ML082321170
| ML082321170 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 09/10/2008 |
| From: | Jack Cushing NRC/NRR/ADRO/DORL/LPLIII-1 |
| To: | Meyer L Florida Power & Light Energy Point Beach |
| Cushing, J S, NRR/DORL/LPLIII-1,415-1424 | |
| References | |
| TAC MD9468 | |
| Download: ML082321170 (5) | |
Text
September 10, 2008 Mr. Larry Meyer Site Vice President FPL Energy Point Beach, LLC 6610 Nuclear Road Two Rivers, WI 54241 Addressee
SUBJECT:
POINT BEACH NUCLEAR PLANT, UNIT 1 - UPCOMING STEAM GENERATOR TUBE INSERVICE INSPECTION TAC NO. MD9468
Dear Mr. Meyer:
Inservice inspections of steam generator (SG) tubes play a vital role in assuring SG tube integrity. The reporting requirements of technical specification (TS) 5.6.8 require submission of a report within 180 days following initial entry into Mode 4. The content of the report is specified in TS 5.6.8.
A phone conference has been arranged with members of your staff to discuss the ongoing results of the SG tube inspections to be conducted during the upcoming Point Beach Nuclear Plant Unit 1 refueling outage. This phone call will occur after the majority of the tubes have been inspected, but before the SG inspection activities have been completed. The tentative date for the call is around October 14, 2008. Enclosed is a list of discussion points to facilitate this phone conference. The NRC staff plans to document a summary of the conference call, including any material that you provide to the NRC staff in support of the call.
Sincerely,
/RA/
Jack Cushing, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-266
Enclosure:
SG Tube Inspection Discussion Points cc w/encls: See next page
Mr. Larry Meyer Site Vice President FPL Energy Point Beach, LLC 6610 Nuclear Road Two Rivers, WI 54241 Addressee
SUBJECT:
POINT BEACH NUCLEAR PLANT, UNIT 1 - UPCOMING STEAM GENERATOR TUBE INSERVICE INSPECTION TAC NO. MD9468
Dear Mr. Meyer:
Inservice inspections of steam generator (SG) tubes play a vital role in assuring SG tube integrity. The reporting requirements of technical specification (TS) 5.6.8 require submission of a report within 180 days following initial entry into Mode 4. The content of the report is specified in TS 5.6.8.
A phone conference has been arranged with members of your staff to discuss the ongoing results of the SG tube inspections to be conducted during the upcoming Point Beach Nuclear Plant Unit 1 refueling outage. This phone call will occur after the majority of the tubes have been inspected, but before the SG inspection activities have been completed. The tentative date for the call is around October 14, 2008. Enclosed is a list of discussion points to facilitate this phone conference. The NRC staff plans to document a summary of the conference call, including any material that you provide to the NRC staff in support of the call.
