ML18096A431
| ML18096A431 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 01/09/1992 |
| From: | Vondra C Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9201160076 | |
| Download: ML18096A431 (2) | |
Text
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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, DC 20555
Dear Sir:
SALEM GENERATING STATION LICENSE NO. DPR-75 DOCKET NO. 50-311 UNIT NO. 2 January 9, 1992 TECHNICAL SPECIFICATION SURVEILLANCE NOTIFICATION REQUIREMENT 4.4.6.5.a On December 30, 1992, Steam Generator {S/G) tube plugging was completed.
Attached is a list of the plugged tube locations completed this outage.
In all, eighteen {18) tubes were plugged of which:
two (2) tubes were plugged due to imperfection depths greater than or equal to 40%; six (6) tubes were plugged due to imperfection depths between 30 and 40%; eight (8} tubes were plugged by installation of a dampener followed by inconel 690 plug on the Hot Leg and a sentinel plug on the Cold Leg; and two (2}
tubes had their inconel 690 cold Leg plug replaced with a sentinel plug.
Tube dampening and plug replacement was completed as per Westinghouse recommendations, discussed in PSE-91-197 dated October 30, 1991, due to the susceptability to flow induced fatigue phenomenon in the U-Bend region of the subject tubes.
This notification is being made, within fifteen (15) days after tube plugging, as required by Technical Specification Surveillance 4.4.6.5.a.
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- Vondra, General Manager -
Salem Operations
..,.. r Stearn Generator Tubes Plugged 6th Refueling Outa~
ATTACHMENT SIG Row/Column
% Depth SIG Row/Column
% Depth 21 29/56 34/50 27/58 33/51 29/45 32/66 39/41 21/67 9/59 9/60 22 8/61 10/46 10/50 11/16 11/17 NOTE:
- 40 23 8/59 39 39 39 37 37 35
>40 24 9/60 10/60 Installed a dampener then an inconel 690 plug on the Hot Leg and a sentinel plug on the Cold Leg as recommended by Westinghouse Replaced an inconel 690 cold Leg plug with a sentinel plug as recommended by Westinghouse