ML20086Q615
| ML20086Q615 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 12/07/1972 |
| From: | Boyer V PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Kreusi F US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20086Q560 | List: |
| References | |
| SDR-3, NUDOCS 8402270650 | |
| Download: ML20086Q615 (2) | |
Text
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O PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET PHILADELPHIA, PA.19101 (215) e41 4 5oO vic rn sosNT Mr. F. Kreusi, Director Directorate of Regulatory Operations United States Atomic Energy Commission Washington, D.C.
20545
Subject:
Significant Deficiency Interim Report Concerning the Main Steam Line Restraints Peach Bottom Atomic Power Station - Units 2 & 3 AEC Construction Permit No. CPPR-37 File: QUAL 2-10-2 SDR No. 3
Dear Sir:
In compliance with 10CFR Part 50 55 paragraph (e), we are hereby submitting the attached Significant Deficiency Interim Report concerning the Main Steam Line Restraints.
The AEC D0R I inspector was notified of this item during his site visit at Peach Bottom on November 8, 9, 1972.
Sincerely,
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y hf7f:jfp SIGNIFICIANT DEFICIENCY INTERI REPORT PROJECT: Feach Bottom Atomic Power Station 2
CPPR No. 277 UM T.
PREPARED BY:
H. B. Winitsky. m 12/7/72 MANAGER, QUAllTY ASSURANCE PROJECT DATE
- 1. AVAILABLE INFORMATION - DESCRIPTION OF OEFICIENCY Certain items of the Unit No. 2 Main Steam Line Restraints appear to be fabricated from a nonconforming material (based on preliminary laboratory reports of the material tested).
The apparent material nonconformances were identified during the review of a field welding problem.
2.AVAILABLEINFORMATI0h-ANALYSISOFSAFETYIMPLICATIONS None presently available.
3._AVAILABLE INFORMATION - CORRECTIVE ACTION The. field welding problem was resolved by using improved heaters to attain the required weld preheat.
An in-depth material testing program is underway to positively identify each item. A program is also underway to evaluate the shop fabiicated welds.
An engineering study is being conducted to determine the extent of this problem and appropriate corrective action.
Lt. SCHEDULE 0 SUBMISSION OATE OF COMPLETE SIGNIFICIANT OEFICIENCY REPORT February 1, 1973 en-to uve tas
- enns