ML19351E581
| ML19351E581 | |
| Person / Time | |
|---|---|
| Site: | Hartsville, Phipps Bend  |
| Issue date: | 11/26/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NCR-DELAVAL-1, NUDOCS 8012100478 | |
| Download: ML19351E581 (2) | |
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3c. c.^ /3' ' C 5 p J Mr. James P. O'Reilly, Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Region II - Suite 3100 101 Marietta Street Atlanta, Georgia 30303
Dear Mr. O'Reilly:
HARTSVILLE AND PHIPPS BEND NUCLEAR PLANTS - REPORTABLE DEFICIENCY -
LINK ROD ASSEMBLY - DELAVAL DIESELS (NCR DELAVAL Nu. 1)
Initial notification of the subject deficiency was made to NRC-0IE, Region II, Inspector R. W. Wright on October 27, 1980.
In compliance with paragraph 50.55(e) of 10 CFR Part 50, enclosed is the first interim report on the subject deficiency. We consider 10 CFR Part 21 applicable to this nonconformance. TVA anticipates transmitting the final report on or before March 2,1981. If you have any questions regarding this subject, please call Jim Damer at FTS 857-2014.
Very truly yours, 4
TENNESSEE VALLEY AITTHORITY f.lY,] $'hL!
[,[y L. M. Mills, Manager Nuclear Regulation and Safety Enclosure ec:
Mr. Victor Stello, Director (Enclosure)
Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555
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ENCLOSURE HARTSVILLE AND PHIPPS BEND NUCLEAR PLANTS LINK ROD ASSEMBLY - DELAVAL DIESELS NCR - DELAVAL NO. I 10 CFR PART 50.55(e) FIRST INTERIM REPORT Description of Deficiency Transamerica Delaval (TDC) informed TVA of a potential problem in TDC-supplied diesel generators at the Bellefonte, Hartsville, and Phipps Bend Nuclear Plants. This was reported to NRC-0IE under 10 CFR Part 21 by letter from D. H. Martini (TDC) to V. Stello of the NRC dated September 19, 1980.
The problem is that the dowel counterbore of the link rod assembly may be too shallow. This condition, if it exists, could result in the failure of thaA assembly and ultimately in the unavailability of the diesel generators.
Interim Progress
' A total of 12 Transamerica Delaval diesels are designed for use at Hartsville and Phipps Bend (two TDC generators per unit). The eight Transamerica dieseis for Hartsville are in onsite storage there.
One of the four die. rls slated for Phipps Bend is onsite. The remaining three havn yet to arrive.
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Transameria Delaval has described the inspection method required to determine whether the dowel counterbore defect is present. Onsite diesels will be placed on hold and inspected for the subject defect.
T7A is still in the process of determining the status of inspection for this defect for the three diesel generators which have yet to be delivered to Phipps Bend. TVA will take steps to ensure that all 12 dicsels have been or will be inspected for the presence of this i
defect before operation.
The final report on this nonconformance for Bellefonte Nuclear Plant was transmitted to you by my letter dated November 25, 1980.