09/28/1995
From:	Tira Patterson OMAHA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20092M900	List: LIC-95-0181, Forwards Fort Calhoun Station Seismic Evaluation Rept, Summarizing Results of USI A-46 Review,In Response to GL 87-02
References
REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR GL-87-02, GL-87-2, LIC-95-0181, LIC-95-181, TAC-M69447, NUDOCS 9510040174
Download: ML20092M898 (5)

Text

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1 Omaha Public Power District P.O. Box 399 Hwy. 75- North of Ft. Calhoun Fort Calhoun. NE 68023-0399 402/636-2000 September 28, 1995 LIC-95-0181 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Station Pl-137 Washington, D.C. 20555

References:

1. Docket No. 50-285

2. NRC Generic Letter (GL) 87-02, Supplement I dated May 22, 1992

3. Letter from OPPD (W. G. Gates) to NRC (Document Control Desk) dated September 21, 1992 (LIC-92-30lR)

4. Letter from OPPD (W. G. Gates) to NRC (Document Control Desk) dated February 11, 1993 (LIC-93-0068)

5. Letter from OPPD (W. G. Gates) to NRC (Document Control Desk) dated September 24, 1993 (LIC-93-0248)

SUBJECT:

Unresolved Safety Ime A-46 Summary Report in Response to Generic l Letter 87-02, Su- ient I that transmits Supplemental Safety l I

Evaluation Report 2 on SQUG Generic Implementation Procedure, Revision 2, as corr _ ted on February 14, 1992 (TAC No. 69447)

Fort Calhoun Station is subject to the implementation provisions outlined in NRC l

Generic Letter (GL) 87-02, " Verification of Seismic Adequacy of Mechanical and i Electrical Equipment in Operating Reactors Unresolved Safety Issue (USI) A-46."

l Supplement 1 to this Generic Letter (Reference 2) asked for a commitment to use j both the Seismic Qualification Utility Group (SQUG) commitments and the implementation guidance provided in the Generic Implementation Procedure, Revision 2 (GIP-2) as supplemented by the Supplemental Safety Evaluation Report

, No. 2 for the resolution of USI A-46. GL 87-02, Supplement I also requested a plant-specific schedule for implementation of the GIP and submission of a report that summarizes the results of the USI A-46 review. I

! l l Omaha Public Power District (OPPD) provided the requested commitment and schedule l in Reference 3; References 4 and 5 clarified this response. Enclosed are the (

Fort Calhoun Station Seismic Evaluation Report, Safe Shutdown Equipment List l (SSEL) Report, and Relay Evaluation Report which summarize the results of the USI i A-46 review. OPPD has implemented the SQUG commitments and the implementation guidance set forth in GIP-2 and SSER No. 2. OPPD intends to use the GIP l

methodology for verifying the seismic adequacy of existing, new, and replacement I

electrical and mechanical equipment.

l l 0400'5 g 05 Sm 9510040174 950928 i

PDR ADOCK 05000285 l p PDR

r 1 .

B. .S. Nuclear Regulatory Commission LIC-95-0181 Page 2 The outliers to the GIP-2 identified during the implementation phase of the resolution were resolved and/or commitments were made for their resolution. The schedules. for completion of the various outstanding outlier resolutions are contained in Enclosure 1. This information is a compilation from the enclosed reports; (Table 8 of the-Seismic Evaluation Report, Section 4.2.2 of the SSEL e Report, and Appendix G of the Relay Evaluation Report). As noted in Reference 2, OPPD will provide a completion letter to -the NRC when all outliers are resolved.

Please contact me if you have any questions.

Sincerely, kT. L. Patterson

. Division Manager Nuclear Operations TLP/tcm Enclosures-c: Winston & Strawn (w/o reports)

L. J. Callan, NRC Regional Administrator, Region IV (w/o reports)

W. C. Walker, NRC Senior Resident Inspector (w/o reports)

S. D. Bloom, NRC Project Manager I

l l

LIC-95-0181 ENCLOSURE 1, PAGE I ,

SEISMIC EVALUATION REPORT r

SUMMARY

AND SCHEDULE FOR OUTLIER RESOLUTION (OUTSTANDING ITEMS EXERPTED FROM TABLE 8) hem '""""#" "

Outlier Description Status / Schedule No Resolution 1 Genene: Os erhead lights are supported by open Close the hools or change the support system appropnately. ECN 94490 hools. MWO 943252 4%

3 Sixteen electrical cabinets are not bolted to adjacent 11olt the cabinets to adiacent cabinets. MR-FC-94-017 R%

cabinets and t.ontain essential relas s MR-FC-94-016 12 %

7 AI-3 cabinet has three missing screw s on the inside Replace screws. MWO 941480 12 %

paneld e 1I IICV-238, AOV: One of the two anchors missing on Replaec the missing anchor. StitTen the frame. MR-FC-94-016 12 %

the accumulator. Also, unistrut frame is ten flexible.

13 IICV-2861 AOV is in Senice lludding, which is rmt Delete function of this vahe by moditication MR-FC-94-022 9%

designed for design basis canhquakes.

I5 MCC-3A2: No bohs in the rear of the caNnet. Proside suflicient rear anchorage. MR-FC-94-017 8%

16 MCC-4Al and MCC-3B1 hase anchors uhich Replace anchors MR-FC-94-017 896 cannot be tightened.

17 MCC-3113 and MCC-4C4 have insuflicient Proside sutTicient anchorage. MR-FC-94-017 8.%

anchorage.

19 VA-3A,3B, fans on vibration isolators. Also, Tie the sibration isolators down Evaluate fan's scismic adequacy . MR-FC-94416 1296 scismic demand eseceds capacitv.

20 FO-2-1 and FO-2-2, Day Tanks: long sight glasses Replace sight glass with a plastic. break-resistant glass, or other tough material. ECN 94-084 6.96 are vulnerable. _.

21 Eight DC starting air receivers and CCW Surge Tank Weld or pretension the straps and weld saddles. MR-FC-94-017 896 AC-2: Straps and saddles not welded or pretenioned.

22 Tank does not fall within the bounding GIP Modify to eliminate requirement for tank WD-21 MR-FC-89-017 12S6 parameters. (Refer to Table 2 for details.)  !

25 Cable and Conduit Raceways in some areas require Perform the required repairs. MR-FC-94-016 1196 minor repairs (Refer to Table 3 for details). MR-FC-94-017 8S6 Note: MR-Modification Request; ECN-Engineering Change Notice; MWO-Maintenance Woik Order ,

i

LIC-95-0181, ENCLOSURE I, PACE 2 -

~ SSEL REPORT

~

SUMMARY

AND SCHEDULE FOR OUTLIER RESOLUTION (FROM SECTION 4.2.2)

EQUIPMENT RESOLUTION SCHEDULE -

• Raw Water System cannot be presently used to Add hose connection to RW header in Room 81 to MR-FC-94-018 refill the EFWST. See Section 4.2.2 for details. allow refilling of EFWST, 12/96 Note- MR-Modification Request; ECN-Engineering Change Notice, MWO-Maintenance Work Onfer Y

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