Sincerely,
/RA/
Jack Cushing, Senior Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-266
Enclosure:
SG Tube Inspection Discussion Points cc w/encls: See next page DISTRIBUTION PUBLIC RidsOgcRp LPL3-1 R/F RidsAcrsAcnw&mMailCenter RidsNrrDorlDpr RidsNrrDorlLpl3-1 KKarkowski RidsNrrLATHarris RidsRgn3MailCenter RidsNrrPMJCushing Accession Number: ML082321170 OFFICE NRR/LPL3-1/PM NRR/LPL3-1/LA CGSB/BC NRR/LPL3-1/BC NAME JCushing THarris AHiser LJames DATE 09/ 08 /08 09/ 09 /08 09/ 04/ 08 09/ 10 /08 OFFICIAL RECORD COPY
Point Beach Nuclear Plant, Units 1 and 2 cc:
Licensing Manager FPL Energy Point Beach, LLC 6610 Nuclear Road Two Rivers, WI 54241 Mr. Ken Duveneck Town Chairman Town of Two Creeks 13017 State Highway 42 Mishicot, WI 54228 Resident Inspector's Office U.S. Nuclear Regulatory Commission 6612 Nuclear Road Two Rivers, WI 54241 Chairman Public Service Commission of Wisconsin P.O. Box 7854 Madison, WI 53707-7854 Mr. J. A. Stall Executive Vice President, Nuclear and Chief Nuclear Officer FPL Group P. O. Box 14000 Juno Beach, FL 33408-0420 T. O. Jones Vice President, Nuclear Operations Mid-West Region Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Peter Wells Acting Vice President, Nuclear Training and Performance Improvement Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 John Bjorseth Plant General Manager Point Beach Nuclear Plant 6610 Nuclear Road Two Rivers, WI 54241 Mark E. Warner Vice President, Nuclear Plant Support Florida Power & Light Company P. O. Box 14000 Juno Beach, FL 33408-0420 Mr. Antonio Fernandez Senior Attorney FPL Energy, LLC P. O. Box 14000 Juno Beach, FL 33408-0420 Mr. Mano Nazar Senior Vice President and Nuclear Chief Operating Officer FPL Energy, LLC P. O. Box 14000 Juno Beach, FL 33408-0420 Abdy Khanpour Vice President Engineering Support FPL Energy, LLC P. O. Box 14000 Juno Beach, FL 33408-0420 J. Kitsembel Electric Division Public Service Commission of Wisconsin P. O. Box 7854 Madison, WI 53707-7854 Mr. M. S. Ross Managing Attorney FPL Energy, LLC P. O. Box 14000 Juno Beach, FL 33408-0420
ENCLOSURE STEAM GENERATOR (SG) TUBE INSPECTION DISCUSSION POINTS The following discussion points have been prepared to facilitate the conference call arranged with the licensee to discuss the results of the SG tube inspections to be conducted during the upcoming fall 2008, Unit 1 refueling outage. This conference call is scheduled to occur towards the end of the planned SG tube inspections, but before the unit completes the inspections and repairs. The tentative date is around October 14, 2008.
The U.S. Nuclear Regulatory Commission staff plans to document a summary of the conference call as well as any material that is provided in support of the call.
- 1. Discuss any trends in the amount of primary-to-secondary leakage observed during the recently completed cycle.
- 2. Discuss whether any secondary side pressure tests were performed during the outage and the associated results.
- 3. Discuss any exceptions taken to the industry guidelines.
- 4. For each SG, provide a description of the inspections performed including the areas examined and the probes used (e.g., dents/dings, sleeves, expansion-transition, U-bends with a rotating probe), the scope of the inspection (e.g., 100 percent of dents/dings greater than 5 volts and a 20 percent sample between 2 and 5 volts), and the expansion criteria.
- 5. For each area examined (e.g., tube supports, dent/dings, sleeves, etc), provide a summary of the number of indications identified to-date for each degradation mode (e.g., number of circumferential primary water stress-corrosion cracking indications at the expansion transition). For the most significant indications in each area, provide an estimate of the severity of the indication (e.g., provide the voltage, depth, and length of the indication). In particular, address whether tube integrity (structural and accident-induced leakage integrity) was maintained during the previous operating cycle. In addition, discuss whether any location exhibited a degradation mode that had not previously been observed at this location at this unit (e.g., observed circumferential primary water stress-corrosion cracking at the expansion transition for the first time at this unit).
- 6. Describe repair/plugging plans.
- 7. Describe in-situ pressure test and tube pull plans and results (as applicable and if available).
- 8. Discuss the following regarding loose parts:
$ what inspections are performed to detect loose parts
$ a description of any loose parts detected and their location within the SG (including the source or nature of the loose part, if known)
$ if the loose parts were removed from the SG
$ indications of tube damage associated with the loose parts
- 9. Discuss the scope and results of any secondary side inspection and maintenance activities (e.g., in-bundle visual inspections, feedring inspections, sludge lancing, assessing deposit loading, etc).
- 10. Discuss any unexpected or unusual results.
- 11. Provide the schedule for SG-related activities during the remainder of the current outage.