ML20035A778
| ML20035A778 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 03/19/1993 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20035A777 | List: |
| References | |
| NUDOCS 9303290294 | |
| Download: ML20035A778 (3) | |
Text
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PROPOSED TECHNICAL SPECIFICATION CHANGES t
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e 9303290294 930319 PDR ADOCK 05000313 P
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4.18.6 Renorts Following each inservice inspection of steam generator tubes, the complete results of the inspection shall be reported to the.NRC.
This report, to be submitted within 45 days of inspection completion, shall include:
a.
Number and extent of tubes inspected; b.
Location and percent of wall-thickness penetration for each indication of an imperfection; and Identification of tubes plugged and tubes sleeved.
c.
I This report shall be in addition to a Special Report (per Specification 6.12.5.d) required for the results of steam generator tube inspections which l.
fall into Category C-3 as denoted in Table 4.18-2.
The Commission shall be notified of the results of steam generator tube inspections which fall into Category C-3 prior to resumption of plant operation.
The written Special Report shall provide a description of investigations conducted to determine cause of the tube degradation and corrective measures taken to prevent I
recurrence.
Bases The surveillance requirements for inspection of-the steam generator j
tubes ensure that the structural integrity of this portion of the RCS will be maintained. The program for inservice inspection of steam generator tubes is based on a modification of Regulatory Guide 1.83, Revision 1.
Inservice inspection of steam generator tubing is essential in order to maintain surveillance of the conditions of the tubes in the.
't event that there is evidence of mechanical damage or progressive degradation due to design, manufacturing errors, or inservice conditions t
that lead to corrosion.
Inservice inspection of steam generator tubing also provides a means of characterizing the nature and cause of any tube degradation so that corrective measures can be taken.
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t Amendment No. 24,ff,$6,Jff, JJ$
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a IABLE 4.18-2 STEAM GENERATOR TUBE INSPECTION, 8 2
IST SAMPLE INSPECTION 2ND SAMPLE INSPECTION 3RD SAMPLE INSPECTION Samole Size Result Action Recuired Result Action Reauired Result Action Reauired A minimum of C-1 None' N/A N/A N/A N/A
$ Tubes per S.G.1 C-2 Plug or sleeve C-1 None N/A N/A defective tubes and C-1 None inspect additional C-2 Plug or sleeve C-2 Plug or sleeve 25 tubes in this defective tubes and defective tubes S.G.
inspect additional 4S C-3 Perform action for tubes in this S.G.
C-3 result of C-3 Perform action for first samole C-3 result of
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first samole.
N/A N/A C-3 Inspect all tubes Other in this S.G. plug S.G. is None N/A N/A or sleeve defect-C-1 ive tubes and in-Other Perform action for spect 2S tubes in S.G. is C-2 results of N/A N/A other S.G.
C-2 second samole.
Other Inspect all tubes Special Report S.G. is in each S.G. and N/A N/A to NRC pursuant C-3 plug or sleeve to 6.12.5.d.
defective tubes.
Special Report to NRC pursuant to 6.12.5.d.
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NOTES:
S=3 % Where N is the number of steam generators in the unit, and n is the number of steam generators inspected during an inspection.
"For tubes inspected pursuant to 4.18.3.a.3:
No. action is required for C-1 results. For C-2 results in one or both steam generators plug or sleeve defective tubes.
For C-3 results in one or both steam generators, plug or sleeve defective tubes and provide a Special Report to NRC pursuant to'6.12.5.d.
'No more.than ten thousand (10,000) sleeves may, be installed in both ANO-1 steam generators combined.
Amendment No. 14,'41, $$,155, 115 110o1
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