ML19210A788
| ML19210A788 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/10/1978 |
| From: | Herbein J METROPOLITAN EDISON CO. |
| To: | Mcdonald W NRC OFFICE OF MANAGEMENT AND PROGRAM ANALYSIS (MPA) |
| Shared Package | |
| ML19210A789 | List: |
| References | |
| GQL-0199, GQL-199, NUDOCS 7910310677 | |
| Download: ML19210A788 (2) | |
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- u9M, me a nxnss METROPOLI FAN EDISON COMPANY POST OFFICE BOX 542 READING, PENNSYLVANI A 19603 TELEPHONE 215 - 929 3601 February 10, 1978 SQL 0199 7-
.3 Director of Nuclear Reactor Regulation v,3,.,.,
Attn:
Mr. W. G. Mcdonald, Director y,
Office of Management Information & Program Control U. S. Nuclear Regulatcry Cc==issien Washingten, D. C. 20555 Operating License No. DPR-50 Docket No. 50-289 Enclosed please find the January Operating Status Report for Three Mile Island Nuclear Station Unit 1.
^1.cerely, J. G Herbein Vice President-Generation JGH:DGM:ejg Enclosure ec:
Mr. J. P. O'Reilly, Director Office of Inspection & Enforcement, Regicn 1 U. S. Nuclear Regulatory Ccc=ission 631 Park Avenue King of Prussia, Pennsylvania 19hC6 b
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TMI-l CPERATING SU'C!ARY January 1978 Unit Performance The Unit operated at essentially 100% full power for the entire month except for the brief unplanned power reductica to 88% power on 01-07-78 due to a heatet drain pump seal failure and the planned power reduction to 50% power en 01-27-73 to conduct turbine stop valve testing and shift into an all-reds-out mode of operation.
The new comprehensive In-Service-Inspection program as required by 10 CFR 50.55a vent into effect this scnth requiring extensive operational testing of safety re-lated pumps and valves.
Sicnificant Pcver Reductions The Unit was reduced to about 88% power en 01-07-78 as a result of the seal failure en HD-F13.
Because ED-PlA was being overhauled when the "B" pump seal failed, only ED-Plc was available, resulting in the reduction of total feedvater flow to the steam generators. The overhaul of ED-PlA was cc=pleted and the Unit was returned to 100%
power within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
The Unit was reduced to about 50% power on 01-27-78 to conduct the turbine step valve testing. While at 50% power the Reactor Centrol Rods were withdrawn to an "All-Rods-Cut" configuration as part of the planned end of cycle mode of operation.
The Unit was returned to 100% power in 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />.
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TMI-1 OPERATING SUICIARY January 1978 Unit Performance The Unit operated at essentially 100", full power for the entire month except for the brief unplanned power reduction to 885 power on 01-07-78 due to a heater drain pump seal failure and the planned power reduction to 50", power on 01-27-78 to conduct turbine stop valve testing and shift into an all-rods-cut mode of operation.
The new comprehensive In-Service-Inspection program as required by 10 CFR 50.55a vent into effect this =onth requiring extensive operational testing of safety re-lated pumps and valves.
Sirnificant Power Reductions The Unit was reduced to about 88% power on 01-07-78 as a result of the seal failure on HD-F13.
Because HD-P1A was being overhauled when the "B" pump seal failed, only HD-Plc was available, resulting in the reduction of total feedwater flow to the steam generators. The overhaul of HD-P1A was ec=pleted and the Unit was returned to 100",
power within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
The Unit was reduced to about 50% power on 01-27-78 to conduct the turbine stop valve testing. While at 50", power the Reactor Control Rods were withdrawn to an "All-Rods-Out" configuration as part of the planned end of cycle mode of operation.
The Unit was returned to 100% power in 11 hours1.273148e-4 days <br />0.00306 hours <br />1.818783e-5 weeks <br />4.1855e-6 months <br />.
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