ML20217P804

11RFO OTSG ECT Insp Scope

ML20217P804
Person / Time
Site:	Davis Besse
Issue date:	04/07/1998
From:	CENTERIOR ENERGY
To:
References
NUDOCS 9804100198
Download: ML20217P804 (2)

Text

" 5~D -5 YC FnsL/w-i t'/df l Davis-Besse Nuclear Power Station 11RFO OTSG ECT Inspection Scope l

1 l

l Tube Inspection / Testing l

l Background Information 5 Two Once-Through Steam Generators 5 SG A(1-2)

Number of Tubes- 15457 Number of Tubes Plugged - 381 Number of Tubes Sleeved - 199 E SG B (1-1) i Number of Tubes - 15457 Number ofTubes Plugged - 66 Number of Tubes Sleeved - 212 l l

l Schedule '

i E llRFO: April 11 to May 18 5 SG Work Window: April 14 to May 4 (Manway-to-Manway) l E SG Inspection: April 17 to May 2 i

Eddy Current Inspection l

l E 100% Full Length Bobbin l

E 20% RPC Upper Roll Transition d O 9804100198 980407 PDR ADOCK 05000346 G PDR eh( i I

l t

me W 20% RPC Rolled Plugs E 20% Sleeves, Bobbin & RPC E 160 RPC Sleeve Zone Border Tube E 68 RPC Dents / dings E Approximately 1400 RPC Special Interest, 6

l In-situ Pressure Test 1'

i l 5 <10 Tubes (Estimate 4 pcr SG)

I l 5 Pressurize the tube up to 3 Delta P (4025 PSID) i

Tube Pull l

l 5 Pull 1 to 4 tubes, as identified.

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