ML18100A720
| ML18100A720 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 11/22/1993 |
| From: | Vondra C Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9312020413 | |
| Download: ML18100A720 (2) | |
Text
..
e PS~G Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge, New Jersey 08038 Salem Generating Station U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C.
20555
Dear Sir:
SALEM GENERATING STATION LICENSE NO. DPR-70 DOCKET NO. 50-272 UNIT NO. 1 November 22, 1993 TECHNICAL SPECIFICATION SURVEILLANCE 4.4.5.5.a NOTIFICATION On November 10, 1993, Steam Generator (S/G) tube plugging, in support of the eleventh refueling outage, was completed.
Attached is a list of the plugged tube locations. In all, twenty-six (26} tubes were plugged due to imperfection depths greater than or equal to 40% and two (2) were plugged due to imperfection depths between 30% and 40%.
This notification is being made, within fifteen (15) days after tube plugging, as required by Technical Specification Surveillance 4.4.5.5.a MJPJ:dpc r-------- -
~g~2020413 -93ii~~-- --~,
p ADDCK 05000272 PDR The power is in your hands.
- General Manager-Salem Operations 95-2189 REV 7-92
Steam Generator Tubes Plugged Eleventh Refueling Outage ATTACHMENT S/G Row/Column
% Depth S/G Row/Column
% Depth Top of Tube Sheet - Rotating Pancake Coil CRPC} Program 11 2/53
>40 13 3/59
>40 7/75
>40 6/6
>40 17/52
>40 12/48 50 17/59
>40 13/49 46 18/58 53 13/50
>40 18/60 51 14/39
>40 19/59
>40 20/55
>40 14 17/83
>40 20/61
>40 31/52
>40 NOTE:
All above RPC identified indication depths were inspected via the Bobbin Coil Inspection {BCI) Program to quantify the percent depth of indication due to the relative nature of the degradation.
11 13 39/52 40/56 30/42 31/15 38/59 38/63 Bobbin Coil Inspection CBCI} Program 37 40
>40
>40 44 51 12 14 5/42 8/4 28/85 33/43
.44/35
>40
>40
>40
>40 39 NOTE:
All distorted bobbin coil signals were inspected via RPC probes to further evaluate potential indications.. In those cases where the RPC inspection confirmed a defect, through-wall depth was determined to be greater than 40%.