ML043090549

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October 2004, Eleventh Refuel Outage Steam Generator Inservice Inspection Report
ML043090549
Person / Time
Site: Braidwood Constellation icon.png
Issue date: 10/29/2004
From: Joyce T
Exelon Generation Co, Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
BW040098
Download: ML043090549 (2)


Text

Exe Iukn.

Exelon Generation Company, LLC www.exeloncorp.com Nuclear Braidwood Station 35100 South Rt 53, Suite 84 Braceville, IL 60407-9619 Tel. 815-417-2000 October 29, 2004 BW040098 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Braidwood Station, Unit 1 Facility Operating License No. NPF 72 NRC Docket No. STN 50-456

Subject:

October 2004, Eleventh Refuel Outage Steam Generator Inservice Inspection Report In accordance with Technical Specification 5.6.9, "Steam Generator (SG) Tube Inspection Reports," Exelon Generation Company, LLC is reporting the number of tubes plugged or repaired during the SG inservice inspection activities conducted during the Braidwood Station, Unit 1 October 2004 eleventh refueling outage. Technical Specification 5.6.9.a requires that following each inservice inspection of the SG tubes, the number of tubes plugged or repaired in each SG shall be reported to the NRC within 15 days.

The Braidwood Station Unit 1 October 2004 eleventh refueling outage SG tube eddy current inspection scope included 100% full-length bobbin coil inspection of the 1B SG. Scope expansion into the 1A,1 C and 1D was also conducted. The 1A,1 C and 1D scope expansion included approximately 22% bobbin coil inspection of the hot leg tubing. In addition, the peripheral tube regions of the cold leg tubing were inspected equaling approximately 15.5% of the cold leg tubing.

+PointM coil inspection was conducted on bobbin coil indications classified as requiring additional diagnostic testing.

The SG tube inspections were completed on October 18, 2004. No tube sleeving was performed during this outage. The Braidwood Unit 1 Steam Generator Tube Plugging Summary summarizes the inspection results during the October 2004 eleventh refueling outage and number of tubes removed from service to date by tube plugging.

BRAIDWOOD UNIT 1 STEAM GENERATOR TUBE PLUGGING

SUMMARY

- SGA l SGB SG C SG D Total Prema* Rugged 10 12 3 0 25 Rugged Durting October 2004 Refueling outage 0 2 2 1 5 Total 10 14 5 1 30 Please direct any questions regarding this submittal to Dale F. Ambler, Braidwood Regulatory Assurance Manager, (815) 417-2800.

Sincerely, T.P.Jy Site Vice President Braidwood Station cc: Regional Administrator - NRC Region IlIl NRC Senior Resident Inspector - Braidwood Station