ML080710577
| ML080710577 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/24/2008 |
| From: | NRC/NRR/ADRO/DORL/LPLII-2 |
| To: | |
| Mozafari B, NRR/ADRO/DORL, 415-2020 | |
| Shared Package | |
| ML080710575 | List: |
| References | |
| TAC MD4110 | |
| Download: ML080710577 (1) | |
Text
ADMINISTRATIVE CONTROLS 6.9.1.16.5 For implementation of the probability of prior cycle detection (POPCD) method, for the voltage-based repair criteria at tube support plate intersections, if the end-of-cycle conditional tube rupture probability for a postulated main steam line break, the projected primary to secondary leak rate during a postulated main steam line break, or the number of indications are under predicted by the previous cycle operational assessment, the following shall be reported to the Commission within 90 days after initial entry into MODE 4 following completion of inspection performed in accordance with specification 6.8.4.k, "Steam Generator Program."
- 1.
The assessmentof the probable causes for the under prediction, proposed corrective actions, and any recommended changes to probability of detection or growth methodology indicated by potential methods assessments.
- 2.
An assessment of the potential need to revise the alternate repair criteria analysis methods if: the burst probability is under predicted by more than 0.001 (i.e., 10 percent of the performance criteria) or an order of magnitude; or the leak rate is under predicted by more than 0.5 gallon per minute (gpm) or an order of magnitude.
- 3.
An assessment of the potential need to increase the number of predicted low voltage indications at the beginning of cycle if the total number of as-found indications in any SG are underestimated by greater than 15 percent or by greater than 150 indications.
SPECIAL REPORTS 6.9.2.1 Special reports shall be submitted withinthe time period specified for each report, in accordance with 10 CFR 50.4.
6.9.2.2 This specification has been deleted.
6.10 RECORD RETENTION (DELETED).
SEQUOYAH - UNIT 2 6-15 Amendment No. 28, 44, 50, 64, 66,107,.
134,146,153,165,169,206,214,223,231, 249, 284, 309,