ML061220693
| ML061220693 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 05/30/2006 |
| From: | Progress Energy Co |
| To: | Office of Nuclear Reactor Regulation |
| Mozafari B, NRR/ADRO/DORL, 415-2020 | |
| Shared Package | |
| ML061350141 | List: |
| References | |
| TAC MC8535, TAC MC9562 | |
| Download: ML061220693 (6) | |
Text
http://nggweb/cr3environmentalradcontrol/chemist ry/out/podchem. pdf (2-year plot)
Primary to Secondary Leakrate / RM-A12 Method 3.5-3 -
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Provide a description of the inspections performed including the areas examined and the probes used.
Scope A
B 100% Full Length Bobbin Coil (UTS to LTS) 15,232 14,748 100% Upper and Lower Roll Transition Of The Non-Sleeved Tubes Inservice 15,232 14,748 Using MRPC 34% Bobbin Coil of the Inservice Sleeves Examined Full Length of the Sleeve 55 54 34% MRPC of the Rolled Joints in the UTS and 15S of the Inservice Sleeves (Plus 55 54 6" below the end of the sleeve) 34% MRPC exam UTS and 15S of Remainder Lane Region Un-sleeved tubes 13 10 34% MRPC @ 15S Exam Of One Tube Boundary Around Lane/Wedge Region 45 45 Sleeved and Un-Sleeved Tubes Visual Inspection of ALL Plugs 598 1566 100% MRPC of the I-600 Rolled Plugs 20 47 100% MRPC of the Dents Adjacent to Explosive Plugged Tubes 17 66 34% MRPC of all Dents LTS +4" to UTE 160 70 34% MRPC in the Lower Tube Sheet Crevice Area, +4" to -8" from the LTSF in 2054 1387 the Sludge Pile Region 100% MRPC of the Inservice Tubes with IGA in the First Span N/A 167 Mi Progres Energy
The scope of the inspection and the expansion criteria Scope 100% Full Length Bobbin Coil 100%/6 Inspection, no further expansion Is possible 100% Upper and Lower Roll Transition Of The Non-Sleeved Tubes Inservice 100% Inspection, no further expansion Is possible Using MRPC 34% Bobbin Coil of the Inservice Sleeves Examined Full Length of the Sleeve IF C-I: THEN NO EXPANSION REQUIRED IF C-2 or C-3:. THEN Inspect the remaining tubes in the affected OTSG and 20% additional tubes in the other OTSG.
34% MRPC of the Rolled Joints in the UTS and 15S of the Inservice Sleeves (Plus IEC-1: ITHE NO EXPANSION REQUIRED 6" below the end of the sleeve) jfC-2 or C-3:. THEN Inspect the remaining tubes In the affected OTSG and 20% additional tubes in the other OTSG.
34% MRPC exam UTS and 15S of Remainder Lane Region Un-sleeved tubes IF C-1: THEN NO EXPANSION REQUIRED IF C-2 or C-3:. THEN Inspect the remaining tubes in the affected OTSG and 20% additional tubes in the other OTSG.
34% MRPC @ 15S Exam Of One Tube Boundary Around Lane/Wedge Region IE C-I: THEN NO EXPANSION REQUIRED Sleeved and Un-Sleeved Tubes LF C-2 or C-3:. IHEN Inspect the remaining tubes In the affected OTSG and 20% additional tubes In the other OTSG.
Visual Inspection of ALL Plugs 100% Inspection, no further expansion Is possible 100% MRPC of the I-600 Rolled Plugs 100% Inspection, no further expansion Is possible 100% MRPC of the Dents Adjacent to Explos Plugged Tubes 100% Inspection, no further expansion is possible 34% MRPC of all Dents LTS +4" to UTE IF C-1: TH3N NO EXPANSION REQUIRED IF C-2 or C-3:. THEN Inspect the remaining tubes in the affected OTSG and 20% additional tubes In the other OTSG.
34% MRPC in the Lower Tube Sheet Crevice Area, +4" to -8" from the LTSF in IF C-1: THEN NO EXPANSION REQUIRED the Sludge Pile Region IEC-2 or C-3:. THEN Inspect the remaining tubes in the affected OTSG and 20% additional tubes in the other OTSG.
100% MRPC of the Inservice Tubes with IGA in the First Span (B OTSG)
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EC TYPICAL TUBE END CRACKING
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Characteristics
- Axial and Circumferential
- Adjacent to TS Clad Region C2 Progress Energy d%