ML19340B131
| ML19340B131 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 10/17/1980 |
| From: | Hukill H METROPOLITAN EDISON CO. |
| To: | Reid R Office of Nuclear Reactor Regulation |
| References | |
| TLL-511, NUDOCS 8010210474 | |
| Download: ML19340B131 (2) | |
Text
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Metropolitan Edison Company g
F Post Of fice Bcx 480 Middletown. Pennsylvania 17057 717 944-4041 Wrner's 0: rect Dial Nurnber October 17, 1980 TLL 511 Office of Nuclear Reactor Regulation Attn:
R. W. Reid, Chief Operatir.g Reactors Branch No. 4 U. S. Nuclear Regulatory Commission Washingt on, D.C.
20555
Dear Sir:
Three Mile Island Nuclear Station, Unit 1 (TMI-1)
Operating License No. DPR-50 Docket No. 50-289 Modification to Technical Specification Change Request No. 91 Per a telephone conversation between Messrs. D. Dilanni of your staff and D. Mitchell of Met-Ed, the following changes to TSCR #91, concerning the irradiation of surveillance capsules in the Crystal River 3 reactor, the follouing section revisions were suggested.
4.2.2 The reactor vessel material surveillance capsules removed from TMI-l during 1976 shall be inserted, irradiated in and withdrawn from Crystal River Unit No. 3 (CR-3) in accordance with the schedule shown in Table 4.2-2.
(The insertion / withdrawal schedule shown in Table 4.2-2 may be revised at a later date pending the restart of TMI-2.)
Met-Ed shall be responsible for the examination of these specimens and for submission of reports of test results in accordance with 10 CFR 50, Appendix H.
Bases:
b.
Because of damage to the surveillance capsule holder tubes originally installed in TMI-1, irradiation of the TMI-1 capsules was to be conducted in TMI-2 pursuant to 10 CFR 50, Appendix H,Section II.C.4.
A total of six (6) R.V. Surveillance Capsules had original'.y been available for irradiation at TMI-1.
One of the capsules (Capsule E) had been irradiated at TMI-l and subsequently withdrawn and tested. A second capsule (Capsule A) had been installed at TMI-2 due to the un-availability of TMI-l for further capsule irradiation due to vibration problems.
The other four capsules were scheduled for later insertions.
However, due to the TMI-2 incident, Unit 2 may be out of operation for a considerably longer period of time than will be IMI-1.
So that TMI-l will have an ongoing surveillance program, a TMI-l capsule will be inserte
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J R. W. Reid TLL 511 into a holder tube in ':hc Crystal River Unit 3 (CR-3) reactor.
Becease similarities exist between TMI-l and CR-3, appropriate adjustments and margins can be imposed to the surveillance capsule irradiation in CR-3 to account for such dif ferences that may exist in the irradiation exposure of the TMI-l Reactor Vessel and the surveillance capsule.
The'> chcnges have been reviewed and approved for inclusion in TSCR #91.
Sincerely, 1 a,
ll sj HL D.
lukill Director, IMI-l HDH;'GM:;.ah cc:
J. T. Collins B. J. Snyder B. H. Grier D. Dilanni H. Silver